A free cloud service for collaborative word processing and document version control. The Markdown markup language is supported. The interface is in English, but text can be written in any language. Allows you to import files from Dropbox, Google Drive, Evernote, Box, upload by link, from FTP or local disk. One of the cool features – work with versions of documents, drafts can be saved at different stages of work and then compare versions.
A unique trick is Hemingway Mode, which embodies his principle of “Write drunk, edit sober. When it is activated, you cannot delete or edit what you have written for a certain period of time.