head to head · open source
SurfSense vs Zotero
SurfSense has 16,717 GitHub stars, 1,597 forks, 130 open issues and last shipped yesterday. Zotero has 15,838 stars, 1,173 forks, 1,600 open issues and last shipped yesterday. SurfSense leads on adoption by 6% (16,717 vs 15,838 stars). SurfSense is written in Python under Apache-2.0; Zotero is written in JavaScript under a custom or non-standard licence. SurfSense has attracted 10% as many forks as stars, Zotero 7%. Zotero 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
| SurfSense | Zotero | |
|---|---|---|
| GitHub stars | ★ 17K | ★ 16K |
| License | Apache-2.0 | Custom / other |
| Written in | Python | JavaScript |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 1.6K | ⑂ 1.2K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick SurfSense if
- You weight community size — 17K 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 Zotero if
- You want the Zotero feature set and don't need the biggest community
- You prefer the Custom / other license terms
- Your stack matches JavaScript
- You evaluated both and Zotero fits your workflow better
About SurfSense
English Español Português हिन्दी 简体中文 SurfSense: The Open Source NotebookLM Alternative for Open Web Research SurfSense is the open source NotebookLM alternative for AI agents , an open web research platform with live data connectors. Your agents research the live web with structured data from Reddit, YouTube, Instagram, TikTok, Amazon, Walmart, Google Maps, Google Search, Indeed, and any page on the open web , through one REST API or MCP server . Scheduled and event triggered agents turn what they find into briefs and alerts, and a built in knowledge base keeps every finding searchable with citations. [!NOTE]…
read the full SurfSense overview →
About Zotero
Zotero ====== Zotero is a free, easy to use tool to help you collect, organize, cite, and share your research sources. Please post feature requests or bug reports to the Zotero Forums. If you're having trouble with Zotero, see Getting Help. For more information on how to use this source code, see the Zotero documentation.
read the full Zotero overview →
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Frequently asked questions
Is SurfSense or Zotero more popular?
SurfSense has 16,717 GitHub stars and Zotero has 15,838. SurfSense has the larger community by that measure.
Are SurfSense and Zotero free?
Both are open source. SurfSense is licensed under Apache-2.0, and Zotero has no licence declared in this registry. Both are free to self-host.
What is the difference between SurfSense and Zotero?
SurfSense is written in Python and Zotero in JavaScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, SurfSense or Zotero?
Choose SurfSense if you want the larger community (16,717 stars) or its Apache-2.0 licence terms. Choose Zotero if its feature set, stack or Custom / other licence fits better. Both are self-hostable.