Sites and apps similar to Proton Docs include Joplin, which is open source with a free version. Other options are ONLYOFFICE, LibreOffice - Writer, Google Docs and CryptPad. There's no shortage of Word Processors like Proton Docs, with more than 50 alternatives for Mac, Windows, Linux, Android and iPhone.
A self-hosted office suite for viewing, editing, and collaborating on DOCX, XLSX, and PPTX files. It also enables LLMs and AI applications to generate, edit, and automate Office documents.
South Korea
Gridie is an AI-powered spreadsheet automation tool for Excel and Google Sheets that focuses on reusable workflows instead of one-off AI answers.
South Korea
Nisus Writer feels like home with support for Mac OS X autosave, document versioning, and iCloud. Built from the same core as Nisus Writer Pro, Express features the same elegant user interface and compatibility that has been universally praised by both users and press alike.
United States
Scriptable, macros, multipart selection, styles. Multilingual. Text expanding feature. Document Manager. Use any number of keys to execute menu command, e.g. press Command key, then FAU for "Find all uppercase words." Extremely customizable.
United States
OffiDocs is a flexible and powerful platform that allows you to work online with desktop apps from everywhere at any time using only your web browser. OffiDocs provides you online desktop apps like LibreOffice, GIMP, Dia, ... through your web browser.
A desktop publishing (DTP) and word processing application that is popular for large documents.
United States
EdenText is a web-based, powerful word processor for everything from quick notes to full-length books. No server, no account — processing runs locally and your documents never leave your computer. Just one URL away, or completely offline as a slim browser app — under 2 MB on...
Loopin is a powerful collaboration platform that transforms your meetings into workspaces, allowing your team to work together seamlessly and access all relevant information in one place. With Loopin, you can easily connect similar meetings and view past meeting recaps for a...
United States
Office suite that works locally in your web browser. You don't need to create account, everything remains on your device, nothing is sennt to the cloud.
Free, on-premise suite for your Synology NAS enabling secure real-time collaboration on docs, sheets, and slides. It offers full data ownership, unlimited versioning, and integrated AI.
Taiwan
Open-source self-hosted .docx editor with real-time co-editing. Ribbon toolbar, paginated WYSIWYG layout, tracked changes, comments, spell check, and find & replace. Upload a .docx, share a password-protected link, edit together — no accounts, no lock-in.
India