head to head · open source
ragflow vs promptfoo
ragflow has 93,460 GitHub stars, 11,215 forks, 1,525 open issues and last shipped yesterday. promptfoo has 26,809 stars, 2,648 forks, 651 open issues and last shipped yesterday. ragflow leads on adoption by 249% (93,460 vs 26,809 stars). ragflow is written in Go under Apache-2.0; promptfoo is written in TypeScript under MIT. ragflow has attracted 12% as many forks as stars, promptfoo 10%. promptfoo was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| ragflow | promptfoo | |
|---|---|---|
| GitHub stars | ★ 93K | ★ 27K |
| License | Apache-2.0 | MIT |
| Written in | Go | TypeScript |
| Last push | 2026-11-04 | 2026-11-04 |
| Forks | ⑂ 11K | ⑂ 2.6K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick ragflow if
- You weight community size — 93K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Go
- You value the larger contributor base for long-term maintenance
pick promptfoo if
- You want the promptfoo feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and promptfoo fits your workflow better
About ragflow
Cloud Documentation Roadmap Discord 📕 Table of Contents 💡 What is RAGFlow? 🎮 Get Started 🔥 Latest Updates 🌟 Key Features 🔎 System Architecture 🎬 Self Hosting 🔧 Configurations 🔧 Build a Docker Image 🔨 Launch Service from Source for Development 📚 Documentation 📜 Roadmap 🏄 Community 🙌 Contributing 💡 What is RAGFlow? RAGFlow is a leading open source Retrieval Augmented Generation (RAG) engine that fuses cutting edge RAG with Agent capabilities to create a superior context layer for LLMs. It offers a streamlined RAG workflow adaptable to enterprises of any scale. Powered by a converged context engine…
read the full ragflow overview →
About promptfoo
Promptfoo: LLM evals & red teaming promptfoo is a CLI and library for evaluating and red teaming LLM apps. Stop the trial and error approach start shipping secure, reliable AI apps. Website · Getting Started · Red Teaming · Documentation · Discord Promptfoo is now part of OpenAI. Promptfoo remains open source and MIT licensed. Read the company update. Quick Start Requires Node.js =22.22.0 for npm and npx usage. Node.js 24 LTS is recommended; see the runtime support guide. Also available via brew install promptfoo and pip install promptfoo . You can also use npx promptfoo@latest to run any command without…
read the full promptfoo overview →
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Frequently asked questions
Is ragflow or promptfoo more popular?
ragflow has 93,460 GitHub stars and promptfoo has 26,809. ragflow has the larger community by that measure.
Are ragflow and promptfoo free?
Both are open source. ragflow is licensed under Apache-2.0 and promptfoo under MIT. Neither carries a licence fee.
What is the difference between ragflow and promptfoo?
ragflow is written in Go and promptfoo in TypeScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, ragflow or promptfoo?
Choose ragflow if you want the larger community (93,460 stars) or its Apache-2.0 licence terms. Choose promptfoo if its feature set, stack or MIT licence fits better. Both are self-hostable.