Show HN: NotesGutter – Clean Code Notes with Markdown and Drawings
alohaTool Friday, February 20, 2026
I built NotesGutter for VS Code, Cursor etc to stop "comment rot." Instead of 20-line comments cluttering your source, you attach rich Markdown notes and Excalidraw diagrams to specific lines via small anchors.
The Workflow:
Markdown Side-Peek: High-fidelity documentation for complex logic. Infinite Canvas: Draw architecture diagrams directly linked to functions. Git-Native: Notes are stored in a .notesgutter folder. They version with your code and work 100% offline. Privacy: No cloud. No tracking. Your data stays in your repo.
Preview: https://github.com/ParasKoundal/NotesGutter/raw/main/Preview...
Install: Search "NotesGutter" in the VS Code/Cursor/Antigravity Marketplace or find it here: https://marketplace.visualstudio.com/items?itemName=ParasKou... https://open-vsx.org/extension/ParasKoundal/notesgutter
I'd love to hear what you think about it : https://github.com/parasKoundal/NotesGutter.