cDox: No-AI Docs and Sheets

cDox is a calm, simple place for your writing and your spreadsheets. No ads, no clutter, and nothing you write is ever used to train AI.

Open the app and start writing. No account needed: your pages and sheets stay on your device until you choose to sync.

WRITE
- Pages: a clean, focused editor for notes, essays, drafts and reports
- Headings, lists, checklists, tables, comments and footnotes
- Saves as you type

PLAN AND CALCULATE
- Sheets: real spreadsheets with formulas, number formats and up to 20 tabs
- Budgets, trackers, schedules and lists

WORK TOGETHER
- Invite up to 25 people to a page, a sheet or a whole folder
- Edit at the same time and leave comments
- Copy a link to send someone straight to a document
- Publish any page as a clean public webpage

ON EVERY DEVICE
- iPhone, iPad, Android, Mac, Windows and the web at cdox.studio
- A free account backs up and syncs everything
- Import Word, Excel, CSV and Markdown files on the web, and export them back anytime

PRIVATE BY DESIGN
- Never used to train AI or machine learning models
- Never sold, and no ads
- Stored on servers in Montreal, under Canadian law
- English and French throughout

Free to start. cDox Pro adds 500 MB of storage, unlimited public links, image uploads and Pro fonts.

Made by BFH Labs, an independent company with no investors and no ads.