Open-Source AI · Self-hosted chat UI

Lobe Chat vs Kotaemon

Lobe Chat vs Kotaemon compared for 2026 — features, license, ease of use, performance and which one to choose. Modern, design-forward chat framework vs Clean open UI to chat with documents.

Updated regularly · curated by OpenSourceAI.tech

Choose Lobe Chat for users who want the most polished, modern UI. Choose Kotaemon for teams wanting a ready-made document QA UI.

Lobe Chat vs Kotaemon at a glance

SpecLobe ChatKotaemon
CategorySelf-hosted chat UISelf-hosted chat UI
TypeSelf-hosted web UIRAG chat UI
LicenseMITApache-2.0
Runs locallySelf-hostedSelf-hosted
Primary languageTypeScriptPython
Ease of useBeginnerBeginner
Best forusers who want the most polished, modern UIteams wanting a ready-made document QA UI
GitHub stars25.7k

How Lobe Chat and Kotaemon score

🤝 Too close to call — Lobe Chat and Kotaemon land within a hair (4.8 vs 4.6 / 5). Pick on fit, not on score.
CriterionLobe ChatKotaemon
Popularityn/a3.5
Maintenancen/a5.0
Ease of use5.05.0
Privacy4.54.5
License freedom5.05.0

Scores are computed automatically from public signals — GitHub stars (popularity), recent commit activity (maintenance), license type (freedom), local-first design (privacy) and onboarding complexity (ease of use). Indicative, not a verdict.

What each one is

Lobe Chat

Self-hosted web UI · MIT

Lobe Chat is a modern, design-forward chat framework with a plugin and agent marketplace, voice support and one-click self-hosting.

  • Beautiful, modern interface with theming
  • Plugin and agent marketplace
  • One-click deploy (Vercel, Docker)
Visit Lobe Chat →

Kotaemon

RAG chat UI · Apache-2.0

Kotaemon is a clean, open-source RAG interface for chatting with your documents, with citations, multi-user support and a customizable pipeline for developers.

  • Answers with inline citations and previews
  • Both end-user UI and developer framework
  • Gradio-based, easy to theme and extend
See the Kotaemon page →

Key differences

Lobe Chat is self-hosted web UI, while Kotaemon is rAG chat UI. Their licenses differ (MIT vs Apache-2.0), which matters if you ship a commercial product. In short, Lobe Chat fits users who want the most polished, modern UI, and Kotaemon fits teams wanting a ready-made document QA UI.

Which should you choose?

Choose Lobe Chat for users who want the most polished, modern UI. Choose Kotaemon for teams wanting a ready-made document QA UI.

There is rarely one winner — many setups use both. The right pick depends on your hardware, your team's skills, and whether you value simplicity or control.

Frequently asked questions

Is Lobe Chat or Kotaemon easier to use?

Both sit at a similar level (Beginner). Your choice should come down to fit rather than difficulty.

Are Lobe Chat and Kotaemon free?

Lobe Chat is free and open source (MIT), and Kotaemon is free and open source (Apache-2.0). Neither charges for the core software.

Can I run Lobe Chat and Kotaemon locally?

Lobe Chat: self-hosted · Kotaemon: self-hosted. Both can be used without sending your data to a third-party cloud where their setup allows.

Lobe Chat vs Kotaemon — which should I pick in 2026?

Choose Lobe Chat for users who want the most polished, modern UI. Choose Kotaemon for teams wanting a ready-made document QA UI.

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