head to head · open source
obsidian-mind vs projectmem
obsidian-mind has 4,661 GitHub stars, 536 forks, 7 open issues and last shipped 21 days ago. projectmem has 833 stars, 42 forks, 2 open issues and last shipped 8 days ago. obsidian-mind leads on adoption by 460% (4,661 vs 833 stars). obsidian-mind is written in TypeScript under MIT; projectmem is written in Python under MIT. obsidian-mind has attracted 11% as many forks as stars, projectmem 5%. projectmem was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (ai-agents, 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 | projectmem | |
|---|---|---|
| GitHub stars | ★ 4.7K | ★ 833 |
| License | MIT | MIT |
| Written in | TypeScript | Python |
| Last push | 2026-09-02 | 2026-09-15 |
| Forks | ⑂ 536 | ⑂ 42 |
| 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 projectmem if
- You want the projectmem feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Python
- You evaluated both and projectmem 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 projectmem
projectmem is an open source, local first memory layer for AI coding agents, built for developers who use Claude Code, Claude Desktop, Cursor, Antigravity or Codex and want each new session to start from what the project already learned rather than from nothing.
read the full projectmem overview →
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Frequently asked questions
Is obsidian-mind or projectmem more popular?
obsidian-mind has 4,661 GitHub stars and projectmem has 833. obsidian-mind has the larger community by that measure.
Are obsidian-mind and projectmem free?
Both are open source. obsidian-mind is licensed under MIT and projectmem under MIT. Neither carries a licence fee.
What is the difference between obsidian-mind and projectmem?
obsidian-mind is written in TypeScript and projectmem in Python. 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 projectmem?
Choose obsidian-mind if you want the larger community (4,661 stars) or its MIT licence terms. Choose projectmem if its feature set, stack or MIT licence fits better. Both are self-hostable.