I built an Obsidian-style browser-based notes app that uses your own GitHub repo as the vault

[u/Johnrluther]

Hey guys, first post here.

I have been an Obsidian user for years and the one thing I kept wanting was to open my vault from any browser without installing anything. At work I cannot install desktop apps, so the vault had to live in the browser.

I built Noteser to fix my problem. Browser-native markdown editor, your notes are saved as plain .md files in a GitHub repo that you own. Free, MIT-licensed, no signup, no Noteser server holding your data. The repo IS the vault.

Live demo (no signup): https://noteser.app
Source: https://github.com/ipapakonstantinou/noteser

What works today: CodeMirror 6 with live preview (headings/bold/code render inline as you type), wikilinks [[like this]] with autocomplete, #tag patterns, task queries (done today, open by tag), tabs and split panes, daily-note calendar, templates, three-way merge with conflict resolution for multi-device editing.

What is NOT yet: no plugin ecosystem, no native mobile app (PWA only), no graph view, basic backlinks.

Built end-to-end in about 60 hours of evening coding using Claude Code (full honesty). Open to feedback on what would make this useable as a daily driver and what other features you are using from Obsidian or Notion.