Obsidian is a closed-source, local-first Markdown notes app with graph linking and paid sync. If you want fully open-source software or browser access to the same kind of linked knowledge base on your own server, these projects fit.
7 open-source alternatives to Obsidian you can host yourself, ranked by GitHub stars and updated daily.
| # | App | Category | Stars | Language | Updated |
|---|---|---|---|---|---|
| 1 |
usememos/memos
|
Notes & Editors | 64,411 | Go | 1d |
| 2 |
laurent22/joplin
|
Notes & Editors | 57,147 | TypeScript | today |
| 3 |
siyuan-note/siyuan
|
Wikis & Knowledge Bases | 47,191 | TypeScript | today |
| 4 |
TriliumNext/Trilium
|
Notes & Editors | 38,875 | TypeScript | today |
| 5 |
dullage/flatnotes
|
Notes & Editors | 3,282 | Vue | 2mo |
| 6 |
zim-desktop-wiki/zim-desktop-wiki
|
Wikis & Knowledge Bases | 2,206 | Python | 18d |
| 7 |
enchant97/note-mark
|
Notes & Editors | 776 | TypeScript | 4d |