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.
Open source metrics collection, storage, and alerting
Stars
66,735Last commit
12 hours agoLicense
Apache-2.0
Pull-based monitoring system with a multi-dimensional data model, PromQL query language, built-in alerting, and a time series database built for cloud native environments.
Open Source Alternative to:
Multi-model AI desktop client with local-first privacy
Stars
52,951Last commit
7 hours agoLicense
AGPL-3.0
Desktop AI client for Windows, macOS, and Linux that connects 300+ models from 50+ providers, with local storage, a built-in knowledge base, and autonomous agent mode.
Open Source Alternative to:
Open-source backend platform for rapid app development
Stars
57,761Last commit
7 hours agoLicense
BSD-3-Clause
Open-source development platform with built-in backend infrastructure, web hosting, and security features. Scale applications using your preferred programming languages.
Open Source Alternative to:
High-performance terminal with GPU acceleration
Stars
66,035Last commit
9 days agoLicense
Apache-2.0
Modern cross-platform terminal emulator with OpenGL acceleration, extensive configuration options, and vi mode support for enhanced productivity.
Open Source Alternative to:
Self-hosted AI runtime for text, voice, vision, and agents
Stars
49,925Last commit
7 hours agoLicense
MIT
Run LLMs, speech, image generation, and autonomous agents on your own hardware with an OpenAI-compatible API and 60+ swappable backends.
Open Source Alternative to:
Personal AI agent for messaging apps, containerized
Stars
31,005Last commit
17 hours agoLicense
MIT
Self-hosted AI agent that connects to WhatsApp, Telegram, Slack, and a dozen more messaging apps, running each agent in an isolated Docker container with credential injection via a secure vault.
Open Source Alternative to:
Open source payment orchestrator for global transactions
Stars
Stars growing over the last 30 days45,407Last commit
7 hours agoLicense
Apache-2.0
A unified payment infrastructure that connects multiple payment processors through a single API integration, enabling global payment processing
Open Source Alternative to:
Team chat, project management, and AI agents in one place
Stars
Stars growing over the last 30 days36,420Last commit
8 hours agoLicense
Apache-2.0
Workspace that combines team chat, project planning, and git management with AI agents that collaborate alongside your team on shared context.
Open Source Alternative to:
Free instant whiteboard with real-time collaboration
Stars
51,069Last commit
16 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:
AI-powered research notebook with full privacy control
Stars
40,540Last commit
5 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:
AI-powered coding made simple and efficient
Stars
Stars growing quickly over the last 30 days29,825Last commit
7 hours agoLicense
MIT
Advanced AI coding assistant that enhances development workflow with intelligent code suggestions, automated debugging, and seamless integration.
Open Source Alternative to:
Self-hosted AI agent with 70+ providers and 30+ channels
Stars
33,039Last commit
20 hours agoLicense
Apache-2.0
A single Rust binary that runs a personal AI agent on your own hardware, connecting to 70+ LLM providers and 30+ messaging channels with built-in sandboxing and cryptographic tool receipts.
Open Source Alternative to:
Free database manager for SQL databases and beyond
Stars
52,194Last commit
20 hours agoLicense
Apache-2.0
Cross-platform database management tool for exploring, editing, and querying SQL databases including MySQL, PostgreSQL, SQLite, MariaDB, and more.
Open Source Alternative to:
Design database diagrams and generate SQL scripts instantly
Stars
40,120Last commit
18 hours agoLicense
AGPL-3.0
Free online database diagram editor with SQL generation. Create ER diagrams, visualize relationships, export scripts, and reverse engineer schemas - no signup required.
Open Source Alternative to:
Empower your website with privacy-focused analytics
Stars
39,636Last commit
1 day agoLicense
MIT
A lightweight, open-source alternative to Google Analytics that respects user privacy and provides valuable insights.
Open Source Alternative to:
Press a key, speak, release. Text appears instantly.
Stars
Stars growing over the last 30 days34,537Last commit
14 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 LLM engineering platform for AI-powered applications
Stars
Stars growing over the last 30 days36,359Last commit
12 hours agoLicense
MIT
Langfuse provides tracing, evaluations, prompt management, and analytics to debug and improve LLM applications.
Open Source Alternative to:
Cut and trim video without re-encoding or quality loss
Stars
45,177Last commit
10 hours agoLicense
GPL-2.0
Desktop app for lossless video and audio editing. Cut, trim, merge, and remux files in seconds without re-encoding, using FFmpeg under the hood.
Open Source Alternative to:
Privacy-first metasearch across 270+ sources
Stars
Stars growing over the last 30 days38,806Last commit
18 hours agoLicense
AGPL-3.0
Self-hostable metasearch engine that aggregates results from 270+ sources without tracking or profiling users, with optional JavaScript and Tor support.
Open Source Alternative to:
Fast, AI-native web browser built for automation and scraping
Stars
Stars growing over the last 30 days36,942Last commit
14 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:
Open source AI coding agent for the terminal and IDE
Stars
28,699Last commit
7 hours agoLicense
Apache-2.0
Terminal-based AI coding agent that reads your codebase, edits files and runs commands, with support for Qwen, OpenAI, Anthropic, Gemini and local models.
Open Source Alternative to:
Your personal cloud OS for simple, elegant home servers
Stars
37,363Last commit
27 days agoLicense
Apache-2.0
CasaOS is an open-source personal cloud system that makes it easy to set up and manage your own home server
Open Source Alternative to:
End-to-end open source software delivery platform
Stars
38,690Last commit
1 day agoLicense
Apache-2.0
Streamline code delivery with an open-source CI/CD platform featuring Git integration, fast pipelines, and hosted development environments.
Open Source Alternative to:
Organize terminal sessions with built-in layouts, tabs, and panes
Stars
35,821Last commit
1 day agoLicense
MIT
A terminal multiplexer that organizes your workflow with intuitive layouts, tabs, and panes. Includes batteries for seamless terminal workspace management.
Open Source Alternative to:
Multi-model AI workspace with org-wide skill sharing
Stars
24,243Last commit
11 hours agoLicense
MIT
Desktop app for teams to run AI agents across 50+ LLMs, share skills and MCP servers org-wide, and automate browser tasks with your own keys.
Open Source Alternative to:
Open source infrastructure as code tool
Stars
30,600Last commit
1 day agoLicense
MPL-2.0
A community-driven, truly open-source fork of Terraform for managing cloud infrastructure through code.
Open Source Alternative to:
Open blueprints for governed, always-on AI agents
Stars
22,834Last commit
7 hours agoLicense
Apache-2.0
Collection of open blueprints combining models, agent harnesses, and runtime controls to deploy specialized autonomous AI agents with policy-based guardrails.
Open Source Alternative to:
Secure, private photo storage and sharing solution
Stars
29,570Last commit
10 hours agoLicense
AGPL-3.0
End-to-end encrypted cloud storage for photos and videos, offering privacy, security, and seamless cross-device syncing.
Open Source Alternative to:
Open-source vector database for AI search and retrieval
Stars
29,570Last commit
1 day agoLicense
Apache-2.0
Open-source vector database designed for AI applications. Store, search, and retrieve embeddings with semantic similarity matching and metadata filtering.
Open Source Alternative to:
GPU-accelerated terminal built for power users
Stars
35,414Last commit
1 day agoLicense
GPL-3.0
High-performance terminal emulator with GPU acceleration, graphics support, and advanced scripting capabilities for developers and system administrators.
Open Source Alternative to:
Automate workflows with no-code integration platform
Stars
25,204Last 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:
Zero Trust networking with WireGuard-based secure connectivity
Stars
30,186Last commit
9 hours agoLicense
Unknown
Open source platform combining WireGuard overlay networks with Zero Trust access controls. Features SSO, MFA, device posture checks, and granular policies for secure remote connectivity.
Open Source Alternative to:
Private messaging with end-to-end encryption
Stars
29,527Last commit
2 days agoLicense
AGPL-3.0
Secure messaging app with state-of-the-art encryption, voice/video calls, group chats, and file sharing. No ads, trackers, or data collection.
Open Source Alternative to:
Cost-effective log aggregation that indexes labels, not full text
Stars
29,053Last commit
7 hours agoLicense
AGPL-3.0
Horizontally scalable, multi-tenant log aggregation system that stores and queries logs using label-based indexing instead of full-text indexing, keeping storage costs low.
Open Source Alternative to:
Branded short links with analytics and conversion tracking
Stars
24,935Last commit
13 hours agoLicense
AGPL-3.0
Link management platform for marketing teams with custom domains, UTM builder, A/B testing, geo-targeting, QR codes, and real-time conversion analytics.
Open Source Alternative to:
Affiliate marketing platform built for SaaS companies
Stars
24,935Last commit
13 hours agoLicense
AGPL-3.0
Run affiliate, influencer, and referral programs with flexible reward structures, real-time attribution, and automated global payouts.
Open Source Alternative to:
Spaced repetition flashcards that remember for you
Stars
32,268Last commit
1 day agoLicense
Unknown
Flashcard app using spaced repetition to schedule reviews at the exact moment you're likely to forget, so you retain more with less study time.
Open Source Alternative to:
Build unlimited AI apps locally with zero vendor lock-in
Stars
22,050Last commit
2 days agoLicense
Apache-2.0
Create full-stack AI applications using any model or tool. Run entirely on your machine with complete privacy, flexibility, and control over your code.
Open Source Alternative to:
Run coding agents from your phone, desktop, or terminal
Stars
Stars growing quickly over the last 30 days21,877Last commit
8 hours agoLicense
Apache-2.0
Self-hosted orchestrator for coding agents like Claude Code, Codex, and Cursor, controlled from phone, desktop, web, or CLI.
Open Source Alternative to:
AI assistant that enhances enterprise knowledge management
Stars
23,029Last commit
2 days agoLicense
GPL-3.0
Open-source AI solution combining RAG pipelines, workflow automation, and multi-model support for intelligent enterprise knowledge management and customer service.
Open Source Alternative to:
Automate any website workflow with AI and computer vision
Stars
23,264Last commit
7 hours agoLicense
AGPL-3.0
Transform manual browser tasks into automated workflows using AI. Handle complex forms, CAPTCHAs, 2FA, and data extraction across any website at scale.
Open Source Alternative to:
Local-first, Git-native personal knowledge base with AI
Stars
20,238Last commit
7 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:
Openlane – Open-source, developer-first platform for automated compliance, risk management, and built-in Trust Center.
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Openlane