Open Source Projects using GitHub
A curated collection of the 330 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.
Self-hosted SEO platform for keyword, backlink, and rank tracking
Stars
22,305Last commit
3 days agoLicense
MIT
Manage keyword research, backlink analysis, competitor monitoring, and rank tracking without expensive SaaS subscriptions. Self-hostable, MIT-licensed, uses DataForSEO.
Open Source Alternative to:
Structured control layer for customer-facing AI agents
Stars
18,299Last commit
3 months 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:
An agentic CRM that keeps records current automatically
Stars
11,041Last commit
23 days agoLicense
MIT
Open source CRM with AI agents that read your inbox, enrich contacts and companies, schedule follow-ups, and build new agents from plain-language descriptions.
Open Source Alternative to:
Local voice dictation with AI enhancement for macOS
Stars
6,656Last 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:
Markdown docs wired into tasks, email, and agents
Stars
4,544Last commit
10 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:
A self-building CRM powered by your email
Stars
4,544Last commit
10 hours agoLicense
AGPL-3.0
Automatically creates and enriches contacts, companies, and deal threads from your team's email. No data entry, no imports, no admin overhead.
Open Source Alternative to:
Keyboard-first email client with AI, chat, and tasks
Stars
4,544Last commit
10 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:
Task management with GitHub sync and AI agents for devs
Stars
4,544Last commit
10 hours agoLicense
AGPL-3.0
Task manager built for engineering teams, combining status tracking, priority management, GitHub integration, and AI agents that can close tasks automatically.
Open Source Alternative to:
Team chat with email, tasks, and docs in one workspace
Stars
4,544Last commit
10 hours agoLicense
AGPL-3.0
Team chat app with inline threads, mention-based sharing, a unified inbox for chat and email, and an AI agent that works across your full workspace.
Open Source Alternative to:
No-code database and app builder you can self-host
Stars
6,072Last commit
2 days agoLicense
MIT
Open-source platform for building databases, internal apps, and automated workflows without writing code. Available on cloud or self-hosted.
Open Source Alternative to:
Private AI chat with zero-access encryption
Stars
5,624Last commit
1 day agoLicense
GPL-3.0
AI chat assistant from Proton that stores conversations with zero-access encryption, never logs chats, and never uses your data to train models.
Open Source Alternative to:
Live stock quotes, charts, and AI-scored news in your terminal
Stars
62Last commit
3 days agoLicense
MIT
Terminal dashboard for stock quotes, candlestick charts, AI-scored news, SEC Form 4 insider activity, and earnings reads. Free tier, no card required.
Open Source Alternative to:
An AI assistant that acts, not just answers
Stars
391,264Last commit
10 hours agoLicense
MIT
A personal AI assistant that connects to your existing chat apps and handles real tasks like email, calendar, and flight check-ins on your behalf.
Open Source Alternative to:
Desktop AI agent with persistent memory across platforms
Stars
251,036Last commit
10 hours agoLicense
MIT
Cross-platform desktop agent from Nous Research that connects to Telegram, Discord, Slack, WhatsApp, and more, with persistent memory, scheduling, and isolated sandboxing.
Open Source Alternative to:
AI coding agent for terminal, IDE, and desktop
Stars
211,667Last commit
10 hours agoLicense
MIT
Open source AI coding agent that works in your terminal, IDE, or desktop app, supporting 75+ LLM providers with no code storage.
Open Source Alternative to:
Build and run AI agents that handle recurring work for you
Stars
187,645Last commit
17 hours agoLicense
Other
Platform for building, deploying, and running AI agents that automate repeatable digital work across research, outreach, content, and support without writing code.
Open Source Alternative to:
Run open-source LLMs locally on your own machine
Stars
182,143Last commit
12 hours agoLicense
MIT
Runs open-source language models locally with a simple setup, plus optional cloud access for larger models when local hardware isn't enough.
Open Source Alternative to:
Run LLMs locally with minimal setup, maximum hardware support
Stars
130,258Last commit
10 hours agoLicense
MIT
C/C++ inference engine for large language models, supporting quantization, multi-GPU, Apple Silicon, and an OpenAI-compatible server across a wide range of hardware.
Open Source Alternative to:
Minimal terminal coding agent you can fully customize
Stars
112,265Last commit
17 hours agoLicense
MIT
Terminal-based coding agent with a minimal core, 15+ LLM providers, tree-structured session history, and a TypeScript extension system for building your own workflows.
Open Source Alternative to:
Org chart, budgets, and governance for AI agent teams
Stars
96,860Last commit
10 hours agoLicense
MIT
Manages teams of AI agents across business functions with org charts, goal alignment, cost tracking, ticket tracing, and board-level governance controls.
Open Source Alternative to:
Self-hosted remote desktop you fully control
Stars
125,080Last commit
11 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:
High-throughput, memory-efficient serving engine for LLMs
Stars
93,141Last commit
12 hours agoLicense
Apache-2.0
Inference and serving engine for large language models, built for speed and hardware efficiency with an OpenAI-compatible API and support for a wide range of open models.
Open Source Alternative to:
Run multiple AI coding agents in parallel, side by side
Stars
84,584Last commit
10 hours agoLicense
MIT
Agent Development Environment that runs Claude Code, Codex, Gemini, and other CLI agents in parallel across isolated git worktrees, with terminals, browser, diff review, and git tools built in.
Open Source Alternative to:
Local control smart home automation with privacy first
Stars
91,246Last commit
10 hours agoLicense
Apache-2.0
Open source home automation platform supporting 1000+ devices with local control, powerful automations, custom dashboards, and voice assistant. No cloud required.
Open Source Alternative to:
LLM-ready web crawler built for AI data pipelines
Stars
84,722Last commit
9 days agoLicense
Apache-2.0
Open-source web crawler and scraper that produces clean, structured output optimized for LLMs, RAG pipelines, and AI agents. Supports async crawling, CSS/XPath/LLM extraction, and stealth browser control.
Open Source Alternative to:
High-performance code editor built for speed and AI
Stars
91,260Last commit
23 hours agoLicense
GPL-3.0
A Rust-built code editor from the creators of Atom and Tree-sitter, combining native performance with multiplayer collaboration and deep AI integration.
Open Source Alternative to:
Hyperextensible, Lua-powered Vim-based text editor
Stars
102,766Last commit
11 hours agoLicense
Unknown
A modernized Vim fork with built-in LSP, Lua scripting, Tree-sitter parsing, and an async plugin architecture that works the same across every platform.
Open Source Alternative to:
Open-source AI coding agent for your editor and terminal
Stars
69,808Last commit
2 days agoLicense
Apache-2.0
AI coding agent that runs inside VS Code and the terminal, supporting multi-file edits, bash execution, and any LLM provider via bring-your-own-key.
Open Source Alternative to:
Mac cleaner, app manager, and system monitor in one
Stars
69,211Last commit
12 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:
Text-based diagramming that renders in code and docs
Stars
90,527Last commit
19 hours agoLicense
MIT
Create flowcharts, sequence diagrams, Gantt charts, and more using a simple Markdown-like syntax that renders anywhere.
Open Source Alternative to:
Coding agent that runs on local and open-weight models
Stars
68,503Last commit
2 days agoLicense
Apache-2.0
Coding agent that lets LLMs write and execute code, manage files, and control your computer using local or low-cost models.
Open Source Alternative to:
Project management for teams mixing humans and AI agents
Stars
51,901Last commit
13 hours agoLicense
Unknown
Open-source platform that manages coding agents as team members, with task queues, skill libraries, runtime monitoring, and a unified activity feed.
Open Source Alternative to:
Real-time monitoring for systems and applications
Stars
80,788Last commit
17 hours agoLicense
GPL-3.0
Powerful, efficient, and user-friendly monitoring solution for servers, containers, and applications with instant insights and alerts.
Open Source Alternative to:
Headless CMS with REST and GraphQL APIs out of the box
Stars
73,276Last commit
2 days agoLicense
MIT
TypeScript headless CMS that generates REST and GraphQL APIs from your content model, with a no-code builder, plugin system, and full self-hosting support.
Open Source Alternative to:
A modern terminal built around AI coding agents
Stars
65,355Last commit
1 day agoLicense
AGPL-3.0
Terminal built for running AI coding agents like Claude Code, Codex, and Gemini CLI, with shared context, interactive code review, and multi-session management.
Open Source Alternative to:
General-purpose AI agent for code, workflows, and more
Stars
54,923Last commit
2 days agoLicense
Apache-2.0
Local AI agent with a desktop app, CLI, and API that connects to 15+ LLM providers and 70+ extensions for code, research, automation, and data tasks.
Open Source Alternative to:
Run open-source AI models privately on your own device
Stars
77,389Last commit
1 year agoLicense
MIT
GPT4All runs open-source language models locally on Windows, macOS, and Linux with no cloud dependency, keeping your data on your machine.
Open Source Alternative to:
Deploy apps, databases, and services to your own server
Stars
62,567Last commit
10 hours agoLicense
Apache-2.0
Self-hostable deployment platform that lets you deploy apps, databases, and 280+ one-click services to any server via SSH, with Git integration and automatic SSL.
Open Source Alternative to:
Fast GPU-accelerated terminal with native UI design
Stars
61,819Last commit
13 hours agoLicense
MIT
Experience blazing-fast terminal performance with GPU acceleration and platform-native UI. Cross-platform compatibility meets modern design.
Open Source Alternative to:
Open source metrics collection, storage, and alerting
Stars
66,353Last commit
10 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
52,353Last commit
10 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
57,556Last commit
10 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:
Sent – Messaging Infrastructure for Developers. One API for SMS, WhatsApp, and RCS across 190+ countries.
Sent
InfluxDB
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