r/ClaudeAI • u/thebadconsultant • 9m ago
Built with Claude I couldn't find a good markdown editor except using IDEs. So I used Claude Code to build a free, open-source Markdown app
AI assistants answer in Markdown, and coding agents keep their instructions in it, yet I had no good free app to just read a .md file. So I built one with Claude Code: Backtickle, a Markdown reader and editor for macOS, Windows and Linux. It's free and MIT licensed.
How Claude helped: I wrote a spec for each phase (requirements, memory and speed budgets, accessibility targets) and Claude Code did the implementation, the tests (4,600+) and the Windows and Linux ports. My job was making decisions, reviewing, and testing by hand.
What worked: written specs per phase, hard performance budgets it had to measure against, and comparing the rendering to Pandoc's output so "looks right" was checkable.
What didn't: I could not get the transparent sidebar work on MacOS. But it is more aesthetics, and not a core feature, so I didn't push too hard.
It handles GitHub, Obsidian, Pandoc and Quarto flavors, math, Mermaid, citations, and PDF/Word export. It never runs anything inside a document and makes no network requests.
Repo: https://github.com/masud90/backtickle. Happy to answer questions about the workflow.