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196 Vetted Tools β€’ 3,592,344 GitHub Stars

Best Open Source Business Software Software

Browse 196 production-ready, self-hostable open-source tools in Business Software. Eliminate per-seat SaaS costs, retain complete data ownership, and claim $100K+ in startup cloud hosting credits.

Zero Per-Seat Licensing 100% Self-Hostable Cloud Credits Compatible

Top Open-Source Business Software Software Compared

Direct overview of top-ranked solutions by community stars and license

Tool Name GitHub Stars License Replaces Proprietary Details
Tiledesk β˜… 156,223 MIT Intercom, Voiceflow View Stack β†’
Affine β˜… 134,975 MIT Notion, OneNote View Stack β†’
Tldraw β˜… 134,975 Open Source Miro, Microsoft Visio View Stack β†’
OpenBB β˜… 75,386 AGPL-3.0 Power BI, Bloomberg Terminal View Stack β†’
Excalidraw β˜… 74,046 MIT Miro, Microsoft Visio View Stack β†’

All 196 Business Software Open Source Tools

Ranked by GitHub community stars & active adoption

196 Tools
Tiledesk logo

Tiledesk

MIT
156,223 stars

Build AI chatbots, automate customer support workflows, and connect live agents across web, WhatsApp, email, and voice with a no-code visual designer.

Replaces: Intercom Voiceflow Zendesk
Affine logo

Affine

MIT
134,975 stars

An open-source, local-first knowledge base that merges structured docs, infinite whiteboards, databases, and AI into a single workspace for teams and creators.

Replaces: Notion OneNote Miro
Tldraw logo

Tldraw

Open Source
134,975 stars

Virtual whiteboard that works instantly on any device, no signup required, with real-time multiplayer collaboration built in.

Replaces: Miro Microsoft Visio LucidChart
OpenBB logo

OpenBB

AGPL-3.0
75,386 stars

Connects proprietary, licensed, and public financial data with AI agents in a self-hostable workspace for asset managers, hedge funds, and banks.

Replaces: Power BI Bloomberg Terminal Tableau
Excalidraw logo

Excalidraw

MIT
74,046 stars

Virtual whiteboard for sketching diagrams, flowcharts, and wireframes with a distinctive hand-drawn look. Real-time collaboration built in.

Replaces: Miro Microsoft Visio LucidChart
Baserow logo

Baserow

MIT
65,398 stars

Open-source platform for building databases, internal apps, and automated workflows without writing code. Available on cloud or self-hosted.

Replaces: Airtable Microsoft Excel Google Sheets
It's a Plan logo

It's a Plan

AGPL-3.0
61,817 stars

Self-hosted issue tracker with boards, timelines, initiatives and dashboards, where AI agents take assigned issues like teammates. AGPL-3.0, no per-seat fees.

Replaces: Linear Jira ClickUp
Twenty logo

Twenty

AGPL-3.0
60,000 stars

Self-hostable CRM built for technical teams who need a fully customizable, extensible platform without vendor lock-in or proprietary tooling.

Replaces: Salesforce HubSpot Attio
GitLab logo

GitLab

MIT
58,808 stars

A comprehensive AI-powered DevSecOps platform that integrates development, security, and operations, streamlining software delivery and enhancing productivity.

Replaces: GitHub GitHub Actions Jenkins
AppFlowy logo

AppFlowy

AGPL-3.0
56,979 stars

Open source collaborative workspace combining notes, databases, and AI with full data ownership, offline support, and self-hosting options.

Replaces: Notion OneNote Confluence
Ever Gauzy logo

Ever Gauzy

AGPL-3.0
55,465 stars

All-in-one solution for ERP, CRM, HRM, ATS, and project management to streamline your business operations

Replaces: Salesforce Asana HubSpot
ERPNext logo

ERPNext

GPL-3.0
55,465 stars

Open-source ERP solution offering modules for accounting, inventory, HR, CRM, and more. Customizable and scalable for businesses of all sizes.

Replaces: SAP Microsoft Dynamics 365 NetSuite
Open Mercato logo

Open Mercato

MIT
55,465 stars

A modular CRM/ERP framework built on Next.js and TypeScript that encodes hundreds of architectural decisions so dev teams can ship production features in…

Replaces: SAP Retool
ezBookkeeping logo

ezBookkeeping

MIT
54,204 stars

A privacy-first personal finance app with two-level accounts, multi-currency support, AI receipt recognition, and broad data import from formats like GnuCash…

Replaces: YNAB Monarch Money Mint
Easy!Appointments logo

Easy!Appointments

GPL-3.0
49,614 stars

Self-hosted appointment scheduling solution with Google Calendar sync, customizable workflows, and no monthly fees. Perfect for healthcare, salons, and…

Replaces: Calendly Doodle Clockwise
Rallly logo

Rallly

AGPL-3.0
49,614 stars

A user-friendly, open-source tool for coordinating events and meetings without the hassle of back-and-forth emails or messages.

Replaces: Calendly Doodle Clockwise
Papermark logo

Papermark

AGPL-3.0
47,521 stars

Secure, customizable platform for sharing documents and tracking engagement. Perfect for sales teams, marketers, and businesses.

Replaces: PandaDoc Docuware DocSend
Papra logo

Papra

AGPL-3.0
47,521 stars

A document management platform that helps you archive, organize, and search files with email ingestion, tagging capabilities, and powerful search functionality.

Replaces: Google Drive Microsoft 365 Dropbox
Colanode logo

Colanode

Apache-2.0
46,357 stars

Local-first collaboration platform combining real-time chat, rich text pages, databases, and file management in a single self-hostable workspace.

Replaces: Notion Microsoft Teams Slack
Crater logo

Crater

AGPL-3.0
45,638 stars

Crater offers AI-driven invoicing workflows, payments, and working capital tools to enhance your platform with minimal technical effort.

Replaces: Quickbooks Stripe Xero
Formance logo

Formance

MIT
45,638 stars

Build custom financial flows and integrate with any provider using Formance's agnostic platform

Replaces: Stripe PayPal Braintree
Lago logo

Lago

AGPL-3.0
45,638 stars

Open-source billing system that handles metering, usage-based pricing, and invoicing at scale. Perfect for AI, cloud, and API companies needing flexible…

Replaces: Stripe PayPal Braintree
Paymenter logo

Paymenter

MIT
45,638 stars

Automate subscriptions and manage payments with a flexible, open-source billing system designed specifically for hosting providers.

Replaces: Stripe Chargebee Recurly
Seafile logo

Seafile

Open Source
44,047 stars

Open source file sync and sharing platform with custom properties, AI automation, collaborative editing, and enterprise-grade security for teams.

Replaces: Google Drive Mega Dropbox
Sync-in logo

Sync-in

AGPL-3.0
44,047 stars

Secure, open-source platform for file storage, sharing, and collaboration. Host your data on your own infrastructure with full control and transparency.

Replaces: Google Drive Mega Dropbox
Nextcloud logo

Nextcloud

AGPL-3.0
44,047 stars

Nextcloud offers on-premises file sync, sharing and collaboration platform with advanced security and privacy features.

Replaces: Google Drive Microsoft Teams Mega
Odoo logo

Odoo

Open Source
40,828 stars

Integrated suite of business apps covering accounting, CRM, inventory, eCommerce, HR, and project management, available free as Community or paid Enterprise…

Replaces: Salesforce HubSpot SAP
Dittofeed logo

Dittofeed

MIT
40,246 stars

Dittofeed offers low-code tools for message automation across multiple channels, including powerful segmentation and personalization features.

Replaces: Mailchimp Customer.io Brevo
Postiz logo

Postiz

AGPL-3.0
40,000 stars

Self-hostable social media scheduler that lets you plan, generate, and publish content across 30+ networks with AI assistance, team collaboration, and…

Replaces: Post Bridge HootSuite Buffer
SAMA logo

SAMA

GPL-3.0
39,499 stars

Open source chat server with end-to-end encryption, clustering support, and comprehensive messaging features for building real-time communication apps

Replaces: Discord Microsoft Teams Slack
Alokai logo

Alokai

MIT
37,042 stars

A comprehensive Frontend as a Service solution that helps developers create, deploy and manage enterprise ecommerce storefronts with ready integrations and…

Replaces: Shopify Adobe Commerce Magento
Bagisto logo

Bagisto

MIT
37,042 stars

A flexible eCommerce platform built on Laravel that enables businesses to create marketplaces, mobile apps, and headless commerce solutions

Replaces: Shopify Magento BigCommerce
Saleor logo

Saleor

BSD-3-Clause
37,042 stars

Headless, API-first e-commerce solution with powerful features for customization, scalability, and seamless integration across channels.

Replaces: Shopify Adobe Commerce Magento
Shopware logo

Shopware

MIT
37,042 stars

A flexible and customizable ecommerce solution that enables businesses to build responsive online stores with advanced features and automation capabilities.

Replaces: Shopify Adobe Commerce Magento
Spree Commerce logo

Spree Commerce

BSD-3-Clause
37,042 stars

Headless eCommerce platform with REST API, TypeScript SDK, and Next.js storefront. Handle B2B, multi-vendor marketplaces, and cross-border commerce…

Replaces: Shopify Adobe Commerce Magento
Vendure logo

Vendure

MIT
37,042 stars

A headless, API-first e-commerce framework built on Node.js with TypeScript, offering customization and scalability for online stores.

Replaces: Adobe Commerce Magento WooCommerce
Anki logo

Anki

Open Source
32,000 stars

Flashcard app using spaced repetition to schedule reviews at the exact moment you're likely to forget, so you retain more with less study time.

Replaces: Quizlet Brainscape Memrise
Brace.to logo

Brace.to

MIT
30,224 stars

A privacy-focused bookmark manager that encrypts your saved links, allowing you to access them anytime, anywhere, on any device with complete control.

Replaces: Pocket Raindrop Readwise Reader
Workadventure logo

Workadventure

Open Source
30,178 stars

Create customizable virtual workspaces for remote teams to interact naturally, host events, and collaborate through spontaneous conversations and scheduled…

Replaces: Microsoft Teams Google Meet Zoom
Medusa logo

Medusa

MIT
28,320 stars

Flexible, customizable e-commerce platform with headless architecture, built-in features, and extensive plugin ecosystem for scalable online stores.

Replaces: Shopify Adobe Commerce Magento
Solidus logo

Solidus

BSD-3-Clause
28,320 stars

Open-source eCommerce platform offering customization, scalability and enterprise-grade features for brands of all sizes

Replaces: Shopify Adobe Commerce Magento
WooCommerce logo

WooCommerce

GPL-2.0
28,320 stars

Build and manage online stores with customizable features, extensions, and themes for businesses of all sizes.

Replaces: Shopify Adobe Commerce Magento
OpenSEO logo

OpenSEO

MIT
26,000 stars

Manage keyword research, backlink analysis, competitor monitoring, and rank tracking without expensive SaaS subscriptions. Self-hostable, MIT-licensed, uses…

Replaces: Semrush Ahrefs Ubersuggest
Kutt logo

Kutt

MIT
25,075 stars

Kutt offers a free and open-source solution for shortening URLs, complete with custom domains and detailed analytics.

Replaces: TinyURL Bitly Short.io
Lua.sh logo

Lua.sh

AGPL-3.0
25,075 stars

Open-source platform for creating shortened URLs with advanced analytics, custom domains, and API integration for marketing and development teams.

Replaces: TinyURL Bitly Short.io
Shlink logo

Shlink

MIT
25,075 stars

Keep control over all your shortened URLs by serving them under your own domains with this simple yet powerful tool.

Replaces: TinyURL Bitly Short.io
Sink logo

Sink

AGPL-3.0
25,075 stars

A serverless link shortener that runs entirely on Cloudflare, offering URL compression, analytics, and customizable slugs.

Replaces: TinyURL Bitly Short.io
Slugy logo

Slugy

MIT
25,075 stars

Open-source URL shortener with analytics, custom domains, QR codes, and link-in-bio pages. Create branded short links with detailed tracking insights.

Replaces: TinyURL Bitly Short.io
WR.DO logo

WR.DO

MIT
25,075 stars

WR.DO offers free domain name distribution and short URL generation, built on Cloudflare's infrastructure for reliability and speed.

Replaces: TinyURL Bitly Short.io
Billion Mail logo

Billion Mail

AGPL-3.0
24,109 stars

Self-hosted email marketing platform with unlimited sending, AI-powered email creation, real-time analytics, and no monthly fees. Complete SMTP solution.

Replaces: Resend Mailchimp SendGrid
Hyvor Post logo

Hyvor Post

AGPL-3.0
24,109 stars

Create and send newsletters with complete privacy protection. No tracking, no data collection - just simple, clean email delivery with customizable templates…

Replaces: Mailchimp Brevo Kit (ConvertKit)
Keila logo

Keila

AGPL-3.0
24,109 stars

Self-hosted newsletter platform with powerful features, data protection, and full control over your mailing lists and campaigns.

Replaces: Substack Mailchimp SendGrid
MailCheap logo

MailCheap

AGPL-3.0
24,109 stars

Newsletter platform billed by emails sent, not list size, with scheduling, a public website, AI agent access and deliverability tools from $19 a month.

Replaces: Substack Mailchimp Kit (ConvertKit)
Mautic logo

Mautic

Open Source
24,109 stars

Mautic is a free and open source marketing automation platform that helps businesses manage leads, create campaigns, and analyze results.

Replaces: HubSpot Mailchimp SendGrid
Notifuse logo

Notifuse

AGPL-3.0
24,109 stars

Free open-source email platform for newsletters and transactional emails. Self-hosted alternative to Mailchimp with visual MJML editor, A/B testing, and…

Replaces: Resend Substack Mailchimp
Plunk logo

Plunk

AGPL-3.0
24,109 stars

Plunk unifies marketing, transactional, and broadcast emails into a single, complete solution for businesses of all sizes.

Replaces: Resend Mailchimp SendGrid
Sendportal logo

Sendportal

MIT
24,109 stars

Open-source email marketing platform offering unlimited subscribers, campaigns, and workspaces. Self-hosted solution with powerful API and beautiful interface.

Replaces: Mailchimp SendGrid Brevo
useSend logo

useSend

AGPL-3.0
24,109 stars

Open source email platform for transactional and marketing emails. Self-host or use cloud service with transparent pricing - pay only for emails sent.

Replaces: Resend Mailchimp SendGrid
Krayin logo

Krayin

MIT
24,000 stars

Open source customer relationship management platform with sales tracking, marketing automation, and customizable workflows for businesses of all sizes.

Replaces: Salesforce HubSpot Attio
Teable logo

Teable

AGPL-3.0
22,000 stars

Open-source platform combining powerful database capabilities with a user-friendly spreadsheet interface for efficient data management and collaboration.

Replaces: Airtable Microsoft Excel Google Sheets
Ghost logo

Ghost

MIT
21,522 stars

Publish content, send email newsletters, and sell paid subscriptions from one platform. Used by independent journalists, creators, and businesses like…

Replaces: WordPress Substack Telegraph
Documenso logo

Documenso

AGPL-3.0
18,972 stars

Streamline your document workflows with a powerful, privacy-focused e-signature platform that puts you in control of your data.

Replaces: DocuSign PandaDoc DocSend
OpenSign logo

OpenSign

AGPL-3.0
18,972 stars

A powerful, open-source e-signature solution offering customization, integration, and enhanced security for businesses of all sizes.

Replaces: DocuSign PandaDoc
Wraft logo

Wraft

AGPL-3.0
18,972 stars

Complete document lifecycle management with automated generation, approval workflows, e-signatures, and branded templates. Create professional documents at…

Replaces: DocuSign PandaDoc
Ethora logo

Ethora

Apache-2.0
18,313 stars

Build branded chat apps with AI agents, group messaging, document exchange, and digital wallets using React and React Native components.

Replaces: Stream Sendbird
dDocs logo

dDocs

AGPL-3.0
16,960 stars

Write, organize, and collaborate in real-time with complete privacy and security. This app is an open-source, online/offline compatible, and AI-free…

Replaces: Microsoft Word Google Docs Superhuman Docs
Listmonk logo

Listmonk

AGPL-3.0
16,142 stars

Send email campaigns and transactional messages to millions of subscribers with a single high-performance binary backed by Postgres.

Replaces: Substack Mailchimp SendGrid
Wraps logo

Wraps

AGPL-3.0
16,142 stars

Build email templates as React components and automations in TypeScript. Deploy to your AWS account with SES integration. Marketing teams edit content without…

Replaces: Resend SendGrid Customer.io
Docuseal logo

Docuseal

AGPL-3.0
15,626 stars

Self-hostable e-signature platform for creating, sending, and signing PDF forms with automatic digital signatures, a REST API, and embeddable components.

Replaces: DocuSign PandaDoc
Formizee logo

Formizee

Apache-2.0
13,207 stars

Formizee is an open-source platform for designing, building, and analyzing forms, offering an affordable all-in-one solution

Replaces: Google Forms Tally Typeform
HeyForm logo

HeyForm

AGPL-3.0
13,207 stars

A versatile form builder for crafting custom surveys, quizzes, and data collection tools with advanced features and integrations.

Replaces: Google Forms Tally Typeform
Ikiform logo

Ikiform

MIT
13,207 stars

Build beautiful, interactive forms with AI assistance. Open-source alternative to Google Forms with unlimited submissions, advanced analytics, and seamless…

Replaces: Google Forms Tally Typeform
LimeSurvey logo

LimeSurvey

Open Source
13,207 stars

LimeSurvey is a powerful open-source tool for creating customizable online surveys, polls, and questionnaires.

Replaces: Google Forms Tally Typeform
OpnForm logo

OpnForm

AGPL-3.0
13,207 stars

A versatile open-source form builder for collecting data, managing submissions, and integrating with your favorite tools.

Replaces: Google Forms Tally Typeform
Palform logo

Palform

AGPL-3.0
13,207 stars

Build end-to-end encrypted forms with enterprise-grade features, no coding required. Protect sensitive data and enhance user trust.

Replaces: Google Forms Typeform Jotform
Macro Tasks logo

Macro Tasks

AGPL-3.0
12,659 stars

Task manager built for engineering teams, combining status tracking, priority management, GitHub integration, and AI agents that can close tasks automatically.

Replaces: Linear Todoist ClickUp
Ever Teams logo

Ever Teams

AGPL-3.0
12,659 stars

Ever Teams offers an all-in-one solution for work management, time tracking, and team collaboration with integrations for popular tools.

Replaces: Linear Jira Monday
Fizzy logo

Fizzy

Open Source
12,659 stars

Track issues, ideas, and projects with a modern kanban board that's fast and straightforward. Free for 1000 cards, then $20/month for unlimited use.

Replaces: Jira Monday ClickUp
Huly logo

Huly

EPL-2.0
12,659 stars

Combines project management, team chat, virtual office, and collaborative docs into a single platform. A self-hostable alternative to Linear, Jira, Slack, and…

Replaces: Notion Linear Monday
Kan logo

Kan

AGPL-3.0
12,659 stars

Free kanban project management with unlimited boards, lists, and cards. Import Trello boards, collaborate with teams, and self-host for complete control.

Replaces: Jira Monday ClickUp
Kanba logo

Kanba

MIT
12,659 stars

Organize projects with intuitive Kanban boards, powered by Supabase backend and Stripe payment processing for complete project management workflow.

Replaces: Jira Monday ClickUp
Kaneo logo

Kaneo

MIT
12,659 stars

Self-hosted project management platform with visual task management, data privacy, and complete control over customization - built by developers for developers.

Replaces: Linear Jira Monday
Kanri logo

Kanri

GPL-3.0
12,659 stars

Kanri is a free, open-source personal Kanban app that works offline, offering a modern and simple experience while respecting your privacy.

Replaces: Jira Monday ClickUp
Leantime logo

Leantime

AGPL-3.0
12,659 stars

Open-source software designed to streamline tasks, boost productivity, and enhance collaboration for teams of all types, including those with ADHD and…

Replaces: Jira Monday ClickUp
Manage logo

Manage

AGPL-3.0
12,659 stars

Project management app with task lists, calendar, files, docs and full-text search. Self-host it on your own infrastructure with team roles and permissions.

Replaces: Linear Jira Monday
OpenProject logo

OpenProject

GPL-3.0
12,659 stars

Full-featured project management platform with Gantt charts, agile boards, time tracking, and team collaboration. Self-host or use managed cloud hosting.

Replaces: Linear Jira Monday
Operately logo

Operately

Apache-2.0
12,659 stars

Operately is an open source platform that centralizes projects, goals, and processes, helping startups run efficiently without a COO.

Replaces: Jira Monday ClickUp
Orgnise logo

Orgnise

AGPL-3.0
12,659 stars

A versatile project management platform that combines task organization, team collaboration, and workflow automation in one intuitive interface.

Replaces: Notion Linear Monday
Plane logo

Plane

AGPL-3.0
12,659 stars

Open source project management platform combining issues, wikis, and AI agents in one workspace. Available on cloud, self-hosted, and air-gapped deployments.

Replaces: Linear Jira Monday
Redmine logo

Redmine

GPL-2.0
12,659 stars

Self-hosted project management web app built on Ruby on Rails with issue tracking, time logging, SCM integration, and multi-project support across any database.

Replaces: Linear Jira Monday
Sayr logo

Sayr

Open Source
12,659 stars

Source-available project management platform with dual views - internal team workspace and public portal for user feedback, voting, and progress tracking.

Replaces: Linear Monday ClickUp
Super Productivity logo

Super Productivity

MIT
12,659 stars

Privacy-first task manager combining task lists, Kanban, Pomodoro timers, time tracking, and integrations with GitHub, GitLab, and Jira. No account required…

Replaces: Monday Todoist ClickUp
Taiga logo

Taiga

MPL-2.0
12,659 stars

Self-hostable agile project management tool with Kanban and Scrum boards, sprint planning, issue tracking, and reporting for teams of any size.

Replaces: Jira Monday ClickUp
Vikunja logo

Vikunja

AGPL-3.0
12,659 stars

A powerful, open-source task management platform for teams and individuals, offering customizable workflows and seamless integration.

Replaces: Linear Jira Monday
Wekan logo

Wekan

MIT
12,659 stars

Open-source Kanban board solution offering visual task management, self-hosting capabilities, and robust security features for teams and individuals.

Replaces: Jira Monday ClickUp
Windshift logo

Windshift

AGPL-3.0
12,659 stars

Self-hosted, open-source project management tool with boards, milestones, portals, time tracking, and test management on your own infrastructure.

Replaces: Linear Jira ClickUp
Worklenz logo

Worklenz

AGPL-3.0
12,659 stars

Worklenz is a comprehensive project management platform that helps agencies organize tasks, track resources, and boost productivity.

Replaces: Linear Jira Monday
CRM logo

CRM

MIT
12,000 stars

Open source CRM with AI agents that read your inbox, enrich contacts and companies, schedule follow-ups, and build new agents from plain-language descriptions.

Replaces: Salesforce HubSpot Attio
UnoPim logo

UnoPim

MIT
11,000 stars

Open source Product Information Management system with an AI agent for catalog enrichment, bulk updates, multilingual content, and omnichannel distribution.

Replaces: Akeneo Pimcore
Your Next Store (YNS) logo

Your Next Store (YNS)

MIT
10,961 stars

Fast, modern e-commerce with instant setup and full customization. Powered by Stripe for seamless transactions.

Replaces: Shopify Magento BigCommerce
Autumn logo

Autumn

Apache-2.0
10,742 stars

Simplify Stripe integration for AI startups with 3 functions, 0 webhooks. Build pricing plans in 30 minutes with usage tracking, credits, and feature controls.

Replaces: Stripe Chargebee Orb
Flexprice logo

Flexprice

AGPL-3.0
10,742 stars

A flexible billing platform that handles usage-based metering, credit management, and subscription billing, giving developers full control over pricing models.

Replaces: Stripe Orb
Hyperswitch logo

Hyperswitch

Apache-2.0
10,742 stars

A unified payment infrastructure that connects multiple payment processors through a single API integration, enabling global payment processing

Replaces: Stripe PayPal Braintree
Meteroid logo

Meteroid

AGPL-3.0
10,742 stars

Open-source pricing and billing platform that helps SaaS companies launch, test, and scale complex billing models with ease. Features metering, invoicing, and…

Replaces: Stripe Chargebee Orb
OpenMeter logo

OpenMeter

Apache-2.0
10,742 stars

Open source billing platform that turns events into revenue with real-time metering, usage limits, and flexible pricing. Integrates with Stripe, CRMs, and…

Replaces: Stripe Chargebee Orb
UniBee logo

UniBee

AGPL-3.0
10,742 stars

Replace expensive billing solutions with open-source software. Automate subscriptions, accept multiple payments including crypto, and gain real-time revenue…

Replaces: Stripe Chargebee Recurly
Gumroad logo

Gumroad

MIT
10,451 stars

A digital marketplace platform where creators can sell digital products, from courses to software, with built-in payment processing and content delivery.

Replaces: Stripe Kajabi Dodo Payments
Akaunting logo

Akaunting

Open Source
10,439 stars

Self-hostable accounting software covering invoicing, expense tracking, cash flow, and client portals. Free to use, available in 50+ languages.

Replaces: Quickbooks Xero Zoho Invoice
Bigcapital logo

Bigcapital

AGPL-3.0
10,263 stars

Cloud-based accounting software that streamlines bookkeeping, generates intelligent reports, and offers multi-currency support for efficient financial…

Replaces: Quickbooks Insightly Dext
Invoice Ninja logo

Invoice Ninja

Elastic-2.0
10,263 stars

Free invoicing software for freelancers and small businesses. Create professional invoices, track expenses, accept online payments, and manage projects…

Replaces: Quickbooks Xero Zoho Invoice
Polar logo

Polar

Apache-2.0
10,000 stars

Comprehensive payment solution with built-in tax handling, automated benefits, and seamless integrations for digital product and SaaS businesses.

Replaces: Stripe Dodo Payments Sellfy
Paperless-ngx logo

Paperless-ngx

GPL-3.0
9,284 stars

A powerful open-source solution for managing, organizing, and searching your digital documents with ease and efficiency.

Replaces: DocuWare DocSend
Formbricks logo

Formbricks

AGPL-3.0
9,058 stars

Collect feedback across websites, apps, and emails with targeted surveys, user segmentation, and GDPR-compliant data handling. Self-host or use the cloud.

Replaces: Google Forms Tally Typeform
Sylius logo

Sylius

MIT
8,564 stars

Headless open-source eCommerce platform on top of PHP/Symfony/API Platform. Headless e-commerce platform

Replaces: Shopify Ecwid
Planka logo

Planka

Open Source
8,276 stars

Self-hosted Kanban board for agile teams. Unlimited boards, real-time sync, GDPR-compliant, and available as a free Community Edition or paid Pro.

Replaces: Jira Monday ClickUp
Fonoster logo

Fonoster

MIT
8,200 stars

Build and deploy powerful voice and messaging applications with ease using Fonoster's flexible, scalable, and developer-friendly platform.

Replaces: Twilio
UnInbox logo

UnInbox

AGPL-3.0
7,254 stars

Streamline team communication with shared inboxes, unlimited email addresses, and customizable workflows. Perfect for modern businesses seeking organized…

Replaces: Gmail HEY Front
Dub Links logo

Dub Links

AGPL-3.0
7,246 stars

Link management platform for marketing teams with custom domains, UTM builder, A/B testing, geo-targeting, QR codes, and real-time conversion analytics.

Replaces: TinyURL Bitly Short.io
Papercups logo

Papercups

MIT
6,121 stars

Open-source live customer chat. Live chat widget

Replaces: Intercom Zendesk
Chatwoot logo

Chatwoot

MIT
6,063 stars

Manage customer conversations across live chat, email, WhatsApp, Instagram, and more from one inbox, with an AI assistant that suggests replies and automates…

Replaces: Intercom Open LiveChat
Macro CRM logo

Macro CRM

AGPL-3.0
6,000 stars

Automatically creates and enriches contacts, companies, and deal threads from your team's email. No data entry, no imports, no admin overhead.

Replaces: Salesforce HubSpot Attio
Jitsi logo

Jitsi

Apache-2.0
5,903 stars

Host encrypted video conferences directly in your browser, deploy on your own servers, or integrate into applications - all with this powerful open source…

Replaces: Microsoft Teams Google Meet Zoom
Cal.com logo

Cal.com

MIT
5,334 stars

Cal.diy is the community edition of Cal.com for personal self-hosting, with calendar sync, video conferencing, payment support, and a REST API.

Replaces: Calendly Doodle Clockwise
Docs logo

Docs

MIT
5,182 stars

Transform document collaboration with real-time editing, version control, and secure sharing features that enhance team productivity and communication.

Replaces: Notion Microsoft Word Confluence
Midday logo

Midday

AGPL-3.0
5,124 stars

All-in-one tool for freelancers and small businesses to manage finances, track time, store files, and send invoices efficiently.

Replaces: YNAB Clockify Mint
Expensify logo

Expensify

MIT
5,100 stars

Automate expense reporting, reimbursements, and corporate card management with real-time data sync and powerful integrations.

Replaces: Concur Ramp
Kimai logo

Kimai

AGPL-3.0
5,100 stars

Open-source time tracking solution for businesses of all sizes. Manage projects, track billable hours, and generate insightful reports.

Replaces: Clockify Toggl Harvest
ClearFlask logo

ClearFlask

Apache-2.0
4,596 stars

ClearFlask is an open-source platform for collecting, analyzing, and acting on customer feedback to drive product development.

Replaces: Featurebase Canny UserJot
LogChimp logo

LogChimp

Apache-2.0
4,596 stars

Collect, organize, and prioritize user feedback to build better products. Self-hosted solution for seamless feature request management.

Replaces: Featurebase Canny UserJot
Reflet logo

Reflet

SSPL-1.0
4,596 stars

Collect feedback, prioritize with AI-powered voting, and share transparent roadmaps. Build products users love with automated triage and seamless integration.

Replaces: Featurebase Canny UserJot
Mike logo

Mike

AGPL-3.0
4,400 stars

Self-hostable alternative to Harvey and Legora with document analysis, contract drafting, tabular review, and reusable workflows. Zero licensing costs, full…

Replaces: Harvey Legora
Chobble Tickets logo

Chobble Tickets

AGPL-3.0
4,111 stars

Sell tickets for Β£50/year with payments, QR check-in, refunds, reporting, and a hosted booking site. Self-hostable under AGPL-3.0.

Replaces: Eventbrite Luma Ticket Tailor
Pretix logo

Pretix

Open Source
4,111 stars

Full-stack ticketing platform covering online shop, point of sale, access control, and hardware for events of any size or industry.

Replaces: Eventbrite Luma Ticket Tailor
Erxes logo

Erxes

AGPL-3.0
4,100 stars

All-in-one solution for marketing, sales, and customer service. Boost engagement, streamline workflows, and drive growth.

Replaces: Salesforce HubSpot Attio
Linky logo

Linky

MIT
3,934 stars

Build a dynamic link-in-bio page with a drag-and-drop editor. Integrate platforms to showcase live content and connect with your audience.

Replaces: LinkTree Bento.me Bio.fm
LittleLink logo

LittleLink

MIT
3,934 stars

Open source DIY alternative to Linktree with 100+ branded buttons, multiple themes, and optimized performance. No frameworks or JavaScript required.

Replaces: LinkTree Bento.me Bio.fm
Mixpost logo

Mixpost

MIT
3,900 stars

Create, schedule, and manage social media content from your own server with no subscription fees or usage restrictions.

Replaces: Post Bridge HootSuite Buffer
Frappe CRM logo

Frappe CRM

AGPL-3.0
3,900 stars

A flexible and customizable CRM platform for managing contacts, deals, and customer relationships without the complexity or user-based pricing of traditional…

Replaces: Salesforce HubSpot Attio
Cossistant logo

Cossistant

AGPL-3.0
3,579 stars

Open-source support platform combining AI and human agents. React components with shadcn/ui design philosophy, styled with Tailwind CSS for NextJS apps.

Replaces: Intercom Open LiveChat
Frappe Helpdesk logo

Frappe Helpdesk

AGPL-3.0
3,579 stars

Frappe Helpdesk consolidates customer issues, automates workflows, and empowers self-service to boost agent productivity and customer satisfaction.

Replaces: Intercom LiveChat HelpDesk
Freescout logo

Freescout

AGPL-3.0
3,579 stars

Self-hosted email management system with shared inboxes, automation, and powerful collaboration features for efficient customer support.

Replaces: Intercom LiveChat HelpDesk
Zammad logo

Zammad

AGPL-3.0
3,579 stars

Zammad is an open-source helpdesk software that centralizes customer communications and helps deliver great service experiences efficiently.

Replaces: Intercom Open LiveChat
EspoCRM logo

EspoCRM

AGPL-3.0
3,500 stars

Open-source CRM software for managing customers, companies, projects and opportunities. Intuitive interface with cloud and self-hosted options available.

Replaces: Salesforce HubSpot Attio
Chaskiq logo

Chaskiq

Open Source
3,469 stars

Versatile messaging solution for businesses to engage customers through multiple channels, with AI-powered automation and analytics.

Replaces: Intercom Open LiveChat
Macro Chat logo

Macro Chat

AGPL-3.0
3,435 stars

Team chat app with inline threads, mention-based sharing, a unified inbox for chat and email, and an AI agent that works across your full workspace.

Replaces: Discord Microsoft Teams Slack
Buzz logo

Buzz

Apache-2.0
3,435 stars

Workspace that combines team chat, project planning, and git management with AI agents that collaborate alongside your team on shared context.

Replaces: Microsoft Teams Slack Chanty
Campfire logo

Campfire

MIT
3,435 stars

Install your own group chat system with @mentions, DMs, and mobile support. One-time purchase, no monthly fees. Includes full source code for customization.

Replaces: Microsoft Teams Slack Chanty
Cinny logo

Cinny

AGPL-3.0
3,435 stars

Cinny offers a simple, elegant, and secure interface for Matrix-based conversations, protected by end-to-end encryption.

Replaces: Discord Microsoft Teams Slack
Element logo

Element

AGPL-3.0
3,435 stars

Open-source platform for encrypted communication, file sharing, and collaboration based on the Matrix protocol.

Replaces: Discord Microsoft Teams Slack
Fluxer logo

Fluxer

AGPL-3.0
3,435 stars

Free, open-source instant messaging and VoIP platform with full Markdown support, voice/video calls, moderation tools, and self-hosting options for communities.

Replaces: Discord Slack Guilded
Mattermost logo

Mattermost

Open Source
3,435 stars

Mattermost provides a flexible, open-source platform for secure team collaboration, designed for organizations with strict security and privacy requirements.

Replaces: Microsoft Teams Slack Guilded
Mezon logo

Mezon

MIT
3,435 stars

Build your own community space for gaming, chatting, and hanging out with friends worldwide. Customize your environment for the perfect social experience.

Replaces: Discord Microsoft Teams Slack
Quiet logo

Quiet

GPL-3.0
3,435 stars

Quiet is a peer-to-peer messaging app that syncs messages directly between devices over Tor, with no central server, no phone number required, and no metadata…

Replaces: Discord Slack Telegram
Rocket.Chat logo

Rocket.Chat

MIT
3,435 stars

Open source communication platform combining messaging, voice, video, and AI for organizations that need full data control, air-gapped deployments, and…

Replaces: Discord Microsoft Teams Slack
Twake Chat logo

Twake Chat

AGPL-3.0
3,435 stars

Free Matrix-based messenger with end-to-end encryption, multi-platform bridges, and on-premise deployment. Connect across 30+ networks securely.

Replaces: Microsoft Teams WhatsApp Slack
Wire logo

Wire

GPL-3.0
3,435 stars

A comprehensive collaboration platform offering end-to-end encrypted messaging, file sharing, and video calls with enterprise-grade security and compliance…

Replaces: Discord Microsoft Teams Slack
Zulip logo

Zulip

Apache-2.0
3,435 stars

Zulip is an open-source team chat app that uses threaded conversations to keep communication organized and efficient for teams of all sizes.

Replaces: Microsoft Teams Slack Chanty
Stoat logo

Stoat

Open Source
3,400 stars

Self-hostable group chat with servers, channels, voice, and moderation tools. No ads, no data mining, built under EU privacy law.

Replaces: Discord Slack Telegram
LinkStack logo

LinkStack

AGPL-3.0
3,117 stars

A free, open-source link management platform for creating customizable, self-hosted link pages to showcase your online presence.

Replaces: LinkTree Bento.me Bio.fm
Novu logo

Novu

Open Source
3,036 stars

Open-source platform for building in-app, email, push, SMS, and chat notifications with a unified API, workflow engine, and embeddable inbox component.

Replaces: Customer.io NotificationAPI Knock
Spliit logo

Spliit

MIT
3,000 stars

A user-friendly app for tracking shared expenses, settling debts, and managing group finances with ease and transparency.

Replaces: Splitwise
Shelf logo

Shelf

AGPL-3.0
3,000 stars

Open source asset management platform for teams to track equipment, manage bookings, prevent double-bookings, and handle custody and audits across locations.

Replaces: Sortly Asset Panda
Donetick logo

Donetick

AGPL-3.0
2,700 stars

Organize tasks and chores with intelligent scheduling, fair assignment, and collaboration features. Perfect for families and teams with smart notifications.

Replaces: Todoist TickTick Google Tasks
Hi.Events logo

Hi.Events

Open Source
2,559 stars

Hi.Events is a comprehensive platform for event management and online ticket sales, offering features like QR code check-in, custom ticket types, and…

Replaces: Eventbrite Luma Ticket Tailor
Ballerine logo

Ballerine

Open Source
2,500 stars

Reduce fraud, accelerate underwriting, and maintain compliance with AI-driven merchant risk intelligence for PSPs, banks, and fintechs.

Replaces: SumSub Seon Feedzai
Shuup logo

Shuup

Open Source
2,407 stars

E-Commerce Platform. Headless e-commerce platform

Replaces: Shopify Ecwid
UserTourKit logo

UserTourKit

MIT
2,331 stars

Headless React tour library with WCAG 2.1 AA accessibility, TypeScript support, and pre-styled components. Under 8KB gzipped with full customization control.

Replaces: Userflow Appcues
Comp AI logo

Comp AI

AGPL-3.0
2,100 stars

AI-driven compliance platform that automates evidence collection, policy generation, and continuous monitoring across 580+ integrations for SOC 2, ISO 27001…

Replaces: Vanta Scrut Drata
Relaticle logo

Relaticle

AGPL-3.0
1,800 stars

Open-source CRM with a built-in AI assistant, 37 MCP tools for external agents, custom fields, role-based permissions, and a REST API. No per-seat pricing.

Replaces: Salesforce HubSpot Attio
Flowglad logo

Flowglad

Open Source
1,700 stars

Connects client data across tools, automates recurring accounting workflows, and maintains a self-updating knowledge base with human approval controls.

Replaces: QuickBooks Xero
Probo logo

Probo

MIT
1,500 stars

Compliance management platform where dedicated compliance officers handle your entire program, from risk assessments to audit coordination, with automated…

Replaces: Vanta Scrut Drata
Horilla logo

Horilla

LGPL-2.1
1,500 stars

Horilla is a free, open-source HRMS that streamlines HR processes, from recruitment to offboarding, with customizable modules.

Replaces: Breezy HR Greenhouse BambooHR
Dub logo

Dub

Open Source
1,500 stars

Open-source Bitly Alternative with built-in analytics

Replaces: Bitly
Reqcore logo

Reqcore

AGPL-3.0
1,481 stars

Self-hosted open-source ATS with no per-seat pricing. Full data ownership, modern tech stack, and complete control over your recruitment process.

Replaces: Breezy HR Greenhouse BambooHR
Atomic CRM logo

Atomic CRM

MIT
1,400 stars

Build a customizable CRM that matches your company's vision, designed for developers and loved by end users.

Replaces: Salesforce HubSpot Attio
Fider logo

Fider

AGPL-3.0
1,135 stars

A self-hosted community feedback tool that helps organizations gather, discuss, and prioritize user suggestions and feature requests.

Replaces: Featurebase Canny UserJot
LibreSign logo

LibreSign

AGPL-3.0
841 stars

Control how your documents get signed. Digital document signer

Replaces: DocuSign
TryPost logo

TryPost

AGPL-3.0
790 stars

Plan, schedule, and auto-publish social media content across 10+ networks with a visual calendar, AI captions, team approvals, and self-hosting support.

Replaces: Post Bridge HootSuite Buffer
Contentport logo

Contentport

AGPL-3.0
772 stars

Create, schedule & manage Twitter content at scale with AI assistance, beautiful visuals, and multi-account support. Perfect for busy founders.

Replaces: Post Bridge Ordinal Postel
Hopp logo

Hopp

AGPL-3.0
729 stars

Open-source remote pair programming tool with HD screen sharing, noise-cancelling audio and low-latency remote control. Built specifically for developers.

Replaces: Zoom Drovio Tuple
Busabase logo

Busabase

MIT
643 stars

Busabase gives AI agents a shared database, knowledge base, and skills registry where every proposed change goes through human review before becoming…

Replaces: Notion Airtable Smartsheet
Elmo logo

Elmo

MIT
543 stars

Tracks how ChatGPT, Gemini, Claude, Perplexity, and other AI engines mention your brand, which competitors appear, and which sources get cited.

Replaces: Otterly.AI Profound Peec AI
Shelve logo

Shelve

Apache-2.0
459 stars

Shelve is a comprehensive project management tool designed to streamline workflows and enhance collaboration for developers and teams.

Replaces: Keeper Doppler
Openlane logo

Openlane

Apache-2.0
336 stars

Automates evidence collection, control tracking, and audit reporting across SOC 2, ISO 27001, NIST 800-53, GDPR, and 12+ other frameworks in one platform.

Replaces: Vanta Scrut Drata
ShipShipShip logo

ShipShipShip

Apache-2.0
284 stars

Self-hostable changelog and roadmap platform with community voting, automated newsletters, and kanban boards. Deploy with Docker in minutes.

Replaces: Featurebase Canny UserJot
Notra logo

Notra

AGPL-3.0
270 stars

GEO tool that queries ChatGPT, Claude, Gemini, and Perplexity with your buyers' questions, then shows you who gets recommended and how to close the gap.

Replaces: Otterly.AI Profound Promptwatch
OneGlanse logo

OneGlanse

MIT
241 stars

Runs prompts through ChatGPT, Perplexity, Gemini, Claude, and Google AI Overview interfaces via browser automation, then analyzes captured responses and…

Replaces: Otterly.AI Profound Promptwatch
Ansvisor logo

Ansvisor

MIT
219 stars

Monitors how your brand appears across ChatGPT, Perplexity, Google AI Overviews, and other AI platforms, then turns those insights into prioritized content…

Replaces: Otterly.AI Profound Peec AI
Canonry logo

Canonry

MIT
196 stars

Tracks how often AI tools like ChatGPT, Claude, and Perplexity mention or cite your brand, then fixes the gaps through AEO strategy and content work.

Replaces: Profound Peec AI Scrunch
c15t logo

c15t

Apache-2.0
165 stars

Open source consent management framework for modern web apps. Framework-agnostic, fully customizable, and performance-first with no vendor lock-in.

Replaces: CookieYes Cookie Control OneTrust
OpenPolicy logo

OpenPolicy

Apache-2.0
165 stars

Open-source policy-as-code framework that lets developers create privacy policies, terms of service, and legal agreements using TypeScript with built-in…

Replaces: iubenda Termly
Warpdrive logo

Warpdrive

MIT
74 stars

Pipeline management, deal workspace, contacts, and two-way Gmail for BD teams. Runs on your own infrastructure, MIT licensed, no per-seat fees.

Replaces: Attio Pipedrive Clay
Usertour logo

Usertour

AGPL-3.0
71 stars

Open-source platform for building interactive product tours, tooltips, and in-app guides to improve user engagement and feature adoption without complex coding

Replaces: Userflow Appcues
Malak logo

Malak

AGPL-3.0
61 stars

Open source platform for managing investor updates, KPIs, fundraising pipeline and data rooms. Keep stakeholders informed and organized.

Replaces: Carta Pulley AngelList
BugPin logo

BugPin

AGPL-3.0
47 stars

Embeds a lightweight widget into web apps so users can capture screenshots, annotate issues, and submit reports with console logs and browser metadata included.

Replaces: Markup BugHerd Gleap
Suprascribe logo

Suprascribe

AGPL-3.0
11 stars

Free subscription tracker that automatically scans your email to find recurring charges. Privacy-focused discovery with complete spending overview and…

Replaces: Rocket Money PocketGuard Orbit

Frequently Asked Questions: Open Source Business Software

What are the best open source Business Software tools in 2026?

The highest-ranked open-source software in Business Software is Tiledesk with over 156,223 GitHub stars. Other leading tools include Affine, Tldraw, OpenBB, Excalidraw. All are vetted for production self-hosting.

Can I self-host Business Software open source tools on my own cloud?

Yes. Tools listed in this category support self-hosting via Docker, Docker Compose, Kubernetes, or Helm on AWS, Google Cloud, DigitalOcean, Hetzner, or bare metal with zero per-seat licensing fees.

How can early-stage startups get free cloud credits to host Business Software tools?

Founders can claim up to $100,000 in AWS Activate, $350,000 in Google Cloud for Startups, and $1,000 in DigitalOcean credits via Startupbricks Perks (startupbricks.in/perks) to deploy self-hosted stacks at zero infrastructure cost.

What proprietary SaaS does open source Business Software software replace?

Open-source tools in this category replace proprietary commercial platforms including Intercom, Voiceflow, Zendesk, Gorgias, DocsBot, Mava, Decagon, Watermelon, Notion, OneNote. Switching gives your team 100% data custody, security control, and zero recurring seat costs.

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