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
Private workspace for notes, tasks, and databases
Stars
8,981Last commit
17 hours agoLicense
Unknown
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 central server.
Open Source Alternative to:
Self-hostable voice agent platform with full model control
Stars
Stars growing over the last 30 days5,940Last commit
1 day agoLicense
BSD-2-Clause
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 workflow builder.
Open Source Alternative to:
Secure email, calendar and contacts with end-to-end encryption
Stars
8,039Last commit
14 hours agoLicense
GPL-3.0
Tuta offers encrypted email, calendar and contacts with quantum-resistant security, protecting your privacy without ads or tracking.
Open Source Alternative to:
Self-hosted file sharing built for digital sovereignty
Stars
6,219Last commit
9 hours agoLicense
Apache-2.0
Self-hostable cloud file management and collaboration platform with an integrated office suite, zero-trust security, and GDPR compliance for teams and organizations.
Open Source Alternative to:
Secure collaboration with end-to-end encryption
Stars
8,026Last commit
17 hours agoLicense
AGPL-3.0
Open-source collaboration suite offering encrypted document editing, file sharing, and team workspaces with complete privacy protection.
Open Source Alternative to:
Browser-based IMAP webmail with a full email client feel
Stars
7,242Last commit
21 hours agoLicense
GPL-3.0
PHP-based webmail client with MIME support, address book, folder management, threaded views, PGP encryption, and a plugin API for self-hosted email.
Open Source Alternative to:
Complete office suite for documents, spreadsheets & more
Stars
7,042Last commit
1 day agoLicense
AGPL-3.0
Open-source online editor for documents, spreadsheets, presentations, and PDFs. Features real-time collaboration, AI integration, and accessibility tools.
Open Source Alternative to:
Programmable notes with queries, Lua scripting, and wiki links
Stars
Stars growing over the last 30 days6,374Last commit
2 days agoLicense
MIT
A self-hosted, browser-based note-taking system that turns plain Markdown pages into a queryable, scriptable knowledge base you control.
Open Source Alternative to:
The open-source, affordable email platform
Stars
5,540Last commit
2 days agoLicense
AGPL-3.0
Plunk unifies marketing, transactional, and broadcast emails into a single, complete solution for businesses of all sizes.
Open Source Alternative to:
Intercept, modify, and debug HTTP(S) requests effortlessly
Stars
6,754Last commit
19 hours agoLicense
AGPL-3.0
A powerful browser extension and desktop app for developers to manipulate network requests, debug APIs, and improve web app testing
Open Source Alternative to:
Clean your system and free disk space
Stars
Stars growing over the last 30 days7,222Last commit
1 day agoLicense
GPL-3.0
BleachBit frees disk space & protects privacy by deleting cache, cookies, history & temp files from Firefox, Chrome & more. Open source for Linux/Windows.
Open Source Alternative to:
Secure, encrypted notes for your digital life
Stars
6,681Last commit
15 hours agoLicense
AGPL-3.0
Cross-platform note-taking app with end-to-end encryption, offline access, and powerful organization features for privacy-conscious users.
Open Source Alternative to:
Lightweight self-hosted bookkeeping with AI receipt scanning
Stars
5,812Last commit
13 hours agoLicense
MIT
A privacy-first personal finance app with two-level accounts, multi-currency support, AI receipt recognition, and broad data import from formats like GnuCash and Firefly III.
Open Source Alternative to:
Pay per email sent, not for contact storage
Stars
4,754Last commit
5 days agoLicense
AGPL-3.0
Open source email platform for transactional and marketing emails. Self-host or use cloud service with transparent pricing - pay only for emails sent.
Open Source Alternative to:
Secure password management for teams
Stars
6,186Last commit
4 days agoLicense
AGPL-3.0
Open source password manager focused on security, collaboration and privacy for organizations
Open Source Alternative to:
Privacy-first browser built for power users
Stars
6,387Last commit
11 days agoLicense
Unknown
Firefox-based browser with built-in ad blocking, oblivious DNS, zero telemetry, tree-style tabs, and no AI features sending your data anywhere.
Open Source Alternative to:
Navigate anywhere with detailed offline maps and GPS
Stars
6,105Last commit
10 hours agoLicense
Unknown
Comprehensive offline navigation app with detailed maps, turn-by-turn guidance, and specialized routing for hiking, cycling, and walking worldwide.
Open Source Alternative to:
Effortless time tracking for teams and projects
Stars
5,095Last commit
2 days agoLicense
AGPL-3.0
Open-source time tracking solution for businesses of all sizes. Manage projects, track billable hours, and generate insightful reports.
Open Source Alternative to:
A spreadsheet engine you can embed, self-host, or run in the browser
Stars
4,225Last commit
10 hours agoLicense
Apache-2.0
IronCalc is an open-source, Rust-powered spreadsheet engine with .xlsx support, 300+ functions, and bindings for JavaScript and Python.
Open Source Alternative to:
System-wide ad-blocking and privacy protection, no extensions needed
Stars
4,293Last commit
15 hours agoLicense
MIT
Free, open-source desktop app that blocks ads, trackers, and surveillance scripts across all browsers and apps on Windows, macOS, and Linux.
Open Source Alternative to:
Free office suite with Microsoft compatibility
Stars
Stars growing over the last 30 days4,552Last commit
9 hours agoLicense
GPL-3.0
Complete free office suite compatible with Microsoft formats (.doc, .docx, .xls, .xlsx, .ppt, .pptx). Open source alternative with regular updates.
Open Source Alternative to:
Track coding time effortlessly, gain insights instantly
Stars
4,462Last commit
2 days agoLicense
MIT
Open-source, self-hosted time tracking solution for developers. Analyze coding habits, improve productivity, and visualize progress.
Open Source Alternative to:
Browser and notebook combined with local-first AI
Stars
3,610Last commit
2 months agoLicense
Apache-2.0
A browser that doubles as a personal notebook, letting you research, summarize, and take notes on web pages, PDFs, and videos without switching apps.
Open Source Alternative to:
Quick access to apps and files with keyboard shortcuts
Stars
4,610Last commit
19 hours agoLicense
MIT
A keyboard-driven launcher that helps you quickly find and open applications, files, and bookmarks across Windows, macOS, and Linux
Open Source Alternative to:
Open-source document editing suite for secure collaboration
Stars
3,383Last commit
13 hours agoLicense
Unknown
Powerful online document editor with Microsoft Office compatibility. Integrate into your infrastructure or use trusted hosting partners for secure team collaboration.
Open Source Alternative to:
Track your life, your way
Stars
3,646Last commit
9 hours agoLicense
GPL-3.0
Ryot is a versatile platform for effortlessly tracking media, fitness, and more, replacing manual methods like spreadsheets.
Open Source Alternative to:
Fast and beautiful launcher for quick access to apps and tools
Stars
3,179Last commit
3 days agoLicense
MIT
A modern macOS launcher that provides instant access to applications, utilities, and system functions through an elegant and efficient interface.
Open Source Alternative to:
Create beautiful images of your code
Stars
2,366Last commit
9 days agoLicense
MIT
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.
Navigate anywhere offline with complete privacy
Stars
Stars growing over the last 30 days2,184Last commit
12 hours agoLicense
Apache-2.0
Offline navigation app for hiking, biking, and driving. No tracking, no data collection, community-driven maps. Works without internet connection.
Open Source Alternative to:
Secure password manager with end-to-end encryption
Stars
2,936Last commit
20 hours agoLicense
AGPL-3.0
Open-source password manager with end-to-end encryption for passwords, credit cards, notes, and documents. Cross-platform sync with secure sharing capabilities.
Open Source Alternative to:
Open-source file storage with complete data sovereignty
Stars
Stars growing over the last 30 days1,942Last commit
14 hours agoLicense
AGPL-3.0
Secure, open-source platform for file storage, sharing, and collaboration. Host your data on your own infrastructure with full control and transparency.
Open Source Alternative to:
Secure, private, and decentralized file storage
Stars
2,541Last commit
15 hours agoLicense
AGPL-3.0
A peer-to-peer encrypted filesystem for secure file storage, sharing, and collaboration with end-to-end encryption and user-controlled data.
Open Source Alternative to:
Collaborative content creation for technical teams
Stars
2,005Last commit
12 days agoLicense
AGPL-3.0
A powerful platform for technical writing, offering real-time collaboration, version control, and seamless integrations.
Open Source Alternative to:
Enterprise file sync, share, and collaboration platform
Stars
2,164Last commit
12 hours agoLicense
Apache-2.0
Self-hostable file platform for enterprises needing data sovereignty, real-time document collaboration, and compliance with GDPR, HIPAA, and other regulations.
Open Source Alternative to:
Type 10x faster with AI-powered voice dictation
Stars
1,567Last commit
11 days agoLicense
MIT
Open source AI dictation app that transforms speech to text with context-aware formatting. Fast, accurate transcription for meetings, notes, and hands-free typing.
Open Source Alternative to:
Track your TV shows and movies on Android
Stars
2,167Last commit
8 days agoLicense
Unknown
Android app for tracking TV shows and movies you're watching, have watched, or plan to watch, powered by TMDb data.
Open Source Alternative to:
Self-hosted password vault built for teams and compliance
Stars
1,851Last commit
13 hours agoLicense
GPL-3.0
Collaborative password manager with folder-level access control, AES-256-GCM encryption, governance tools, and Linux password rotation, runs on your own servers.
Open Source Alternative to:
Effortlessly split expenses with friends and groups
Stars
1,474Last commit
3 days agoLicense
MIT
Free, open-source expense sharing app with multi-currency support, unequal splits, and receipt uploads. Import from Splitwise and enjoy PWA functionality.
Open Source Alternative to:
Secure self-hosted cloud storage with end-to-end encryption
Stars
Stars growing over the last 30 days1,538Last commit
2 days agoLicense
Unknown
Lightweight, self-hosted cloud storage built with Rust and Vue.js. Features end-to-end encryption, file sharing, search capabilities, and Docker deployment.
Open Source Alternative to:
Local-first 2FA authenticator and password manager
Stars
1,543Last commit
4 days agoLicense
GPL-3.0
Open-source authenticator and password manager that stores 2FA tokens and passwords locally on your device, with zero-knowledge encryption and no account required.
Open Source Alternative to:
Open-source personal finance management tool
Stars
2,951Last commit
26 days agoLicense
GPL-3.0
Self-hosted alternative to Mint and YNAB for budgeting and building wealth while maintaining full control of your financial data.
Open Source Alternative to:
Open-source knowledge management and collaboration platform
Stars
1,325Last commit
15 hours agoLicense
LGPL-2.1
XWiki is a flexible, feature-rich wiki software that helps organizations structure and share knowledge efficiently.
Open Source Alternative to:
Postiz – The All-in-One agentic social media scheduling tool
Windshift
Bright Data
Postiz