Mind maps, right inside LINE

mind masters is a free mind-mapping app that works instantly with your LINE account — no install, no sign-up forms.

Why mind masters

🆓Completely free

No install needed. Log in with LINE and start mapping in seconds.

🔄Auto-sync

Your maps stay in sync between your phone and PC.

👥Co-editing

Share an invite link and build maps together with friends.

📝Outline view

Switch between mind map and a Workflowy-style outline.

🎬YouTube video notes

Take timestamped notes while watching videos. Tap a time to jump back to that scene.

🔒Private by design

Your maps are encrypted on your device — we can't read them.

Self-analysis, goals, trip planning, SWOT, OKR and more — pick a template and start writing.