head to head · open source
SiYuan vs MoeMemosAndroid
SiYuan has 46,471 GitHub stars, 3,016 forks, 18 open issues and last shipped today. MoeMemosAndroid has 1,189 stars, 135 forks, 96 open issues and last shipped yesterday. SiYuan leads on adoption by 3,808% (46,471 vs 1,189 stars). SiYuan is written in TypeScript under AGPL-3.0; MoeMemosAndroid is written in Kotlin under GPL-3.0. SiYuan has attracted 6% as many forks as stars, MoeMemosAndroid 11%. SiYuan was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (note-taking, self-hosted), 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
| SiYuan | MoeMemosAndroid | |
|---|---|---|
| GitHub stars | ★ 46K | ★ 1.2K |
| License | AGPL-3.0 | GPL-3.0 |
| Written in | TypeScript | Kotlin |
| Last push | 2026-09-23 | 2026-09-22 |
| Forks | ⑂ 3.0K | ⑂ 135 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick SiYuan if
- You weight community size — 46K stars and counting
- You want the AGPL-3.0 license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick MoeMemosAndroid if
- You want the MoeMemosAndroid feature set and don't need the biggest community
- You prefer the GPL-3.0 license terms
- Your stack matches Kotlin
- You evaluated both and MoeMemosAndroid fits your workflow better
About SiYuan
SiYuan is an open source, self hosted knowledge management system built for privacy first workflows. It operates as a local first workspace where users store data in encrypted repositories on their own infrastructure, avoiding reliance on third party cloud services. The project lives in the productivity and utilities ecosystem, specifically targeting note taking and knowledge management use cases, and positions itself as a privacy respecting alternative to Notion.
read the full SiYuan overview →
About MoeMemosAndroid
Moe Memos (MoeMemosAndroid) is a free, GPL 3.0 Android app written in Kotlin and Jetpack Compose that helps you capture thoughts and ideas as memos, working either against a self hosted ✍️memos server or locally on the device with no server required.
read the full MoeMemosAndroid overview →
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Frequently asked questions
Is SiYuan or MoeMemosAndroid more popular?
SiYuan has 46,471 GitHub stars and MoeMemosAndroid has 1,189. SiYuan has the larger community by that measure.
Are SiYuan and MoeMemosAndroid free?
Both are open source. SiYuan is licensed under AGPL-3.0 and MoeMemosAndroid under GPL-3.0. Neither carries a licence fee.
What is the difference between SiYuan and MoeMemosAndroid?
SiYuan is written in TypeScript and MoeMemosAndroid in Kotlin. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, SiYuan or MoeMemosAndroid?
Choose SiYuan if you want the larger community (46,471 stars) or its AGPL-3.0 licence terms. Choose MoeMemosAndroid if its feature set, stack or GPL-3.0 licence fits better. Both are self-hostable.