head to head · open source
kotaemon vs react-email-editor
kotaemon has 25,853 GitHub stars, 2,164 forks, 247 open issues and last shipped 4 months ago. react-email-editor has 5,254 stars, 804 forks, 245 open issues and last shipped 4 days ago. kotaemon leads on adoption by 392% (25,853 vs 5,254 stars). kotaemon is written in Python under Apache-2.0; react-email-editor is written in TypeScript under MIT. kotaemon has attracted 8% as many forks as stars, react-email-editor 15%. react-email-editor 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
| kotaemon | react-email-editor | |
|---|---|---|
| GitHub stars | ★ 26K | ★ 5.3K |
| License | Apache-2.0 | MIT |
| Written in | Python | TypeScript |
| Last push | 2026-07-14 | 2026-11-01 |
| Forks | ⑂ 2.2K | ⑂ 804 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick kotaemon if
- You weight community size — 26K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick react-email-editor if
- You want the react-email-editor feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and react-email-editor fits your workflow better
About kotaemon
kotaemon An open source clean & customizable RAG UI for chatting with your documents. Built with both end users and developers in mind. Live Demo 1 Live Demo 2 Online Install Colab Notebook (Local RAG) User Guide Developer Guide Feedback Contact Introduction This project serves as a functional RAG UI for both end users who want to do QA on their documents and developers who want to build their own RAG pipeline. For end users Clean & Minimalistic UI : A user friendly interface for RAG based QA. Support for Various LLMs : Compatible with LLM API providers (OpenAI, AzureOpenAI, Cohere, etc.) and local LLMs (via…
read the full kotaemon overview →
About react-email-editor
React Email Editor Official React component for embedding Unlayer ’s drag and drop email editor in your app. Introduction Add a production ready, drag and drop email builder to your React app with a single component. react email editor lets developers embed Unlayer, load and save designs, listen to editor events, customize configuration, and export responsive HTML. Use it when you need email template creation inside your app without building and maintaining a full visual editor from scratch. Live Demo Check out the live demo here: (Source Code) Installation The easiest way to use React Email Editor is to install…
read the full react-email-editor overview →
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Frequently asked questions
Is kotaemon or react-email-editor more popular?
kotaemon has 25,853 GitHub stars and react-email-editor has 5,254. kotaemon has the larger community by that measure.
Are kotaemon and react-email-editor free?
Both are open source. kotaemon is licensed under Apache-2.0 and react-email-editor under MIT. Neither carries a licence fee.
What is the difference between kotaemon and react-email-editor?
kotaemon is written in Python and react-email-editor 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, kotaemon or react-email-editor?
Choose kotaemon if you want the larger community (25,853 stars) or its Apache-2.0 licence terms. Choose react-email-editor if its feature set, stack or MIT licence fits better. Both are self-hostable.