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183 Vetted Tools β€’ 7,638,855 GitHub Stars

Best Open Source Productivity & Utilities Software

Browse 183 production-ready, self-hostable open-source tools in Productivity & Utilities. 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 Productivity & Utilities Software Compared

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

Tool Name GitHub Stars License Replaces Proprietary Details
ByteChef β˜… 209,291 Apache-2.0 Make, Zapier View Stack β†’
CodeZero β˜… 209,291 MIT Zoho Flow, Azure Logic Apps View Stack β†’
Windmill β˜… 209,291 Open Source Make, Zapier View Stack β†’
ActivePieces β˜… 209,291 MIT Make, Zapier View Stack β†’
Automatisch β˜… 209,291 Open Source Make, Zapier View Stack β†’

All 183 Productivity & Utilities Open Source Tools

Ranked by GitHub community stars & active adoption

183 Tools
ByteChef logo

ByteChef

Apache-2.0
209,291 stars

Create intelligent automation workflows combining AI agents with your favorite apps and services. Connect, automate, and scale your operations without complex…

Replaces: Make Zapier Workato
CodeZero logo

CodeZero

MIT
209,291 stars

Open-source no-code automation platform for logistics, chatbots, and AI agents. Deploy on cloud, self-host, or hybrid with complete data sovereignty and…

Replaces: Zoho Flow Azure Logic Apps
Windmill logo

Windmill

Open Source
209,291 stars

Powerful, self-hosted platform for building and running workflows, scripts, and apps with code-first approach and collaborative features.

Replaces: Make Zapier Retool
ActivePieces logo

ActivePieces

MIT
209,291 stars

Open-source integration platform for seamless workflow automation. Connect apps, automate tasks, and boost productivity effortlessly.

Replaces: Make Zapier Pipedream
Automatisch logo

Automatisch

Open Source
209,291 stars

Self-hosted automation tool that connects your apps and services, enabling powerful integrations and efficient data flow across your ecosystem.

Replaces: Make Zapier Pipedream
Automa logo

Automa

Open Source
209,291 stars

No-code platform for building AI agents and RPA workflows that automate repetitive business tasks across finance, HR, sales, and operations.

Replaces: Make Zapier Appian
Parlant logo

Parlant

Apache-2.0
156,223 stars

A conversational AI server that manages agent behavior through context-aware guidelines, keeping responses consistent, auditable, and aligned at scale.

Replaces: Voiceflow Rasa Chatbase
Dograh logo

Dograh

BSD-2-Clause
156,223 stars

Open-source voice agent platform that lets you plug in your own STT, LLM, and TTS models, deploy on-prem or in your VPC, and build agents via MCP or a visual…

Replaces: Voiceflow Vapi Retell
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
RustDesk logo

RustDesk

AGPL-3.0
128,000 stars

Cross-platform remote desktop software that runs on your own servers, giving you full data control as a direct alternative to TeamViewer and AnyDesk.

Replaces: AnyDesk TeamViewer Splashtop
Browser Operator logo

Browser Operator

BSD-3-Clause
119,758 stars

Privacy-focused AI browser with intelligent agents for research, analysis, and workflow automation. Features unified memory, compliance guardrails, and…

Replaces: Browserbase Comet Browser Dia Browser
Ego Lite logo

Ego Lite

MIT
119,758 stars

A Chromium-based browser that lets AI agents like Claude Code and Codex run web automation using your real logged-in sessions, without interrupting your…

Replaces: Browserbase Comet Browser Atlas Browser
Requestly logo

Requestly

AGPL-3.0
80,717 stars

A powerful browser extension and desktop app for developers to manipulate network requests, debug APIs, and improve web app testing

Replaces: Postman Testfully
Screenity logo

Screenity

GPL-3.0
78,771 stars

Capture, annotate, and edit screen recordings with no limits or sign-up required. Completely private and open source.

Replaces: Loom Screen Studio Bandicam
Cap logo

Cap

AGPL-3.0
78,771 stars

Record your screen in Instant, Studio, or Screenshot mode, then share via a link with auto-generated transcripts, chapters, and summaries.

Replaces: Loom Screen Studio Bandicam
Kap logo

Kap

MIT
78,771 stars

Capture, edit, and share your screen with ease. Create stunning GIFs and videos for tutorials, demos, and bug reports.

Replaces: Loom Screen Studio Bandicam
ShareX logo

ShareX

GPL-3.0
78,771 stars

ShareX is a free, open-source program that captures or records any area of your screen and shares it with a single keypress, supporting various file types and…

Replaces: Loom Screen Studio Bandicam
Snapify logo

Snapify

AGPL-3.0
78,771 stars

Effortlessly create, share, and collaborate with screen recordings. Control your data with self-hosting or our secure cloud option.

Replaces: Loom Screen Studio Bandicam
Macro Docs logo

Macro Docs

AGPL-3.0
78,075 stars

Collaborative markdown documents with real-time CRDT editing, AI agent cursors, mention linking, and built-in properties tied to your tasks, channels, and…

Replaces: Notion Obsidian Confluence
AnyType logo

AnyType

Open Source
78,075 stars

A local-first, encrypted workspace for notes, tasks, databases, and chats. Your data stays on your device, syncs peer-to-peer, and never passes through a…

Replaces: Notion Obsidian Google Keep
Beaver Notes logo

Beaver Notes

MIT
78,075 stars

A privacy-focused, offline-first note-taking app that stores everything on your device, with Markdown, note linking, file attachments, LaTeX math, and…

Replaces: Notion Obsidian OneNote
Blinko logo

Blinko

GPL-3.0
78,075 stars

The next generation of open-source AI-powered card notes designed to help you quickly capture and organize inspiration so that ideas never run out.

Replaces: Notion Obsidian Evernote
Joplin logo

Joplin

Open Source
78,075 stars

Cross-platform note-taking app with end-to-end encryption, Markdown support, web clipping, and sync via Dropbox, OneDrive, or Joplin Cloud.

Replaces: Obsidian OneNote Google Keep
Justnote logo

Justnote

GPL-2.0
78,075 stars

Justnote is a secure note-taking app that lets you easily create and sync notes across devices while maintaining full control of your data.

Replaces: Notion Obsidian OneNote
Logseq logo

Logseq

AGPL-3.0
78,075 stars

Local-first, open-source knowledge management tool with bidirectional linking, outlines, flashcards, PDF annotations, and whiteboards for building a connected…

Replaces: Notion Obsidian Google Keep
Notesnook logo

Notesnook

GPL-3.0
78,075 stars

End-to-end encrypted note-taking app with zero-knowledge architecture, cross-device sync, web clipper, and a self-hostable sync server.

Replaces: Notion Obsidian OneNote
OpenNotas logo

OpenNotas

Open Source
78,075 stars

OpenNotas is a multi-platform, end-to-end encrypted note-taking app that offers simplicity, synchronization, and offline functionality.

Replaces: Obsidian OneNote Google Keep
Silverbullet logo

Silverbullet

MIT
78,075 stars

A self-hosted, browser-based note-taking system that turns plain Markdown pages into a queryable, scriptable knowledge base you control.

Replaces: Notion Obsidian Logseq
SiYuan logo

SiYuan

AGPL-3.0
78,075 stars

Personal knowledge management system with WYSIWYG block editing, bidirectional links, spaced repetition flashcards, a relational database, and end-to-end…

Replaces: Notion Obsidian OneNote
Fincept Terminal logo

Fincept Terminal

AGPL-3.0
74,994 stars

Comprehensive financial data platform offering economic insights, market analysis, and portfolio management tools

Replaces: Bloomberg Terminal Koyfin
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
Bitwarden logo

Bitwarden

AGPL-3.0
70,047 stars

Bitwarden is an open source password manager that securely stores, shares, and autofills passwords across unlimited devices.

Replaces: 1Password LastPass Proton Pass
KeePassXC logo

KeePassXC

GPL-3.0
70,047 stars

KeePassXC is an open-source password manager that securely stores and manages sensitive information across Windows, macOS, and Linux.

Replaces: 1Password LastPass Proton Pass
Padloc logo

Padloc

AGPL-3.0
70,047 stars

Open-source password manager with end-to-end encryption for passwords, credit cards, notes, and documents. Cross-platform sync with secure sharing capabilities.

Replaces: 1Password LastPass Proton Pass
Passbolt logo

Passbolt

AGPL-3.0
70,047 stars

Open source password manager focused on security, collaboration and privacy for organizations

Replaces: 1Password LastPass Proton Pass
PearPass logo

PearPass

Apache-2.0
70,047 stars

Open-source password manager with peer-to-peer syncing, local storage, and end-to-end encryption. No cloud servers, complete privacy control across devices.

Replaces: 1Password LastPass Proton Pass
Psono logo

Psono

Apache-2.0
70,047 stars

Team-focused password manager with client-side encryption, SAML, LDAP, audit logs, and compliance policies. Self-host on your own servers or use as SaaS.

Replaces: 1Password LastPass Proton Pass
TeamPass logo

TeamPass

GPL-3.0
70,047 stars

Collaborative password manager with folder-level access control, AES-256-GCM encryption, governance tools, and Linux password rotation, runs on your own…

Replaces: 1Password LastPass Proton Pass
Brave logo

Brave

MPL-2.0
66,791 stars

A secure web browser that blocks ads and trackers, protects privacy, and loads pages faster while saving data and battery life.

Replaces: Firefox Google Chrome Dia Browser
Flow logo

Flow

GPL-3.0
66,791 stars

A modern browser combining minimalist design with smart features like profiles, spaces, and command palette. Full Chrome extension support and privacy-focused…

Replaces: Firefox Brave Google Chrome
Helium logo

Helium

GPL-3.0
66,791 stars

Chromium-based desktop browser with default ad and tracker blocking, no analytics, native !bangs, split view, and full MV2 extension support.

Replaces: Firefox Brave Google Chrome
LibreWolf logo

LibreWolf

Open Source
66,791 stars

A Firefox-based browser that strips telemetry, blocks trackers, disables DRM, and ships with a content blocker out of the box.

Replaces: Firefox Brave Google Chrome
Midori Browser logo

Midori Browser

MPL-2.0
66,791 stars

Midori Browser is a lightweight, fast, and secure browser that protects users' privacy, available for Windows, Linux, and Android.

Replaces: Firefox Brave Google Chrome
Waterfox logo

Waterfox

Open Source
66,791 stars

Firefox-based browser with built-in ad blocking, oblivious DNS, zero telemetry, tree-style tabs, and no AI features sending your data anywhere.

Replaces: Firefox Brave Google Chrome
Zen Browser logo

Zen Browser

MPL-2.0
66,791 stars

A Firefox-based browser offering enhanced privacy, split views, and extensive customization options for a personalized browsing experience.

Replaces: Firefox Brave Google Chrome
Darkwrite logo

Darkwrite

AGPL-3.0
64,217 stars

A customizable, offline-first note editor that lets you format text, create lists, add images, and export to HTML - all while maintaining your privacy.

Replaces: Notion Obsidian OneNote
ItsNotes logo

ItsNotes

MIT
64,217 stars

A self-hosted, open-source note-taking app that keeps the Google Keep sticky-note feel while adding folders, timelines, list views, and import support.

Replaces: Google Keep Apple Notes
Standard Notes logo

Standard Notes

AGPL-3.0
64,217 stars

Cross-platform note-taking app with end-to-end encryption, offline access, and powerful organization features for privacy-conscious users.

Replaces: Obsidian OneNote Google Keep
Tolaria logo

Tolaria

AGPL-3.0
64,217 stars

A free, open source note-taking app built on plain Markdown files, Git version control, and direct AI model integration. No account required.

Replaces: Obsidian OneNote Google Keep
Zen logo

Zen

AGPL-3.0
64,217 stars

Minimal note-taking app storing Markdown notes in local SQLite database. Features instant search, flexible tagging, keyboard shortcuts, and offline access.

Replaces: OneNote Google Keep Evernote
Graphite logo

Graphite

Apache-2.0
61,963 stars

A free, open source vector graphics editor built around nondestructive, node-based design. Runs locally in the browser, exports SVG, PNG, and JPG.

Replaces: Canva Adobe Photoshop Figma
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
Memos logo

Memos

MIT
56,979 stars

Memos is a self-hosted, open-source note-taking app built around a private timeline. Write in Markdown, skip the folder setup, and keep your data on your own…

Replaces: Notion Obsidian OneNote
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
Actual logo

Actual

MIT
54,204 stars

Privacy-focused personal finance app using envelope budgeting, multi-device sync, optional end-to-end encryption, and bank sync for US, EU, and UK users.

Replaces: YNAB Monarch Money Mint
Firefly III logo

Firefly III

AGPL-3.0
54,204 stars

Track transactions, budgets, and accounts with a double-entry system, multi-currency support, rule engine, and REST API. Fully self-hostable.

Replaces: YNAB Monarch Money Copilot Money
Ghostfolio logo

Ghostfolio

AGPL-3.0
54,204 stars

Open-source wealth management software for tracking stocks, ETFs, and cryptocurrencies across multiple portfolios

Replaces: YNAB Mint
Monetr logo

Monetr

FSL-1.1-MIT
54,204 stars

Manage your money confidently with monetr, putting aside what you need and spending what you want

Replaces: Splitwise Quickbooks YNAB
Sure.am logo

Sure.am

AGPL-3.0
54,204 stars

An all-in-one personal finance platform. Track, optimize, grow, and manage your money through every stage of life.

Replaces: YNAB Monarch Money Mint
Wealthfolio logo

Wealthfolio

AGPL-3.0
54,204 stars

Wealthfolio is a simple, secure desktop app for tracking investments and managing your wealth without compromising data privacy.

Replaces: Quickbooks YNAB Mint
YAFFA logo

YAFFA

MIT
54,204 stars

YAFFA is a powerful, open-source budget app for managing expenses, budgets, and investments with secure self-hosting.

Replaces: Quickbooks YNAB Monarch Money
Ladybird logo

Ladybird

BSD-2-Clause
45,502 stars

Open source web browser with its own engine, built from scratch without Blink, WebKit, or Gecko. Non-profit backed, no search deals, no user monetization.

Replaces: Firefox Brave Google Chrome
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
Firefiles logo

Firefiles

AGPL-3.0
44,047 stars

Firefiles turns S3 buckets and other cloud backends into a unified file manager with browser-based previews, multi-drive support, and a clean light/dark…

Replaces: Google Drive Mega Dropbox
Spacedrive logo

Spacedrive

Apache-2.0
44,047 stars

A cross-platform file manager that unifies your devices into a seamless, organized digital workspace.

Replaces: Google Drive Mega Dropbox
Hoodik logo

Hoodik

Open Source
44,047 stars

Lightweight, self-hosted cloud storage built with Rust and Vue.js. Features end-to-end encryption, file sharing, search capabilities, and Docker deployment.

Replaces: Mega Dropbox WeTransfer
OpenCloud logo

OpenCloud

Apache-2.0
44,047 stars

Self-hostable cloud file management and collaboration platform with an integrated office suite, zero-trust security, and GDPR compliance for teams and…

Replaces: Google Drive Mega Dropbox
ownCloud logo

ownCloud

Apache-2.0
44,047 stars

Self-hostable file platform for enterprises needing data sovereignty, real-time document collaboration, and compliance with GDPR, HIPAA, and other regulations.

Replaces: Google Drive Mega Dropbox
Peergos logo

Peergos

AGPL-3.0
44,047 stars

A peer-to-peer encrypted filesystem for secure file storage, sharing, and collaboration with end-to-end encryption and user-controlled data.

Replaces: Mega Dropbox Proton Drive
Twake Drive logo

Twake Drive

AGPL-3.0
44,047 stars

Open source encrypted data storage solution offering secure file sharing, collaboration tools, and on-premises deployment for professional teams.

Replaces: Google Drive Mega Dropbox
Outline logo

Outline

BUSL-1.1
41,000 stars

Team knowledge base with real-time collaboration, AI-powered search, Slack integration, and self-hosting support for internal docs and wikis.

Replaces: Notion Confluence Craft
OBS Studio logo

OBS Studio

GPL-2.0
40,572 stars

OBS Studio offers high-quality video recording and live streaming capabilities, supporting multiple platforms and providers.

Replaces: Loom Screen Studio Bandicam
Puter logo

Puter

AGPL-3.0
39,366 stars

Puter is a cloud-based desktop OS you run in the browser, with built-in apps, file storage, and support for hosting web apps and sites.

Replaces: Google Drive Mega Dropbox
Lightpanda logo

Lightpanda

AGPL-3.0
39,000 stars

Purpose-built headless browser that delivers 10x faster performance and 10x lower memory usage compared to Chrome headless for web automation and AI workflows.

Replaces: Browserbase Anchor Browser
SurfSense logo

SurfSense

Apache-2.0
37,930 stars

Self-hostable NotebookLM alternative that lets teams build searchable knowledge bases from diverse sources, with support for any LLM and no data limits.

Replaces: NotebookLM Perplexity ChatPDF
Handy logo

Handy

MIT
36,000 stars

Cross-platform desktop app that transcribes your voice into any text field using a keyboard shortcut, with all processing done locally on your machine.

Replaces: Wispr Flow Superwhisper Typeless
Ntfy logo

Ntfy

Apache-2.0
35,000 stars

A lightweight, open-source solution for sending real-time notifications to your devices, with end-to-end encryption and no sign-up required.

Replaces: Pusher Firebase Cloud Messaging
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
Cloudmark logo

Cloudmark

AGPL-3.0
30,224 stars

Cloud-based bookmark manager that lets you save, categorize, and access your web favorites from any device with smart organization features

Replaces: Pocket Evernote Raindrop
Bookmark It logo

Bookmark It

AGPL-3.0
30,224 stars

Open-source bookmark manager with timeline view, one-click saving, categorization, and sharing features. Free plan available with pro upgrades.

Replaces: Pocket Raindrop Readwise Reader
Capd logo

Capd

MIT
30,224 stars

Private macOS app for saving web pages, text, links, and images locally with full-text search, OCR, and a CLI, no account or cloud required.

Replaces: Pocket Raindrop Pinboard
Faved logo

Faved

MIT
30,224 stars

A private, open-source bookmark manager for power users and large libraries, with a powerful, clutter-free UI.

Replaces: Pocket Raindrop Readwise Reader
Linkding logo

Linkding

MIT
30,224 stars

Minimal, fast bookmark manager with automatic metadata fetching, archiving, multi-user support, and browser extensions. Easy Docker setup with SQLite.

Replaces: Pocket Raindrop Readwise Reader
Linkwarden logo

Linkwarden

AGPL-3.0
30,224 stars

Open-source platform to collect, organize, and preserve webpages with powerful collaboration features

Replaces: Pocket Raindrop Readwise Reader
Readeck logo

Readeck

Open Source
30,224 stars

Personal content hub for saving articles, videos, and images. Features highlighting, transcripts, e-book export, and smart organization tools.

Replaces: Pocket Raindrop Readwise Reader
Wallabag logo

Wallabag

MIT
30,224 stars

Self-hosted web article archiving tool that extracts content for comfortable reading. Import from Pocket, Instapaper. Open source with API access.

Replaces: Pocket Raindrop Readwise Reader
Vaultwarden logo

Vaultwarden

AGPL-3.0
29,676 stars

Unofficial Bitwarden-compatible server written in Rust, built for self-hosting on low-resource hardware without sacrificing client compatibility.

Replaces: 1Password LastPass Proton Pass
Penpot logo

Penpot

MPL-2.0
27,809 stars

Design, prototype, and hand off to developers in one platform. Supports design systems, tokens, flexible layouts, and AI workflows with real CSS/HTML output.

Replaces: Canva Miro Figma
n8n logo

n8n

Open Source
25,324 stars

Build automated workflows connecting 500+ apps, write custom code, and deploy AI agents with full visibility into every decision. Self-hostable or cloud.

Replaces: Make Zapier Pipedream
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
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
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
LiveKit logo

LiveKit

Apache-2.0
22,000 stars

Build, test, deploy, and scale voice and video AI agents with an open source framework, inference gateway, telephony integrations, and full observability.

Replaces: Voiceflow Vapi Retell
Docmost logo

Docmost

AGPL-3.0
22,000 stars

Self-hosted wiki platform for enterprise teams with real-time collaboration, built-in AI, SSO, RBAC permissions, and compliance support for ITAR, FedRAMP, and…

Replaces: Notion Obsidian Confluence
Karakeep logo

Karakeep

AGPL-3.0
20,288 stars

Self-hostable bookmark manager that saves links, notes, images, and PDFs, then automatically tags and organizes them using AI for faster retrieval.

Replaces: Pocket Raindrop Readwise Reader
Modulz logo

Modulz

MIT
19,465 stars

Radix Primitives is an open-source UI component library for building high-quality, accessible design systems and web apps. Maintained by @workos.. Code-based tool for designing and prototyping

Replaces: Figma
Hackatime logo

Hackatime

MIT
19,463 stars

Free, open-source coding time tracker compatible with VS Code, JetBrains IDEs, vim, emacs and more. No limits, no paywalls - your data stays yours forever.

Replaces: WakaTime Code Time
Ziit logo

Ziit

AGPL-3.0
19,463 stars

Monitor your coding sessions, analyze productivity patterns, and gain insights into your development workflow with comprehensive time tracking statistics.

Replaces: WakaTime RescueTime Code Time
Botpress logo

Botpress

MIT
18,313 stars

A comprehensive platform for creating AI agents with intuitive tools, extensive integrations, and enterprise-grade features powered by the latest language…

Replaces: Manychat Voiceflow Rasa
Typebot logo

Typebot

Open Source
18,313 stars

Design, build, and deploy interactive chatbots with a visual editor. Integrate easily and collect data effortlessly.

Replaces: Manychat Voiceflow Rasa
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
Thunderbird for Android logo

Thunderbird for Android

Apache-2.0
17,987 stars

Android email client from the Thunderbird project with unified inbox, multiple account support, OpenPGP encryption, and no ads or data tracking.

Replaces: Gmail Microsoft Outlook Spark Mail
Hyvor Relay logo

Hyvor Relay

AGPL-3.0
16,912 stars

Self-hosted email API alternative to AWS SES & Mailgun. Open-source AGPL-3.0 with enterprise features, automated deliverability, and cloud version coming 2026.

Replaces: Resend SendGrid Mailgun
Sessy logo

Sessy

Open Source
16,912 stars

Track SES deliveries, bounces, opens and clicks in a self-hosted dashboard with real-time search, analytics and reputation monitoring.

Replaces: Resend SendGrid Mailgun
Open-Notebook logo

Open-Notebook

MIT
16,707 stars

Combines AI summarization, podcast generation, and multi-format content ingestion for researchers and students who want to keep their data private.

Replaces: NotebookLM ChatPDF Roam Research
Vrite logo

Vrite

AGPL-3.0
16,357 stars

A powerful platform for technical writing, offering real-time collaboration, version control, and seamless integrations.

Replaces: Mintlify GitBook
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
Zotero logo

Zotero

Open Source
16,000 stars

Reference manager that captures sources from the web, organizes them with tags and collections, and generates citations in 9,000+ styles for Word…

Replaces: Mendeley Paperpile RefWorks
CoMaps logo

CoMaps

Apache-2.0
15,845 stars

Offline navigation app for hiking, biking, and driving. No tracking, no data collection, community-driven maps. Works without internet connection.

Replaces: Google Maps Apple Maps Bing Maps
OSMAnd logo

OSMAnd

Open Source
15,845 stars

Comprehensive offline navigation app with detailed maps, turn-by-turn guidance, and specialized routing for hiking, cycling, and walking worldwide.

Replaces: Google Maps Apple Maps Bing Maps
Harper logo

Harper

Apache-2.0
15,224 stars

Open source grammar checker that analyzes your writing quickly while keeping your data completely private and secure on your device.

Replaces: Grammarly
BleachBit logo

BleachBit

GPL-3.0
15,021 stars

BleachBit frees disk space & protects privacy by deleting cache, cookies, history & temp files from Firefox, Chrome & more. Open source for Linux/Windows.

Replaces: CCleaner CleanMyMac AppCleaner
Mole logo

Mole

GPL-3.0
15,021 stars

Native macOS app that cleans caches, uninstalls apps with leftovers, maps disk usage, and shows live system metrics. One-time purchase, lifetime updates.

Replaces: CCleaner CleanMyMac AppCleaner
LanguageTool logo

LanguageTool

LGPL-2.1
15,000 stars

Check grammar, punctuation, and spelling errors instantly with AI-powered technology. Supports 30+ languages with browser extensions and desktop apps.

Replaces: Grammarly
Pearcleaner logo

Pearcleaner

Open Source
15,000 stars

Mac app uninstaller that finds and removes associated files, orphaned leftovers, and development artifacts across macOS 13 and later.

Replaces: CCleaner CleanMyMac AppCleaner
Typerelay logo

Typerelay

AGPL-3.0
14,699 stars

Text expander that replaces typed abbreviations with saved replies, signatures, and snippets across macOS, Windows, and Linux.

Replaces: TextExpander Text Blaze PhraseExpress
Mailspring logo

Mailspring

GPL-3.0
14,169 stars

Desktop email client for Mac, Windows, and Linux with unified inbox, read receipts, link tracking, send later, grammar checking, and contact enrichment.

Replaces: Apple Mail Microsoft Outlook Spark Mail
2FAS logo

2FAS

GPL-3.0
13,443 stars

Open-source authenticator and password manager that stores 2FA tokens and passwords locally on your device, with zero-knowledge encryption and no account…

Replaces: 1Password LastPass Microsoft Authenticator
Inbox Zero logo

Inbox Zero

AGPL-3.0
13,000 stars

Automates Gmail and Outlook with AI-drafted replies, bulk unsubscribe, cold email blocking, attachment filing, and inbox analytics for individuals and teams.

Replaces: Superhuman Mail Canary Mail Fyxer
FluidVoice logo

FluidVoice

GPL-3.0
13,000 stars

Free, open-source macOS dictation app that transcribes speech locally, polishes output with an on-device AI model, and adapts tone to whichever app you're…

Replaces: Wispr Flow Superwhisper Typeless
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
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
PairDrop logo

PairDrop

GPL-3.0
12,000 stars

Share files instantly between devices using peer-to-peer technology. No registration, installation, or configuration required. Works cross-platform.

Replaces: WeTransfer Apple AirDrop Send Anywhere
LocalSend logo

LocalSend

Apache-2.0
11,733 stars

Free, open-source file sharing tool for nearby devices. Cross-platform support with end-to-end encryption, no registration required, automatic device discovery.

Replaces: Apple AirDrop Send Anywhere
ChatbotX logo

ChatbotX

MIT
10,599 stars

Open source agentic chat marketing platform you can self-host, white-label, and resell. Automate omnichannel conversations across WhatsApp, Messenger…

Replaces: Manychat Intercom Wati
OpenWispr logo

OpenWispr

MIT
10,000 stars

Dictation app powered by OpenAI Whisper and NVIDIA Parakeet. Runs locally on macOS, Windows, and Linux with zero data retention and 100+ language support.

Replaces: Wispr Flow Superwhisper Typeless
Anarlog logo

Anarlog

MIT
9,700 stars

Records system audio without joining your call, then turns rough notes into editable summaries. Audio, transcripts, and notes stay as local files.

Replaces: Granola Jamie AI Otter.ai
Tuta logo

Tuta

GPL-3.0
8,100 stars

Tuta offers encrypted email, calendar and contacts with quantum-resistant security, protecting your privacy without ads or tracking.

Replaces: Gmail Google Workspace Apple Mail
Collabora Online logo

Collabora Online

Open Source
8,035 stars

Powerful online document editor with Microsoft Office compatibility. Integrate into your infrastructure or use trusted hosting partners for secure team…

Replaces: Microsoft Word Microsoft 365 Microsoft Excel
LibreOffice logo

LibreOffice

GPL-3.0
8,035 stars

Complete free office suite compatible with Microsoft formats (.doc, .docx, .xls, .xlsx, .ppt, .pptx). Open source alternative with regular updates.

Replaces: Microsoft Word Microsoft 365 Microsoft Office
ONLYOFFICE Docs logo

ONLYOFFICE Docs

AGPL-3.0
8,035 stars

Open-source online editor for documents, spreadsheets, presentations, and PDFs. Features real-time collaboration, AI integration, and accessibility tools.

Replaces: Microsoft 365 Google Workspace Zoho
Roundcube logo

Roundcube

GPL-3.0
7,300 stars

PHP-based webmail client with MIME support, address book, folder management, threaded views, PGP encryption, and a plugin API for self-hosted email.

Replaces: Gmail Microsoft Outlook
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
CryptPad logo

CryptPad

AGPL-3.0
7,072 stars

Open-source collaboration suite offering encrypted document editing, file sharing, and team workspaces with complete privacy protection.

Replaces: Microsoft Word Microsoft 365 Microsoft Excel
VoiceInk logo

VoiceInk

GPL-3.0
7,000 stars

Privacy-first dictation app for Apple Silicon Macs that transcribes speech locally, cleans up output with AI, and auto-switches settings per app.

Replaces: Wispr Flow Superwhisper Typeless
Organic Maps logo

Organic Maps

Apache-2.0
6,121 stars

Free, open-source offline maps app with detailed trails, turn-by-turn navigation, and zero tracking. Perfect for hikers, cyclists, and travelers seeking…

Replaces: Google Maps Apple Maps Bing Maps
Macro Mail logo

Macro Mail

AGPL-3.0
6,000 stars

An AI-powered email client that combines inbox management, chat, tasks, and AI agents in one shared workspace, built for keyboard-driven workflows.

Replaces: Gmail Apple Mail Superhuman Mail
Khoj logo

Khoj

AGPL-3.0
5,672 stars

Self-hostable AI assistant that connects to your docs and the web, lets you build agents, schedule automations, and run research with verifiable citations.

Replaces: Claude ChatGPT Perplexity
Postal logo

Postal

MIT
5,572 stars

Run your own mail delivery infrastructure with a web interface, webhooks, IP pools, and spam filtering integrations for inbound and outbound email.

Replaces: Resend SendGrid Mailgun
21st.dev logo

21st.dev

MIT
5,544 stars

npm for design engineers: largest marketplace of shadcn/ui-based React Tailwind components, blocks and hooks. The NPM for Design Engineers

Replaces: Landingfolio
SolidTime logo

SolidTime

AGPL-3.0
5,124 stars

Seamlessly track time across multiple projects, generate insightful reports, and optimize your open source contributions.

Replaces: Clockify Toggl Harvest
TimeScribe logo

TimeScribe

GPL-3.0
5,124 stars

Advanced time tracking and productivity analytics tool that captures detailed work patterns, generates comprehensive reports, and helps optimize workflow…

Replaces: Clockify Toggl WakaTime
Wakapi logo

Wakapi

MIT
5,124 stars

Open-source, self-hosted time tracking solution for developers. Analyze coding habits, improve productivity, and visualize progress.

Replaces: Clockify Toggl Harvest
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
Sol logo

Sol

MIT
4,615 stars

A modern macOS launcher that provides instant access to applications, utilities, and system functions through an elegant and efficient interface.

Replaces: Raycast Alfred
ActivityWatch logo

ActivityWatch

MPL-2.0
4,467 stars

Free open-source time tracker that automatically monitors your device usage. Cross-platform support with local data storage for complete privacy.

Replaces: StayFree WakaTime RescueTime
Zen logo

Zen

MIT
4,300 stars

Free, open-source desktop app that blocks ads, trackers, and surveillance scripts across all browsers and apps on Windows, macOS, and Linux.

Replaces: AdGuard NextDNS
IronCalc logo

IronCalc

Apache-2.0
4,200 stars

IronCalc is an open-source, Rust-powered spreadsheet engine with .xlsx support, 300+ functions, and bindings for JavaScript and Python.

Replaces: Microsoft Excel Google Sheets
Ryot logo

Ryot

GPL-3.0
3,700 stars

Ryot is a versatile platform for effortlessly tracking media, fitness, and more, replacing manual methods like spreadsheets.

Replaces: Notion Google Keep
Deta Surf logo

Deta Surf

Apache-2.0
3,600 stars

A browser that doubles as a personal notebook, letting you research, summarize, and take notes on web pages, PDFs, and videos without switching apps.

Replaces: NotebookLM Comet Browser Roam Research
Ueli logo

Ueli

MIT
3,191 stars

A keyboard-driven launcher that helps you quickly find and open applications, files, and bookmarks across Windows, macOS, and Linux

Replaces: Raycast Alfred
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
Cozy logo

Cozy

AGPL-3.0
2,546 stars

Open-source personal cloud that automatically gathers all your data from third-party services. French-hosted with privacy-first design, no ads, and seamless…

Replaces: 1Password LastPass Keeper
Ray.so logo

Ray.so

MIT
2,400 stars

Turn your code into beautiful images. Choose from a range of syntax colors, hide or show the background, and toggle between a dark and light window.

Replaces: Carbon
Tonkatsu Box logo

Tonkatsu Box

MIT
2,171 stars

Cross-platform collection manager for retro games, movies, TV shows, anime, manga, visual novels, and books with tier lists, visual boards, and import/export.

Replaces: TV Time Simkl Trakt.tv
Chalk.ist logo

Chalk.ist

MIT
1,800 stars

Create beautiful, customizable images of your source code with ease, perfect for presentations, documentation, and social media sharing.

Replaces: Carbon
Amical logo

Amical

MIT
1,600 stars

Open source AI dictation app that transforms speech to text with context-aware formatting. Fast, accurate transcription for meetings, notes, and hands-free…

Replaces: Wispr Flow Superwhisper Typeless
Aegis Authenticator logo

Aegis Authenticator

GPL-3.0
1,563 stars

Android app for managing two-factor authentication tokens with encrypted storage, biometric unlock, flexible backups, and import/export from major 2FA apps.

Replaces: Microsoft Authenticator Google Authenticator Authy
Showly logo

Showly

GPL-3.0
1,500 stars

Android and iOS app for tracking TV shows and movies, managing watchlists, and syncing viewing history with Trakt.tv across devices.

Replaces: TV Time Simkl Trakt.tv
Totum logo

Totum

Open Source
1,500 stars

Business database for non-programmers

Replaces: AirTable
Athens Research logo

Athens Research

Open Source
1,500 stars

Knowledge graph for research and notetaking

Replaces: Roam Research
Bangle.io logo

Bangle.io

Open Source
1,500 stars

A rich note note taking web app that works on top of your locally saved Markdown files

Replaces: Notion
Boost Note logo

Boost Note

Open Source
1,500 stars

Collaborative workspace for developer teams

Replaces: Notion
Dendron logo

Dendron

Open Source
1,500 stars

Knowledge base plugin for VS Code

Replaces: Roam Research
Notabase logo

Notabase

Open Source
1,500 stars

Powerful and easy-to-use note-taking app for networked thinking

Replaces: Notion Roam Research
Trilium.cc logo

Trilium.cc

Open Source
1,500 stars

Personal knowledge base

Replaces: Evernote Onenote
Focalboard logo

Focalboard

Open Source
1,500 stars

Alternative to Trello, Notion, and Asana

Replaces: Trello Notion Asana
SeriesGuide logo

SeriesGuide

Open Source
1,468 stars

Android app for tracking TV shows and movies you're watching, have watched, or plan to watch, powered by TMDb data.

Replaces: TV Time Simkl Trakt.tv
XWiki logo

XWiki

LGPL-2.1
1,300 stars

XWiki is a flexible, feature-rich wiki software that helps organizations structure and share knowledge efficiently.

Replaces: Notion Obsidian Confluence
Linguist logo

Linguist

BSD-3-Clause
1,100 stars

Full-featured browser extension for translating web pages, text, and subtitles with offline mode, personal dictionary, and custom translator support.

Replaces: Google Translate DeepL
Freeter logo

Freeter

GPL-3.0
1,000 stars

Organize projects, tasks, and resources in customizable workspaces. Boost productivity with a unified interface for all your work.

Replaces: Monday Todoist ClickUp
VoiceTypr logo

VoiceTypr

AGPL-3.0
740 stars

Dictate into any app on Mac or Windows using on-device AI models. One-time purchase, 99+ languages, no subscription required.

Replaces: Wispr Flow Superwhisper Typeless
Splitpro logo

Splitpro

MIT
690 stars

Free, open-source expense sharing app with multi-currency support, unequal splits, and receipt uploads. Import from Splitwise and enjoy PWA functionality.

Replaces: Splitwise
Jarvis logo

Jarvis

MIT
668 stars

Free, open-source macOS voice assistant that transcribes speech, applies AI transformations, and controls apps hands-free. No subscription, no training…

Replaces: Wispr Flow Superwhisper Typeless
Twake Mail logo

Twake Mail

AGPL-3.0
665 stars

Open source professional email solution with PGP encryption, JMAP protocol, AI-powered responses, and advanced antispam protection. Control your data privately.

Replaces: Gmail Apple Mail Microsoft Outlook
Paralino logo

Paralino

AGPL-3.0
78 stars

Share your real-time location with family and friends using end-to-end encryption, geofence alerts, travel history, and multi-device tracking.

Replaces: Life360 Google Location Sharing Geozilla
MDMA logo

MDMA

MIT
72 stars

Markdown Document with Mounted Applications, the open-source format that turns AI responses into interactive documents. Forms, tables, approval gates and…

Replaces: Notion Retool
Espanso logo

Espanso

GPL-3.0
54 stars

Cross-platform text expander that replaces typed keywords with full snippets, templates, dates, emojis, or script output across any app.

Replaces: TextExpander Text Blaze PhraseExpress
BlitzRecorder logo

BlitzRecorder

AGPL-3.0
53 stars

Mac app that records your screen and camera together, auto-detects pauses for one-click cutting, and exports in 4K with no watermark or account required.

Replaces: Loom Screen Studio ScreenFlow

Frequently Asked Questions: Open Source Productivity & Utilities

What are the best open source Productivity & Utilities tools in 2026?

The highest-ranked open-source software in Productivity & Utilities is ByteChef with over 209,291 GitHub stars. Other leading tools include CodeZero, Windmill, ActivePieces, Automatisch. All are vetted for production self-hosting.

Can I self-host Productivity & Utilities 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 Productivity & Utilities 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 Productivity & Utilities software replace?

Open-source tools in this category replace proprietary commercial platforms including Make, Zapier, Workato, Relay.app, Zoho Flow, Azure Logic Apps, Retool, Pipedream, IFTTT, Airplane. Switching gives your team 100% data custody, security control, and zero recurring seat costs.

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