Your ideas,
in a single stroke.
Sumi.md is a block editor for Markdown, beautiful and simple. Your documents stay real .md files, on your disk. Yours.
Simple, really.
Type / and pick what you want to write. No syntax to remember, no settings to learn: the interface steps aside for your words.
Airy, always.
A comfortable reading width, careful typography, room to think. Light or dark themes, every colour of them yours to tune.
Precise, to the character.
Sumi.md rewrites only the blocks you edit. A file you did not touch stays identical, byte for byte.
Everything you need. Nothing more.
The comfort of a block editor, the freedom of a plain text file.
Type /
Headings, tasks, tables, highlighted code, maths, Mermaid diagrams, callouts. Each block moves by its handle and turns into another.
Merged block by block
Git, a sync service or another editor changed the file? Sumi.md merges, and shows conflicts side by side.
Spaces
Work on one side, personal on the other. Each Space gathers its folders and keeps its tabs: switch with a click or Ctrl+1, and pick up exactly where you left off.
Source Mode
Ctrl+/ and the raw Markdown appears. Once more, and the blocks are back.
Snapshots
Go back in a document’s history and restore the version you need.
Tidy images
Paste an image: it joins its document’s folder, and follows it everywhere.
Search
Ctrl+P to open, Ctrl+Shift+F to search everything, with filters on tags and links.
Templates
Your document outlines, with the title, date and author filled in for you.
Export
A document as standalone HTML or PDF, ready to share.
Tab Groups
Documents from several folders open side by side: their tabs gather by folder, and fold away together.
Your files. For real.
No account, no server, no house format. A folder, .md files, their images beside them. Sync them with the tool you like, or not at all. And if one day you leave, your notes leave with you.
Notebooks/
├── writing-workshop.md
├── reading.md
├── loose-ideas.md
├── projects/
│ ├── website.md
│ └── exhibition.md
└── assets/
└── exhibition.assets/
└── poster.pngYour turn to write.
Free. Updates install in one click, from inside the app.
Comment in the margin. The text stays clean.
Select a passage, open a thread, reply, just like in a word processor. But comments live beside the document, never inside it: your Markdown stays intact, and each thread finds its passage again when the text changes.
The works gathered here share the same restraint. Each ink was prepared on the very morning of the stroke, then laid down without a second thought.
Each ink was prepared on the very morning of the stroke, then laid down without a second thought.