MindSpark
Mind maps that are just Markdown — own your data
What is MindSpark?
MindSpark is an open-source mind-mapping app with no accounts, no paywalls, and no lock-in. Every map is a real Markdown file — edit the canvas or the text and they sync live, both ways. 🧠 Infinite canvas, keyboard-first editing, live auto-layout 📝 Markdown ⇄ mind map, live preview, download as PDF 🧮 A built-in formula engine — SUM(children), AVERAGE, IF Try it, fork it, or just read the code — it's zero dependencies, so there's not much to hide.
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