Form upload
Updated at:2025-11-03
Overview
Users can upload objects using an HTML form, with each upload capped at 5 GB.
Applicable scenarios
A website can embed an upload form within an HTML page, allowing user-uploaded files to be sent directly to BOS without being stored on the website server.
| Form upload | Simple upload | |
|---|---|---|
| Object upload flow | User’s local device - BOS | User’s local device - Website server - BOS |
Operation types
Users can employ the form upload API to transfer files to a designated bucket.
