Uploads, file types and storage
What your app's users can upload, how files are protected, and what counts toward your storage.
Last updated October 16, 2026
On this page
- Accepted: images, PDFs, plain text and CSV, JSON, and Office documents, up to 100 MB each. Executables and archives are refused.
- Scanned: every upload is checked for malware before it is stored.
- Private: a file's address alone does not open it. The app hands out a signed link that works for a limited time.
- Who can upload: signed-in users, by default.
Storage
Uploads, generated PDFs and the app's own files count toward your storage, charged in credits a little each day based on how much you store. See Reading your storage on the Usage page and Freeing up storage space.
An upload failed
Check the file type and size first. If a file can't be saved, see Fixing a failed upload.
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