Open Source AI Tools in 2026 (137 tools)
Browse 137 open-source AI tools — self-hostable, with public source code or open model weights.
Open source
Open-source AI tools — products with publicly available source code, self-hostable infrastructure, or open model weights. Most are on GitHub or Hugging Face and can be inspected, modified, and deployed on your own infrastructure.
For each listing the badge marks license type where we have it. Click through to the tool page for the official repository link.
OPT
Open Pretrained Transformers (OPT) by Facebook is a suite of decoder-only pre-trained transformers. Announcement.…
Bloom
BLOOM by Hugging Face is a model similar to GPT-3 that has been trained on 46 different languages and 13 programming…
Llama
Meta's open source large language model.
Vicuna-13B
An open-source chatbot trained by fine-tuning LLaMA on user-shared conversations collected from ShareGPT.
Mistral
Cutting-edge open-weight LLMs by Mistral AI.
Grok
An LLM by xAI with open source and open weights.
Qwen
A series of LLMs independently developed by Alibaba Cloud.
DeepSeek
DeepSeek V3 and R1 series of LLMs by DeepSeek AI.
DeepSeek
Cutting-edge LLMs for enterprise, consumer, and scientific applications.
LibreChat
LibreChat is a free and open-source chat interface for assistant AIs. .
privateGPT
Ask questions to your documents without an internet connection, using the power of LLMs.
quivr
Dump all your files and chat with it using your generative AI second brain using LLMs & embeddings.
ChatGPT for Jupyter
Add various helper functions in Jupyter Notebooks and Jupyter Lab, powered by ChatGPT.
Open Notebook
An open source implementation of NotebookLM with more flexibility and features.
Screenpipe
An open-source tool for recording screen and audio activity with AI-powered search, automations, and support for…
STORM
An LLM-powered knowledge curation system that researches a topic and generates a full-length report with citations.
ASReview
Open-source AI-powered tool for systematic reviews, helping researchers screen large volumes of academic literature…
Local Deep Research
A deep research tool for searching academic sources, the web, and private documents with local or cloud LLMs.
GitHub Copilot
GitHub Copilot uses the OpenAI Codex to suggest code and entire functions in real-time, right from your editor.
PR-Agent
AI-powered tool for automated PR analysis, feedback, suggestions, and more.
TurboPilot
A self-hosted copilot clone which uses the library behind llama.cpp to run the 6 billion parameter Salesforce…
GPT-Code UI
An open source implementation of OpenAI's ChatGPT Code interpreter.
Open Interpreter
OpenAI's Code Interpreter in your terminal, running locally.
Continue
Open-source AI code assistant. Connect any model and any context to create custom autocomplete and chat experiences…
RooCode
An AI-powered autonomous coding agent integrated directly into VS Code.
Plandex
Open source, terminal-based AI programming engine for complex tasks.
Jupyter AI
An open-source, configurable AI assistant in Jupyter Notebook and JupyterLab that supports 100+ LLMs, including…
DataLine
An AI-driven data analysis and visualization tool.
aider
AI pair programming in your terminal, supporting multiple LLM providers.
Kilo
Open-source AI coding assistant for VS Code, JetBrains, and the CLI.
gpt4all
A chatbot trained on a massive collection of clean assistant data including code, stories, and dialogue.
LLM App
Open-source Python library to build real-time LLM-enabled data pipeline.
SymbolicAI
A neuro-symbolic framework for building applications with LLMs at the core.
Vanna.ai
An open-source Python RAG framework for SQL generation and related functionality.
agenta
An open-source end-to-end LLMOps platform for prompt engineering, evaluation, and deployment.
Gitingest
Turn any Git repository into a simple text digest of its codebase so it can be fed into any LLM.
Repomix
Pack your codebase into AI-friendly formats.
llama.cpp
Inference of Meta's LLaMA model (and others) in pure C/C++.
bitnet.cpp
Official inference framework for 1-bit LLMs, by Microsoft.
OpenRouter
A unified interface for LLMs.
Ludwig
A low-code framework for building custom AI models like LLMs and other deep neural networks.
Unsloth
A Python library for fine-tuning LLMs .
OpenLIT
Open-source GenAI and LLM observability platform native to OpenTelemetry with traces and metrics.
Helicone AI
Open-source LLM observability platform for logging, monitoring, and debugging AI applications.
Wren AI
An open-source text-to-SQL and generative BI agent with a semantic layer.
Opik
An open-source platform for tracing, evaluating, and monitoring LLM applications.
Langfuse
Open-source LLM engineering platform that helps teams collaboratively debug, analyze, and iterate on their LLM…
MLflow
An open-source platform for tracking ML experiments, evaluating models and prompts, deploying models, and adding LLM…
rehydra
A zero-trust SDK for anonymizing PII locally before sending prompts to LLMs and seamlessly rehydrating the response.
Agentset
An open-source platform for building and evaluating RAG and agentic applications.
Manifest
An open-source LLM router that routes agent requests to the most cost-effective model, with usage limits and model…
ai-i18n
GitHub Action that automatically translates i18n files (XLIFF, JSON) using LLM providers (Anthropic, OpenAI, Ollama)…
GitHub Models
Find and experiment with AI models to develop a generative AI application.
Ollama
Get up and running with large language models locally.
Open WebUI
An extensible, feature-rich, and user-friendly self-hosted AI platform designed to operate entirely offline.
Jan
Run LLMs like Mistral or Llama2 locally and offline on your computer, or connect to remote AI APIs.
PyGPT
Personal desktop AI assistant with chat, vision, agents, image generation, tools and commands, voice control and more.
LLM
A CLI utility and Python library for interacting with Large Language Models, remote and local.
Harbor
A containerized toolkit for running local LLM backends, UIs, and supporting services with one command.
off-grid-mobile
React Native app for running LLMs, vision models, and Stable Diffusion on-device on iOS and Android without internet…
Auto-GPT
An experimental open-source attempt to make GPT-4 fully autonomous.
babyagi
An AI-powered task management system.
AgentGPT
Assemble, configure, and deploy autonomous AI Agents in your browser.
GPT Engineer
Specify what you want it to build, the AI asks for clarification, and then builds it.
GPT Prompt Engineer
Automated prompt engineering. It generates, tests, and ranks prompts to find the best ones.
MetaGPT
The Multi-Agent Framework: Given one line requirement, return PRD, design, tasks, repo.
AutoGen
AutoGen is a framework that enables the development of LLM applications using multiple agents that can converse with…
GPT Pilot
Dev tool that writes scalable apps from scratch while the developer oversees the implementation.
OpenHands
An autonomous agent designed to navigate the complexities of software engineering.
Davika
An agentic AI software engineer.
Gemini CLI
An open-source AI agent that brings the power of Gemini directly into your terminal.
OpenCode
The open-source AI coding agent.
Mastra
A TypeScript framework for building AI agents, workflows, and applications.
OpenClaw
A personal AI assistant you run on your own devices.
Agent Skills
Open format and reference SDK for packaging reusable capabilities and expertise for AI agents.
PraisonAI
A framework for building multi-agent AI systems with workflows, tool integrations, and memory.
Hermes Agent
A self-improving personal agent with memory, messaging integrations, and sandboxed tool execution.
OpenAgents
Open-source platform for building AI agent networks with multi-protocol support (WebSocket, gRPC, HTTP, MCP, A2A).
Stable Diffusion
Stable Diffusion by Stability AI is a state of the art text-to-image model that generates images from text.
DragGAN
Drag Your GAN: Interactive Point-based Manipulation on the Generative Image Manifold.
Flux
Text-to-image models by Black Forest Labs with high-quality photorealistic output.
Hugging Face Diffusion Models Course
Python materials for the online course on diffusion models by @huggingface.
ComfyUI
A node-based interface for building and running Stable Diffusion workflows.
TorToiSe
A multi-voice text-to-speech system trained with an emphasis on quality.
Bark
A transformer-based text-to-audio model.
TTS WebUI
Web UI for running multiple text-to-speech, music generation, and audio tools.
Whisper
Robust speech recognition via large-scale weak supervision.
Vibe Transcribe
All-in-one solution for effortless audio and video transcription.
whisper.cpp
Port of OpenAI's Whisper model in C/C++.
whisper-ctranslate2
A Whisper CLI client compatible with the original OpenAI client, using CTranslate2 for faster inference.
AudioCraft
A single-stop code base for generative audio needs, by Meta. Includes MusicGen for music and AudioGen for sounds.
Teleprompter
An on-device AI for your meetings that listens to you and makes charismatic quote suggestions.
Hugging Face
The AI community building the future with open-source AI technologies.
OmniRoute
Self-hostable AI gateway with 4-tier cascading fallback and multi-provider load balancing. Supports 200+ models…
unslop
CLI that strips AI writing patterns (sycophantic openers, filler phrases, em-dash overuse) from text files and…
BGPT MCP
Hosted MCP server for searching scientific papers with full-text experimental data. 50 free searches, no API key needed.
AI Context Linter
GitHub Action that lints AI coding context files (CLAUDE.md, .cursorrules, AGENTS.md) for security issues,…
AI Context Templates
Free CLAUDE.md, Cursor rules, and PRP templates that make AI coding assistants actually useful. 5 ready-to-use…
url-to-md
Any URL to clean markdown for LLMs. Free API, no signup required. Strips JS/CSS and outputs LLM-ready content.
Hugging Face NLP & Model Hub
Extensive repository of NLP models and datasets.
WFGY
Open source framework for debugging LLM agents and RAG pipelines with a 16-mode ProblemMap and practical triage…
TextCraft
Add-in for Microsoft Word that seamlessly integrates essential AI tools, including text generation, proofreading,…
WritBase
AI Agent Task Management
GitHub Copilot
AI pair programmer which suggests code snippets and entire functions in real-time.
Steel Browser
Open-source browser sandbox and automation infrastructure for AI agents and apps with session-backed workflows,…
Poirot
A macOS app for browsing Claude Code sessions, exploring diffs, and re-running commands. Reads local transcripts,…
poorcoder
Lightweight Bash scripts that enhance your terminal coding workflow with web-based AI assistants like Claude or Grok…
Roundtable
Zero-configuration MCP server that unifies multiple AI coding assistants (Claude Code, Cursor, Codex) through…
Dorothy
Open-source desktop app to orchestrate multiple AI coding agents (Claude Code, Codex, Gemini) simultaneously with…
onUI
Open-source browser extension and MCP server for annotation-first UI pair programming with AI agents. Works with…
Antigravity Link
VS Code extension that bridges mobile devices to Google's Antigravity IDE (a Claude-powered VS Code fork). Mirror…
LlamaIndex
LlamaIndex is a data framework for your LLM applications
Mem0
The memory layer for Personalized AI
Inferable
Open-source managed agent runtime for distributed AI agents
BlackVault
Open-source proxy gateway for AI API keys. Generate proxy tokens for agents — BlackVault injects the real key…
WhereMyTokens
Open-source Windows tray app for real-time Claude Code usage monitoring. Tracks per-session tokens, cost, context…
KubeStellar Console
Open-source multi-cluster Kubernetes dashboard with an MCP server (kc-agent) that enables AI coding agents to query…
AI Visibility Monitor
Open-source Python toolkit that tracks whether ChatGPT, Claude, and Perplexity cite your site. MIT license, runs…
LLaMA
A foundational, 65-billion-parameter large language model by Meta.
Llama 2
The next generation of Meta's open source large language model.
Stable Beluga
A finetuned LLamma 65B model
Stable Beluga 2
A finetuned LLamma2 70B model
MemFree
Open Source Hybrid AI Search Engine, Instantly Get Accurate Answers from the Internet, Bookmarks, Notes, and Docs
fabric
Apply AI to everyday challenges in the comfort of your terminal. Help’s to get better results with tried and tested…
Portia AI
Open source framework for building agents that pre-express their planned actions, share their progress and can be…
Agentic Radar
Open-source CLI security scanner for agentic workflows.
VoltAgent
A TypeScript framework for building and running AI agents with tools, memory, and visibility.
Notte
Notte is the fastest, most reliable Browser Using Agents framework
ToolHive
– Find the right MCP server for your task and deploy with one click.
Agenta
Open-source LLMOps platform for prompt management, LLM evaluation, and observability. Build, evaluate, and monitor…
MutahunterAI
Accelerate developer productivity and code security with our open-source AI.
AI Kernel Explorer
Explore the Linux kernel source code with AI-generated summaries.
WhoDB
SQL/NoSQL/Graph/Cache/Object data explorer with AI-powered chat + other useful features
Manifest
An alternative to Supabase for AI Code editors and Vibe Coding tools
DataPup
Database client with AI-powered query assistance to generate context based queries.
Gito
AI code reviewer for GitHub Actions or local use, compatible with any LLM and integrated with Jira/Linear.
Petals
BitTorrent style platform for running AI models in a distributed way.