Discover the best open-source software you can self-host. We track thousands of projects across GitHub and rank them by stars, activity, and community adoption. Whether you are looking for a replacement for a proprietary SaaS product or exploring new tools, you will find curated options organized by category, license, and popularity.
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From the blog
View all →- The Self-Hosted Rug Pull TrackerJun 18, 2026
Best FOSS alternatives to popular SaaS products
View all 71 alternatives →Browse by Platform
AI & LLM Tools
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Best software by GitHub Stars
OpenClaw
385.5k
OpenClaw is a personal AI assistant that runs on the user's own devices and connects to messaging channels, voice, and a live canvas interface.
Claws & ClankersSelf Hosting SolutionsAI Agents+2
2 Containers
hermes-agent
227.1k
Hermes Agent is a self-improving AI agent with a built-in learning loop, terminal UI, and messaging gateway for chatting and automating work across platforms.
Artificial IntelligenceAI AgentsAI Coding Assistant+2
2 Containers
n8n
199.8k
n8n is a fair-code platform for building and deploying AI agents and workflow automation with a visual canvas, custom code, and 1500+ integrations.
Automation ToolsPermissive LicenseNot FOSS+5
Single ContainerOpen CoreNot FOSS
opencode
194.8k
An open source AI coding agent.
Artificial IntelligenceAI Coding AssistantPermissive License+3
AutoGPT
186.3k
AutoGPT is a platform for creating, deploying, and managing continuous AI agents that automate complex workflows.
Artificial IntelligenceAutomation ToolsPermissive License+2
13 ContainersOpen Core
Ollama
178.0k
Ollama is a tool for running open models locally and exposing them through a REST API for apps, agents, and integrations.
Artificial IntelligenceLocal LLMsGenerative Artificial Intelligence Genai+3
Langflow
152.9k
Langflow is a platform for building and deploying AI-powered agents and workflows with a visual builder, API deployment, and MCP server support.
Low Code DevelopmentAutomation ToolsModel Context Protocol+2
11 Containers
Dify.ai
151.7k
An open-source platform for building, testing, and operating LLM-powered applications with workflows, RAG, agents, and observability.
Low Code DevelopmentArtificial IntelligenceFOSS with Issues+6
36 ContainersOpen CoreFOSS with Issues
Open-WebUI
148.2k
Open WebUI is a self-hosted AI platform for chatting with LLMs, managing RAG, and building custom model workflows, designed to run entirely offline.
Artificial IntelligenceAI InterfacesLocal LLMs+7
2 ContainersOpen CoreFOSS with Issues
Claude Code
140.6k
Claude Code is an agentic coding tool that runs in the terminal and helps with coding tasks, code explanation, and git workflows using natural language commands.
Artificial IntelligenceAI Coding AssistantAI Harness+2
Cloud Required
Excalidraw
129.1k
An open source virtual hand-drawn style whiteboard for creating diagrams and wireframes.
Diagramming ToolsKnowledge ManagementPermissive License
Single Container
ComfyUI
124.7k
ComfyUI is a modular node-based AI engine for creating images, video, 3D, audio, and other content with fine-grained control over models and parameters.
Artificial IntelligenceAI Media GenerationCopyleft License+2
Freemium