Open Source Productivity & Utilities
A curated collection of the best open source everyday desktop and mobile utilities for notes, tasks, files, email, passwords, automation, screen capture, and keeping a machine tidy and fast..
See also:Office SuitesEmail & CommunicationBrowsers & ExtensionsTime & Task ManagementBookmark & Content ManagementPassword & Secret ManagementScreen Capture & RecordingFile Management & SyncSystem Cleanup & OptimizationStars growing over the last 30 daysMaps & NavigationInput & DictationStars growing over the last 30 daysRemote Desktop & AccessDesign & VisualizationPersonal Finance ManagementNote Taking & Knowledge ManagementAutomation
Multi-channel notification infrastructure for apps
Stars
40,190Last commit
10 hours agoLicense
Unknown
Open-source platform for building in-app, email, push, SMS, and chat notifications with a unified API, workflow engine, and embeddable inbox component.
Open Source Alternative to:
Structured control layer for customer-facing AI agents
Stars
18,308Last commit
14 hours agoLicense
Apache-2.0
A conversational AI server that manages agent behavior through context-aware guidelines, keeping responses consistent, auditable, and aligned at scale.
Open Source Alternative to:
Local voice dictation with AI enhancement for macOS
Stars
Stars growing over the last 30 days6,906Last commit
3 days agoLicense
GPL-3.0
Privacy-first dictation app for Apple Silicon Macs that transcribes speech locally, cleans up output with AI, and auto-switches settings per app.
Open Source Alternative to:
Keyboard-first email client with AI, chat, and tasks
Stars
Stars growing quickly over the last 30 days4,872Last commit
8 hours agoLicense
AGPL-3.0
An AI-powered email client that combines inbox management, chat, tasks, and AI agents in one shared workspace, built for keyboard-driven workflows.
Open Source Alternative to:
Markdown docs wired into tasks, email, and agents
Stars
Stars growing quickly over the last 30 days4,872Last commit
8 hours agoLicense
AGPL-3.0
Collaborative markdown documents with real-time CRDT editing, AI agent cursors, mention linking, and built-in properties tied to your tasks, channels, and email.
Open Source Alternative to:
Visual workflow automation with code flexibility and AI agents
Stars
208,398Last commit
8 hours agoLicense
Unknown
Build automated workflows connecting 500+ apps, write custom code, and deploy AI agents with full visibility into every decision. Self-hostable or cloud.
Open Source Alternative to:
Collaborative whiteboard with a hand-drawn aesthetic
Stars
134,434Last commit
13 hours agoLicense
MIT
Virtual whiteboard for sketching diagrams, flowcharts, and wireframes with a distinctive hand-drawn look. Real-time collaboration built in.
Open Source Alternative to:
Self-hosted remote desktop you fully control
Stars
126,725Last commit
17 hours agoLicense
AGPL-3.0
Cross-platform remote desktop software that runs on your own servers, giving you full data control as a direct alternative to TeamViewer and AnyDesk.
Open Source Alternative to:
Share files securely across all devices without servers
Stars
Stars growing over the last 30 days95,340Last commit
3 days agoLicense
Apache-2.0
Free, open-source file sharing tool for nearby devices. Cross-platform support with end-to-end encryption, no registration required, automatic device discovery.
Open Source Alternative to:
Mac cleaner, app manager, and system monitor in one
Stars
Stars growing over the last 30 days72,582Last commit
15 hours agoLicense
GPL-3.0
Native macOS app that cleans caches, uninstalls apps with leftovers, maps disk usage, and shows live system metrics. One-time purchase, lifetime updates.
Open Source Alternative to:
AI workspace for docs, projects, and wikis you control
Stars
77,681Last commit
3 days agoLicense
AGPL-3.0
Open source collaborative workspace combining notes, databases, and AI with full data ownership, offline support, and self-hosting options.
Open Source Alternative to:
Docs, whiteboards, and databases in one privacy-first workspace
Stars
73,777Last commit
19 hours agoLicense
MIT
An open-source, local-first knowledge base that merges structured docs, infinite whiteboards, databases, and AI into a single workspace for teams and creators.
Open Source Alternative to:
An independent browser engine built from scratch, not a fork
Stars
66,644Last commit
8 hours agoLicense
BSD-2-Clause
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.
Open Source Alternative to:
Free, open-source software for video recording and live streaming
Stars
77,985Last commit
10 hours agoLicense
GPL-2.0
OBS Studio offers high-quality video recording and live streaming capabilities, supporting multiple platforms and providers.
Open Source Alternative to:
Self-hosted timeline for quick notes, logs, and snippets
Stars
64,025Last commit
1 day agoLicense
MIT
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 server.
Open Source Alternative to:
Self-hosted Bitwarden server that runs lean on your hardware
Stars
69,538Last commit
2 days agoLicense
AGPL-3.0
Unofficial Bitwarden-compatible server written in Rust, built for self-hosting on low-resource hardware without sacrificing client compatibility.
Open Source Alternative to:
Open-source UI design and prototyping for product teams
Stars
61,546Last commit
12 hours agoLicense
MPL-2.0
Design, prototype, and hand off to developers in one platform. Supports design systems, tokens, flexible layouts, and AI workflows with real CSS/HTML output.
Open Source Alternative to:
A full desktop environment that runs in your browser
Stars
43,863Last commit
9 hours agoLicense
AGPL-3.0
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.
Open Source Alternative to:
Encrypted note-taking that syncs across all your devices
Stars
56,850Last commit
10 hours agoLicense
Unknown
Cross-platform note-taking app with end-to-end encryption, Markdown support, web clipping, and sync via Dropbox, OneDrive, or Joplin Cloud.
Open Source Alternative to:
Free instant whiteboard with real-time collaboration
Stars
51,057Last commit
11 hours agoLicense
Unknown
Virtual whiteboard that works instantly on any device, no signup required, with real-time multiplayer collaboration built in.
Open Source Alternative to:
Privacy-focused browser with powerful customization
Stars
45,193Last commit
1 day agoLicense
MPL-2.0
A Firefox-based browser offering enhanced privacy, split views, and extensive customization options for a personalized browsing experience.
Open Source Alternative to:
AI-powered research notebook with full privacy control
Stars
40,508Last commit
4 days agoLicense
MIT
Combines AI summarization, podcast generation, and multi-format content ingestion for researchers and students who want to keep their data private.
Open Source Alternative to:
Privacy-first knowledge management with block-level linking
Stars
46,902Last commit
11 hours agoLicense
AGPL-3.0
Personal knowledge management system with WYSIWYG block editing, bidirectional links, spaced repetition flashcards, a relational database, and end-to-end encrypted sync.
Open Source Alternative to:
Privacy-first knowledge base that connects your notes
Stars
45,347Last commit
9 hours agoLicense
AGPL-3.0
Local-first, open-source knowledge management tool with bidirectional linking, outlines, flashcards, PDF annotations, and whiteboards for building a connected second brain.
Open Source Alternative to:
Press a key, speak, release. Text appears instantly.
Stars
Stars growing over the last 30 days34,457Last commit
19 hours agoLicense
MIT
Cross-platform desktop app that transcribes your voice into any text field using a keyboard shortcut, with all processing done locally on your machine.
Open Source Alternative to:
Open-source financial terminal for data-driven insights
Stars
Stars growing over the last 30 days32,965Last commit
11 days agoLicense
AGPL-3.0
Comprehensive financial data platform offering economic insights, market analysis, and portfolio management tools
Open Source Alternative to:
Fast, AI-native web browser built for automation and scraping
Stars
Stars growing over the last 30 days36,915Last commit
13 hours agoLicense
AGPL-3.0
Purpose-built headless browser that delivers 10x faster performance and 10x lower memory usage compared to Chrome headless for web automation and AI workflows.
Open Source Alternative to:
Your personal distributed filesystem
Stars
39,286Last commit
11 days agoLicense
Apache-2.0
A cross-platform file manager that unifies your devices into a seamless, organized digital workspace.
Open Source Alternative to:
Fast, collaborative wiki for teams who need organized docs
Stars
41,043Last commit
9 hours agoLicense
BUSL-1.1
Team knowledge base with real-time collaboration, AI-powered search, Slack integration, and self-hosting support for internal docs and wikis.
Open Source Alternative to:
AI second brain for research, automation, and personal agents
Stars
37,799Last commit
3 months agoLicense
AGPL-3.0
Self-hostable AI assistant that connects to your docs and the web, lets you build agents, schedule automations, and run research with verifiable citations.
Open Source Alternative to:
Secure cloud collaboration platform for organizations
Stars
37,257Last commit
8 hours agoLicense
AGPL-3.0
Nextcloud offers on-premises file sync, sharing and collaboration platform with advanced security and privacy features.
Open Source Alternative to:
Powerful screen capture and file sharing tool for Windows
Stars
40,350Last commit
22 hours agoLicense
GPL-3.0
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 destinations.
Open Source Alternative to:
Simple, fast, and secure push notifications for all
Stars
35,018Last commit
9 hours agoLicense
Apache-2.0
A lightweight, open-source solution for sending real-time notifications to your devices, with end-to-end encryption and no sign-up required.
Open Source Alternative to:
Save links, notes, and images. AI tags them for you.
Stars
29,919Last commit
2 days agoLicense
AGPL-3.0
Self-hostable bookmark manager that saves links, notes, images, and PDFs, then automatically tags and organizes them using AI for faster retrieval.
Open Source Alternative to:
Track your net worth across accounts and assets
Stars
54,212Last commit
1 year agoLicense
AGPL-3.0
Personal finance tracker that consolidates accounts, investments, and assets into a single net worth dashboard with goal tracking and projections.
Open Source Alternative to:
Local-first envelope budgeting with full data ownership
Stars
29,701Last commit
15 hours agoLicense
MIT
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.
Open Source Alternative to:
Automate workflows with no-code integration platform
Stars
25,187Last commit
10 hours agoLicense
MIT
Open-source integration platform for seamless workflow automation. Connect apps, automate tasks, and boost productivity effortlessly.
Open Source Alternative to:
Screen recorder with instant sharing and a built-in editor
Stars
Stars growing over the last 30 days23,597Last commit
8 hours agoLicense
AGPL-3.0
Record your screen in Instant, Studio, or Screenshot mode, then share via a link with auto-generated transcripts, chapters, and summaries.
Open Source Alternative to:
Local-first, Git-native personal knowledge base with AI
Stars
20,161Last commit
8 hours agoLicense
AGPL-3.0
A free, open source note-taking app built on plain Markdown files, Git version control, and direct AI model integration. No account required.
Open Source Alternative to:
Procedural vector editor that runs in your browser, no signup needed
Stars
27,700Last commit
8 hours agoLicense
Apache-2.0
A free, open source vector graphics editor built around nondestructive, node-based design. Runs locally in the browser, exports SVG, PNG, and JPG.
Open Source Alternative to:
Cross-platform, secure password manager
Stars
29,421Last commit
9 hours agoLicense
GPL-3.0
KeePassXC is an open-source password manager that securely stores and manages sensitive information across Windows, macOS, and Linux.
Open Source Alternative to:
Chromium browser built for sharing with AI agents
Stars
Stars growing quickly over the last 30 days19,010Last commit
1 day agoLicense
MIT
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 browsing.
Open Source Alternative to:
Sent – Messaging Infrastructure for Developers. One API for SMS, WhatsApp, and RCS across 190+ countries.
Bright Data
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Stellar Hosted