Agent frameworks
Open source
Ollama
Ollama runs open models on your own computer. You pull a model and chat with it, or call it from other tools on localhost.
- local models
- self-hosted
Open sourceollama.com
Best open-source AI tools to run yourself
Every tool on this page is flagged open source in the directory. The page leaves out hosted products and anything whose listing says the license is not standard open source. n8n can be self-hosted, and it is on the workflow guide for that reason, not here.
Alphabetical groups are not a ranking. Several of these still need an API key for a model even though the agent itself is open source.
How to choose
Ollama runs a model on your computer. Whisper transcribes audio with no hosted product. Aider, Cline, OpenCode, and OpenHands are coding agents you run, usually with a model you choose. Continue was acquired by Cursor; its open-source code remains available. Activepieces, Dify, and Flowise are servers you host. Letta keeps agent memory. Browser Use's open-source library is Python, and its cloud SDK also supports TypeScript.
n8n can be self-hosted under its own license. It is on the workflow guide, not in this open-source list.
Models on your machine
Ollama serves a local model. Whisper transcribes audio locally.
Coding agents you run
You bring the repository and, in most cases, the model. OpenCode can also use free models it includes.
Coding
Open sourceAider
Aider is an open source coding agent for the terminal. It edits a git repository with a model you choose and can commit the result.
- terminal
- git
- local
Open sourceaider.chatCoding
Open sourceCline
Cline is an open source coding agent for VS Code. It reads the project, runs commands, and applies edits with an API key you provide.
- VS Code
- agent
- local
Open sourcecline.botCoding
Open sourceContinue
Continue is an open source coding agent that Cursor has acquired. The Continue site says the open-source codebase remains freely available.
- open source
- coding agent
Open sourcecontinue.devCoding
Open sourceOpenCode
OpenCode is an open source coding agent for the terminal, a desktop app, or an IDE. It can run several agents on one project, and you can use the free models it includes or connect a model of your own.
- coding agent
- terminal
- open source
Open sourceopencode.aiCoding
Open sourceOpenHands
OpenHands is an open source platform for software engineering agents. You can run agents locally or in the cloud and review their changes.
- coding agent
- self-hosted
Open sourceopenhands.dev
Servers and libraries you host
Activepieces, Dify, and Flowise are applications. Letta and Browser Use are frameworks you run in your own stack.
Ops and automation
Open sourceActivepieces
Activepieces is an open source automation tool in the same family as Zapier. The core is free to self-host, and a paid cloud is available.
- workflows
- self-hosted
- integrations
Open sourceactivepieces.comAgent frameworks
Open sourceBrowser Use
Browser Use lets an agent operate a real browser. The open-source library is Python, and the cloud SDK supports Python and TypeScript.
- browser
- Python
- TypeScript
Open sourcebrowser-use.comAgent frameworks
Open sourceDify
Dify is an open source platform for building AI apps and agents with a visual editor. You can self-host it or use Dify Cloud.
- visual builder
- self-hosted
- RAG
Open sourcedify.aiAgent frameworks
Open sourceFlowise
Flowise is an open source visual builder for model workflows. You connect nodes for models, tools, and data, then call the result from an API.
- visual builder
- self-hosted
Open sourceflowiseai.comAgent frameworks
Open sourceLetta
Letta, formerly MemGPT, is an open source platform for agents that keep memory over time. You can run it yourself or use the hosted service.
- memory
- agents
- self-hosted
Open sourceletta.com
Categories
Other guides
- Best AI coding agents
- Best AI meeting notes
- Best AI voice tools
- Best AI workflow automation
- Best frameworks for building agents
12 tools in this guide on AgentAtlas. Each card links to the listing, and the listing links to the official site.