WebAssembly · Local to this tab

Live playground

Edit a Markdown note in the Ember-inspired surface, then switch to Under the hood view to inspect changed blocks, timing, and source ranges. The parser runs in a Web Worker; no note content is uploaded.

Editor release · Markdown noteLive, local, editable

Editor release

Thursday’s plan is simple: make the writing surface feel quiet and immediate.

Before beta

● Keep Markdown as the source of truth
○ Check emoji offsets in TextKit
○ Try a long note on iPhone

SurfaceDecisionMacKeep the caret steadyiPhoneMake every control thumb-sized

Try changing “quiet and immediate,” checking a task, or editing a table cell. Your draft stays here when you switch examples. Cindermark supplies the structure; the browser draws an interpretation of Ember’s native editor. Open “Under the hood” to inspect the source and changed blocks.

Warming up the parser…Updating parser…

Browser styling is an interpretation of Ember’s native TextKit editor. Raw HTML stays escaped. Math and Mermaid are rendered on demand in the technical preview; parser timing excludes their rendering and worker messaging.