Kotaemon vs SurfSense
A side-by-side comparison of two self-hosted self-hosted ai options — licensing, setup difficulty, resource needs, and what each one replaces.
| Feature | Kotaemon | SurfSense |
|---|---|---|
| Deploy effort | Under-an-hour setup | Under-an-hour setup |
| Health score | 92 · Excellent | 95 · Excellent |
| Category | Self-Hosted AI | Self-Hosted AI |
| License | Apache-2.0 | Apache-2.0 |
| Language | Python | Python |
| Setup difficulty | Medium | Medium |
| Min. RAM | 4,096 MB | 2,048 MB |
| Deployment | docker, bare-metal | docker, source |
| GitHub stars | ★ 25,778 | ★ 16,255 |
| First released | 2024 | 2024 |
| Replaces | NotebookLM | NotebookLM, Perplexity |
What are Kotaemon and SurfSense?
Kotaemon
Kotaemon is an open-source, customizable RAG application for chatting with documents. It offers a clean interface with multimodal document support, citations, and a complex reasoning pipeline.
- Clean document chat UI
- Citation support
- Multimodal RAG
- Configurable pipelines
SurfSense
SurfSense is a self-hosted AI research assistant that connects to your documents, browser history, and external sources to answer questions with citations. It functions as a private alternative to NotebookLM and Perplexity.
- Cited research answers
- Connectors for many sources
- Local and cloud LLM support
- Podcast generation
Kotaemon vs SurfSense: key differences
Both projects are written in Python. SurfSense is the lighter option, starting around 2,048 MB of RAM against 4,096 MB for Kotaemon.
Why pick each one
Choose Kotaemon if…
- Clean citation UI
- Multimodal document support
- GraphRAG support included
Watch out for
- Heavy dependency stack
- Configuration can be involved
Choose SurfSense if…
- Answers with citations
- Many source connectors
- Private NotebookLM alternative
Watch out for
- Young project
- Multi-service stack
Frequently asked questions
Is Kotaemon or SurfSense better?
Neither is universally better. Kotaemon has the larger community; both share a medium setup difficulty, so the decision comes down to features and licensing.
Are Kotaemon and SurfSense free and open-source?
Yes. Kotaemon is licensed under Apache-2.0 and SurfSense under Apache-2.0. Both can be self-hosted at no software cost.
Can I run Kotaemon and SurfSense with Docker?
Kotaemon: yes. SurfSense: yes.
Which is lighter on resources, Kotaemon or SurfSense?
SurfSense has the smaller minimum footprint at 2,048 MB of RAM, compared to about 4,096 MB for Kotaemon. Real-world usage depends on library size, user count, and enabled features.