Free
OpenCode
Open SourceAI Coding Assistants · AI for Developers
Open-source AI coding agent for the terminal, model-agnostic.
ai-codingagentcliopen-source
Discover the 43 best open-source tools for ai for developers. Community-driven, transparent source code with permissive licenses. Curated, compared, and updated for developers.
| Tool | Pricing | Platforms | Top Strength | Link |
|---|---|---|---|---|
| OpenCode | free | cli | Open-source AI coding agent for the terminal, model-agnostic. | Details → |
| Aider | free | cli | AI pair programming in your terminal, works with Git. | Details → |
| Cline | freemium | extension | Open-source autonomous coding agent as a VS Code extension. | Details → |
| Roo Code | free | extension | Community-driven AI dev agent for VS Code with multiple modes. | Details → |
| Continue | freemium | extension | Open-source AI code assistant you can point at any model. | Details → |
| OpenHands | freemium | web | Open-source AI software development agent platform. | Details → |
| Mistral | freemium | web | European AI lab offering open and commercial models with an API. | Details → |
| DeepSeek | freemium | web | AI research lab with strong open-weight reasoning models and API. | Details → |
| Qwen | free | web | Alibaba's open-weight model family with multilingual strengths. | Details → |
| Hugging Face | freemium | web | The GitHub of ML: models, datasets and Spaces demos in one hub | Details → |
Showing top 10 of 43. Browse the full grid below.
AI Coding Assistants · AI for Developers
Open-source AI coding agent for the terminal, model-agnostic.
AI Coding Assistants · AI for Developers
AI pair programming in your terminal, works with Git.
AI Coding Assistants · AI for Developers
Open-source autonomous coding agent as a VS Code extension.
AI Coding Assistants · AI for Developers
Community-driven AI dev agent for VS Code with multiple modes.
AI Coding Assistants · AI for Developers
Open-source AI code assistant you can point at any model.
AI Coding Assistants · AI for Developers
Open-source AI software development agent platform.
Models & LLM APIs · AI for Developers
European AI lab offering open and commercial models with an API.
Models & LLM APIs · AI for Developers
AI research lab with strong open-weight reasoning models and API.
Models & LLM APIs · AI for Developers
Alibaba's open-weight model family with multilingual strengths.
Models & LLM APIs · AI for Developers
The AI community hub: models, datasets, spaces and libraries.
Models & LLM APIs · AI for Developers
Run open LLMs locally with one command.
Models & LLM APIs · AI for Developers
High-throughput, memory-efficient LLM inference and serving engine.
Models & LLM APIs · AI for Developers
Open-source LLM gateway: one API for 100+ providers.
Agent & LLM Frameworks · AI for Developers
Framework for building LLM applications with agents and chains.
Agent & LLM Frameworks · AI for Developers
Data framework for connecting LLMs to your data (RAG).
Agent & LLM Frameworks · AI for Developers
Open-source LLM observability: traces, evals and prompt management.
Agent & LLM Frameworks · AI for Developers
Open-source tool for testing and evaluating LLM prompts and models.
MCP · AI for Developers
The open standard connecting AI models to tools and data sources.
Vector Databases · AI for Developers
Open-source vector database written in Rust, with cloud offering.
Vector Databases · AI for Developers
Open-source vector database with hybrid search and modules.
Vector Databases · AI for Developers
Highly scalable open-source vector database for billion-scale search.
Vector Databases · AI for Developers
Open-source embedding database designed for local-first AI apps.
Models & LLM APIs · AI for Developers
Self-hosted ChatGPT-style UI for Ollama and OpenAI-compatible APIs.
Models & LLM APIs · AI for Developers
Open-source, multi-provider chat UI with agents and artifacts.
Models & LLM APIs · AI for Developers
Open-source AI chat framework with plugins and agent marketplace.
Agent & LLM Frameworks · AI for Developers
All-in-one desktop + docker app for chatting with your documents.
Agent & LLM Frameworks · AI for Developers
Open-source LLM app platform: agents, workflows and RAG (trending).
Agent & LLM Frameworks · AI for Developers
Drag-and-drop builder for LLM apps and agents on LangChain.
Agent & LLM Frameworks · AI for Developers
Fair-code workflow automation with native AI agent nodes.
Agent & LLM Frameworks · AI for Developers
Build stateful, multi-agent AI applications as graphs.
Agent & LLM Frameworks · AI for Developers
Framework for role-playing, autonomous AI agent teams.
Agent & LLM Frameworks · AI for Developers
Microsoft's framework for multi-agent AI conversations.
AI Coding Assistants · AI for Developers
Block's open-source extensible AI coding agent for the terminal.
Models & LLM APIs · AI for Developers
The C/C++ inference engine that runs LLMs everywhere, even laptops.
Agent & LLM Frameworks · AI for Developers
Node-graph UI for Stable Diffusion and other generative models.
Agent & LLM Frameworks · AI for Developers
The classic browser UI for Stable Diffusion image generation.
Models & LLM APIs · AI for Developers
OpenAI's open-source speech recognition model.
AI Coding Assistants · AI for Developers
Google's open-source AI agent for the terminal (trending).
AI Coding Assistants · AI for Developers
OpenAI's open-source coding agent for your terminal.
Agent & LLM Frameworks · AI for Developers
The most comprehensive open guide to prompting techniques.
Models & LLM APIs · AI for Developers
Open-source ChatGPT alternative that runs LLMs fully offline on your machine, with an OpenAI-compatible API.
AI Coding Assistants · AI for Developers
Self-hosted AI coding assistant — code completion on your own hardware with your own models, no data leaves.
Agent & LLM Frameworks · AI for Developers
Open-source LLM observability — logging, caching, rate limiting and cost tracking behind a one-line proxy.