Markymap
A Markdown mindmap editor built with React. Local-first, no signup required. Write in Markdown and the mindmap updates live with keyboard shortcuts.

Problem
Brainstorming and visual note-taking tools often add too much friction: heavy interfaces, signup requirements, and poor Markdown support. Users needed a way to write quickly, see structure instantly, and keep their work without setup overhead.
Solution
Built a split-screen editor that renders Markdown into an interactive mindmap in real time, with local auto-save, import and export support, theme toggling, keyboard shortcuts, and expandable branches for navigating larger idea trees.
Architecture
Next.js 16 App Router + React 19 + TypeScript + Tailwind CSS 4, using Coss UI on top of Base UI for interface primitives, Markmap for SVG mindmap rendering, the Web Audio API for interaction sound design, and Oxlint/Oxfmt for fast code quality workflows.
Stack
- TypeScript
- Next.js
- React
- Tailwind CSS
- Coss UI
- Base UI
- Markmap
- Web Audio API
- Oxlint
- Oxfmt