Open Source Alternatives to Harmony
5 open source AI Agent options similar to Harmony, ranked by named competitors first, sector overlap, and our 0-100 AI-readiness score. Every company listed publishes its source: each one carries an open source sector tag and a public GitHub repository.
Probabl54MLOpsParis, France$18.5MTrack experiments, validate models, and collaborate with confidence using Skore, the methodology layer for AI coding tools.
Open source
All-Hands AI49Agentic AIBoston, United States$5.0MAn open-source platform for building and running AI coding agents that automate software development tasks.
Open source · Self-hostable
- OPOpenWorker7Agentic AI
OpenWorker is an open-source desktop AI agent that runs locally, integrates with everyday tools, and delivers finished outcomes by breaking down tasks.
Open source
Kilo Code24Agentic AISan Francisco, United StatesOpen-source, agentic AI coding tool for VS Code, combining Cline and Roo Code features.
Open source · Self-hostable
Langchain-Chatchat10Open SourceOpen-source, offline-deployable RAG and Agent application built on LangChain for local knowledge base Q&A.
Open source · Self-hostable
| Company | Sector | License | HQ | Funding | Score | Website |
|---|---|---|---|---|---|---|
| ProbablTrack experiments, validate models, and collaborate with confidence using Skore, the methodology layer for AI coding tools. | MLOps | Open source | Paris, France | $18.5M | 54 | |
| All-Hands AIAn open-source platform for building and running AI coding agents that automate software development tasks. | Agentic AI | Open source · Self-hostable | Boston, United States | $5.0M | 49 | |
| OPOpenWorkerOpenWorker is an open-source desktop AI agent that runs locally, integrates with everyday tools, and delivers finished outcomes by breaking down tasks. | Agentic AI | Open source | — | — | 7 | |
| Kilo CodeOpen-source, agentic AI coding tool for VS Code, combining Cline and Roo Code features. | Agentic AI | Open source · Self-hostable | San Francisco, United States | — | 24 | |
| Langchain-ChatchatOpen-source, offline-deployable RAG and Agent application built on LangChain for local knowledge base Q&A. | Open Source | Open source · Self-hostable | — | — | 10 |