GPL-3.0 Licensed Open Source Software
A curated collection of the 58 best open source software licensed under GPL-3.0.
Professional raw photo processing made free and powerful
Stars
4,242Last commit
1 day agoLicense
GPL-3.0
Free, cross-platform raw image processor with 32-bit floating point engine, advanced demosaicing algorithms, and professional-grade editing tools for photographers.
Open Source Alternative to:
Design, prototype, and test user experiences with ease
Stars
2,741Last commit
9 days agoLicense
GPL-3.0
Quant-UX is an open-source tool for creating interactive prototypes, conducting user tests, and analyzing results to improve UX design.
Open Source Alternative to:
Serverless team chat over Tor, no phone number needed
Stars
2,659Last commit
1 day agoLicense
GPL-3.0
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 leaks.
Open Source Alternative to:
Simplify your workflow with offline Kanban boards
Stars
2,067Last commit
3 days agoLicense
GPL-3.0
Kanri is a free, open-source personal Kanban app that works offline, offering a modern and simple experience while respecting your privacy.
Open Source Alternative to:
Open source monitoring for complex IT infrastructure
Stars
2,241Last commit
9 hours agoLicense
GPL-3.0
Monitor networks, servers, and cloud environments with flexible open-source solution. Custom checks, fast alerts, and complete infrastructure control.
Open Source Alternative to:
Transform any song into karaoke with AI-powered vocals
Stars
1,507Last commit
22 hours agoLicense
GPL-3.0
AI-powered karaoke software that separates vocals from any song, transcribes lyrics with word-level sync, scores your pitch in real-time, and includes dynamic backgrounds.
Open Source Alternative to:
Self-hosted password vault built for teams and compliance
Stars
1,837Last commit
9 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:
Secure collaboration platform with end-to-end encryption
Stars
2,555Last commit
10 months agoLicense
GPL-3.0
A comprehensive collaboration platform offering end-to-end encrypted messaging, file sharing, and video calls with enterprise-grade security and compliance features.
Open Source Alternative to:
Local-first 2FA authenticator and password manager
Stars
1,541Last commit
22 hours 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
2,954Last commit
22 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:
Track TV shows and movies, synced with Trakt.tv
Stars
1,467Last commit
6 days agoLicense
GPL-3.0
Android and iOS app for tracking TV shows and movies, managing watchlists, and syncing viewing history with Trakt.tv across devices.
Open Source Alternative to:
Transform your time tracking into actionable insights
Stars
919Last commit
29 days agoLicense
GPL-3.0
Advanced time tracking and productivity analytics tool that captures detailed work patterns, generates comprehensive reports, and helps optimize workflow efficiency.
Open Source Alternative to:
Fast, secure browsing with powerful organization features
Stars
1,081Last commit
5 months agoLicense
GPL-3.0
A modern browser combining minimalist design with smart features like profiles, spaces, and command palette. Full Chrome extension support and privacy-focused browsing.
Open Source Alternative to:
Your personal workspace organizer for maximum productivity
Stars
1,029Last commit
5 months agoLicense
GPL-3.0
Organize projects, tasks, and resources in customizable workspaces. Boost productivity with a unified interface for all your work.
Open Source Alternative to:
Deploy web apps with automated CI/CD and full infrastructure control
Stars
265Last commit
1 day agoLicense
GPL-3.0
Self-hosted platform for web applications offering automated CI/CD pipelines, multiple environments, and Git integration - with 47% infrastructure cost savings.
Open Source Alternative to:
Secure, scalable chat server for modern applications
Stars
161Last commit
15 days agoLicense
GPL-3.0
Open source chat server with end-to-end encryption, clustering support, and comprehensive messaging features for building real-time communication apps
Open Source Alternative to:
Postiz – The All-in-One agentic social media scheduling tool
Postiz
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