Open Source Projects using GitHub
A curated collection of the 344 best open source software using GitHub. Find the most popular and trending open source projects to learn from, contribute to, or use in your own projects.
GPU-accelerated terminal emulator with multiplexing across all platforms
Stars
29,333Last commit
6 days agoLicense
MIT
Cross-platform terminal emulator and multiplexer with GPU acceleration, true color support, and Lua configuration. Runs on Linux, macOS, Windows, FreeBSD, and NetBSD.
Open Source Alternative to:
Distributed tracing, metrics, logs, and GenAI monitoring in one
Stars
24,974Last commit
1 day agoLicense
Apache-2.0
Open source observability platform covering distributed tracing, metrics, logs, profiling, and LLM cost tracking across 10+ languages with eBPF support on Kubernetes.
Open Source Alternative to:
Chromium browser built for sharing with AI agents
Stars
Stars growing quickly over the last 30 days19,204Last commit
2 days 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:
Procedural vector editor that runs in your browser, no signup needed
Stars
27,712Last commit
7 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:
24/7 screen and audio recorder with AI memory search
Stars
22,055Last commit
1 day agoLicense
Other
Records your screen and microphone locally, transcribes meetings automatically, and exposes selected work context to compatible AI assistants through its MCP server and local API.
Open Source Alternative to:
Privacy-first browser with ad-blocking and no bloat
Stars
Stars growing over the last 30 days21,947Last commit
4 days agoLicense
GPL-3.0
Chromium-based desktop browser with default ad and tracker blocking, no analytics, native !bangs, split view, and full MV2 extension support.
Open Source Alternative to:
Zero trust network access that's better than VPN
Stars
23,202Last commit
1 day agoLicense
AGPL-3.0
Deploy zero trust access to infrastructure, self-hosted apps, and SaaS tools in days. Identity-aware security with seamless user experience.
Open Source Alternative to:
Create 2D and 3D games without coding, powered by AI assistance
Stars
Stars growing over the last 30 days27,990Last commit
8 hours agoLicense
Unknown
Free, open-source game engine with visual event system, AI tutor, and one-click publishing to Steam, iOS, Android, and web platforms.
Open Source Alternative to:
Agentic AI framework that runs, learns, and self-corrects
Stars
19,559Last commit
10 hours agoLicense
MIT
Autonomous AI agent framework that operates on its own sandboxed computer, creates tools dynamically, manages memory, and executes multi-step workflows with full transparency.
Open Source Alternative to:
Watch YouTube without Google tracking you or showing ads
Stars
Stars growing over the last 30 days25,631Last commit
1 day agoLicense
AGPL-3.0
Open source front-end for YouTube that strips out ads, tracking, and algorithmic distractions while letting you subscribe to channels and manage playlists.
Open Source Alternative to:
Free, open-source image editor built for Mac compositing
Stars
Stars growing quickly over the last 30 days17,824Last commit
9 hours agoLicense
MIT
Mac-native Photoshop alternative built around compositing and post-processing workflows, with layers, masks, blend modes, filters, and background removal.
Open Source Alternative to:
Lightning-fast, typo-tolerant search engine for all
Stars
27,038Last commit
4 days agoLicense
GPL-3.0
Open-source search solution offering blazing speed, typo tolerance, and effortless scalability for developers and businesses.
Open Source Alternative to:
Cross-platform terminal with AI built in
Stars
22,583Last commit
7 days agoLicense
Apache-2.0
Enhance your terminal with AI, file previews, and web browsing. Available on MacOS, Linux, and Windows.
Open Source Alternative to:
Self-hosted personal finance manager with double-entry bookkeeping
Stars
24,982Last commit
7 hours agoLicense
AGPL-3.0
Track transactions, budgets, and accounts with a double-entry system, multi-currency support, rule engine, and REST API. Fully self-hostable.
Open Source Alternative to:
Full-featured media center for your TV and beyond
Stars
21,378Last commit
9 hours agoLicense
Unknown
Plays videos, music, TV shows, photos, and games from a single interface, with live TV, PVR recording, and broad format support across devices.
Open Source Alternative to:
Collect, transform, and route logs and metrics in one tool
Stars
22,759Last commit
14 hours agoLicense
MPL-2.0
Rust-built observability pipeline tool that collects, transforms, and routes logs and metrics across 47 sources and 62 sinks with no runtime dependencies.
Open Source Alternative to:
Turn production traffic into regression tests, no code changes
Stars
18,728Last commit
8 hours agoLicense
Apache-2.0
Captures real API traffic and dependency calls via eBPF to generate tests and mocks automatically, then replays them in CI to catch regressions before they ship.
Open Source Alternative to:
Task manager with time tracking, focus mode, and deep work tools
Stars
Stars growing over the last 30 days23,114Last commit
8 hours agoLicense
MIT
Privacy-first task manager combining task lists, Kanban, Pomodoro timers, time tracking, and integrations with GitHub, GitLab, and Jira. No account required, works offline.
Open Source Alternative to:
Fast, secure, offline API client with Git integration
Stars
19,355Last commit
11 hours agoLicense
MIT
A modern API client offering local-only data storage, Git integration, plugin extensibility, and multi-protocol support for developers.
Open Source Alternative to:
Desktop multi-agent workforce for automating real tasks
Stars
15,653Last commit
11 hours agoLicense
Apache-2.0
Self-hostable desktop app that runs a coordinated team of AI agents to browse the web, manage files, execute terminal commands, and complete complex workflows.
Open Source Alternative to:
Visual project management with complete data control
Stars
21,131Last commit
8 hours agoLicense
MIT
Open-source Kanban board solution offering visual task management, self-hosting capabilities, and robust security features for teams and individuals.
Open Source Alternative to:
Privacy-first knowledge base with any AI model you choose
Stars
16,594Last commit
14 hours agoLicense
Apache-2.0
Self-hostable NotebookLM alternative that lets teams build searchable knowledge bases from diverse sources, with support for any LLM and no data limits.
Open Source Alternative to:
Build AI agents and RPA workflows without writing code
Stars
21,676Last commit
8 months agoLicense
Unknown
No-code platform for building AI agents and RPA workflows that automate repetitive business tasks across finance, HR, sales, and operations.
Open Source Alternative to:
Run dozens of AI coding agents in parallel on your machine
Stars
Stars growing over the last 30 days15,521Last commit
7 hours agoLicense
Elastic-2.0
macOS app that orchestrates multiple AI coding agents simultaneously, each in its own isolated Git worktree, so you can work on many tasks at once.
Open Source Alternative to:
High-performance API gateway with built-in LLM support
Stars
17,249Last commit
2 days agoLicense
Apache-2.0
Apache APISIX is an open-source API gateway built on NGINX and etcd, offering dynamic routing, 100+ plugins, load balancing, authentication, and traffic management for APIs and LLM workloads.
Open Source Alternative to:
Free offline machine translation API you can host yourself
Stars
17,170Last commit
1 day agoLicense
AGPL-3.0
Self-hosted machine translation API that works offline. Download, setup, and run your own translation server in minutes with complete privacy control.
Open Source Alternative to:
Open-source mail server with unlimited sending & AI tools
Stars
15,951Last commit
5 months agoLicense
AGPL-3.0
Self-hosted email marketing platform with unlimited sending, AI-powered email creation, real-time analytics, and no monthly fees. Complete SMTP solution.
Open Source Alternative to:
Professional audio editing made simple and free
Stars
18,822Last commit
2 days agoLicense
Unknown
Free, open-source audio editor and recorder for all platforms. Record, edit, mix and enhance audio with professional tools. Perfect for music, podcasts, and more.
Open Source Alternative to:
AI agent runtime with encrypted enclaves for your secrets
Stars
12,675Last commit
2 days agoLicense
Apache-2.0
Runs AI agents inside Trusted Execution Environments on NEAR AI Cloud, keeping credentials encrypted and invisible to the model at all times.
Open Source Alternative to:
High-performance time series database for metrics and logs
Stars
17,902Last commit
1 day agoLicense
Apache-2.0
Time series database and monitoring platform compatible with Prometheus, handling billions of metrics with lower resource usage than most alternatives.
Open Source Alternative to:
Open source headless commerce with REST API, no platform fees, built for B2B and marketplaces
Stars
15,773Last commit
7 hours agoLicense
BSD-3-Clause
Headless eCommerce platform with REST API, TypeScript SDK, and Next.js storefront. Handle B2B, multi-vendor marketplaces, and cross-border commerce. Self-hosted, open source, zero fees.
Open Source Alternative to:
Track time automatically with privacy-first design
Stars
19,359Last commit
3 days agoLicense
MPL-2.0
Free open-source time tracker that automatically monitors your device usage. Cross-platform support with local data storage for complete privacy.
Open Source Alternative to:
Common layer for composing and governing AI agents
Stars
Stars growing over the last 30 days11,021Last commit
7 hours agoLicense
Apache-2.0
Meta-harness that sits above Claude Code, Codex, and other AI agents to add policy enforcement, sandboxing, and real-time collaborative sessions.
Open Source Alternative to:
Secure cloud environments for enterprise AI agents
Stars
Stars growing over the last 30 days14,532Last commit
20 hours agoLicense
Apache-2.0
Provide AI agents with secure, isolated sandboxes featuring real-world tools, code execution, and enterprise-grade security. Trusted by 88% of Fortune 100 companies.
Open Source Alternative to:
Privacy-first offline maps for hiking, cycling & navigation
Stars
15,759Last commit
7 hours agoLicense
Apache-2.0
Free, open-source offline maps app with detailed trails, turn-by-turn navigation, and zero tracking. Perfect for hikers, cyclists, and travelers seeking privacy.
Open Source Alternative to:
Advanced terminal with modern features for Mac developers
Stars
18,214Last commit
7 hours agoLicense
GPL-2.0
Feature-rich terminal replacement for macOS with split panes, search, autocomplete, and extensive customization options for enhanced productivity.
Open Source Alternative to:
On-device voice dictation for macOS with adaptive AI
Stars
Stars growing over the last 30 days12,441Last commit
17 hours agoLicense
GPL-3.0
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 typing into.
Open Source Alternative to:
Zero Trust VPN solutions for secure business networking
Stars
14,720Last commit
17 hours agoLicense
Unknown
Secure remote access VPN solutions with zero trust network access. Self-hosted and cloud-managed options for businesses of all sizes. Trusted by 20,000+ organizations.
Open Source Alternative to:
Zero-knowledge encrypted notes that sync across all devices
Stars
14,824Last commit
20 hours agoLicense
GPL-3.0
End-to-end encrypted note-taking app with zero-knowledge architecture, cross-device sync, web clipper, and a self-hostable sync server.
Open Source Alternative to:
Secure, customizable authentication for your applications
Stars
15,333Last commit
2 days agoLicense
Unknown
Open-source authentication solution offering flexible, self-hosted user management with advanced features and easy integration.
Open Source Alternative to:
Ultra-fast data transformation for AI with lineage
Stars
11,747Last commit
9 hours agoLicense
Apache-2.0
Open-source ETL framework built in Rust for AI workloads. Features incremental processing, data lineage, and observability tools for semantic search and RAG applications.
Open Source Alternative to:
Client-side encryption for your cloud files
Stars
16,335Last commit
1 day agoLicense
GPL-3.0
Encrypts files and filenames locally before they reach Dropbox, Google Drive, OneDrive, or any other cloud, so only you hold the key.
Open Source Alternative to:
Openlane – Open-source, developer-first platform for automated compliance, risk management, and built-in Trust Center.
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Openlane