A Markdown editor that runs in your browser

Nothing to install, nothing to sign up for — opening this page is the whole setup. What you write stays plain Markdown, and you can take it with you whenever you like.

What you can do

Write with the formatting visible

Headings, bold text and lists appear the way they will read, without your having to memorise the syntax. What you write comes back out as plain Markdown.

Draw diagrams from code blocks

Mermaid turns a code block into a flowchart or a sequence diagram; PlantUML turns one into a class or deployment diagram.

Typeset mathematics

Write KaTeX notation and it becomes typeset mathematics where you wrote it.

Edit tables as tables

Add rows and columns by working in the cells, instead of counting pipe characters.

Use the syntax GitHub uses

Task lists and strikethrough are supported, so your document survives the trip to GitHub intact.

Colour your code

Code blocks are recognised by language and highlighted accordingly.

See what changed

Put two versions side by side, with only the changed lines coloured — then merge one into the other.

Move between GitHub and Google Drive

Open a file straight from a repository or a drive, and put it back where it came from when you are done.

Guides for each syntax

Diagrams, math, tables and comparisons each have a guide with the syntax and worked examples.

How to use it

  1. Open

    There is nothing to configure. This page is the editor.

  2. Write

    A copy of your work is kept in the browser as you go. Close the tab and you can pick up where you left off.

  3. Take it with you

    Download it as a Markdown file, or save it to GitHub or Google Drive.

Frequently asked questions

Do I need an account?

No. You only authorise a connection when you choose to save to GitHub or Google Drive.

Where is my writing stored?

By default, only in your browser's local storage. Nothing is sent to a server until you choose where to save it.

Which syntax is supported?

Standard Markdown, plus tables, task lists and strikethrough. You can also embed Mermaid, PlantUML and KaTeX in the body.

Can I use it in Visual Studio Code?

Yes. There is an extension that opens the same editor inside Visual Studio Code.