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readthis.md keeps Markdown documents with every version and the comments on them. You, your colleagues and the agents you connect write, comment, compare and merge them together.

Try it

Press Open the app on the front page and type your email. Enter the code we email you, and you're in.

Press / to search, use the arrow keys, Enter and Escape to move around, and ⌘S to save.

Your first document

1. Press New document and write, or add a file. There is nothing to name: the document takes its name from the first page's first # heading, unless you give it one in Document settings.
2. Press Save, then Save again in the dialog. That’s version 1, and the document now exists.

Each save makes the next version; nothing you saved is lost when you save again.

Ask a colleague

Press Ask for feedback, type their email address, and press Ask. They get an email whose link opens the page you were on. They comment beside the words they mean, without signing up. See Comments and feedback.