head to head · open source
obsidian-mind vs second-brain-cloudflare
obsidian-mind has 4,653 GitHub stars, 532 forks, 7 open issues and last shipped 18 days ago. second-brain-cloudflare has 773 stars, 117 forks, 16 open issues and last shipped 3 days ago. obsidian-mind leads on adoption by 502% (4,653 vs 773 stars). obsidian-mind is written in TypeScript under MIT; second-brain-cloudflare is written in TypeScript under MIT. obsidian-mind has attracted 11% as many forks as stars, second-brain-cloudflare 15%. second-brain-cloudflare was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (claude-code), so they are genuine substitutes rather than adjacent tools.
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
| obsidian-mind | second-brain-cloudflare | |
|---|---|---|
| GitHub stars | ★ 4.7K | ★ 773 |
| License | MIT | MIT |
| Written in | TypeScript | TypeScript |
| Last push | 2026-09-02 | 2026-09-17 |
| Forks | ⑂ 532 | ⑂ 117 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick obsidian-mind if
- You weight community size — 4.7K stars and counting
- You want the MIT license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick second-brain-cloudflare if
- You want the second-brain-cloudflare feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and second-brain-cloudflare fits your workflow better
About obsidian-mind
obsidian mind is a self organizing Obsidian vault template that gives AI coding agents persistent memory, built for developers and knowledge workers who run Claude Code, Codex CLI, or Gemini CLI and want every session to build on the last.
read the full obsidian-mind overview →
About second-brain-cloudflare
Second Brain is a self hosted memory layer for AI tools — an MIT licensed TypeScript application that runs as a Cloudflare Worker, stores anything once, and lets Claude, ChatGPT, Cursor, Codex, and any other Model Context Protocol client recall it by meaning — built for individuals and small teams who want their AI context to live in their own Cloudflare account.
read the full second-brain-cloudflare overview →
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Frequently asked questions
Is obsidian-mind or second-brain-cloudflare more popular?
obsidian-mind has 4,653 GitHub stars and second-brain-cloudflare has 773. obsidian-mind has the larger community by that measure.
Are obsidian-mind and second-brain-cloudflare free?
Both are open source. obsidian-mind is licensed under MIT and second-brain-cloudflare under MIT. Neither carries a licence fee.
What is the difference between obsidian-mind and second-brain-cloudflare?
obsidian-mind is written in TypeScript and second-brain-cloudflare 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, obsidian-mind or second-brain-cloudflare?
Choose obsidian-mind if you want the larger community (4,653 stars) or its MIT licence terms. Choose second-brain-cloudflare if its feature set, stack or MIT licence fits better. Both are self-hostable.