What stays on your device
For on-device tools, the file never leaves the browser tab. The result is saved straight to your device.
Check it yourself
Open a tool, switch your device to airplane mode, and run it. On-device tools keep working without a connection.
Tools that need a server
Word to PDF, HTML to PDF, PowerPoint to PDF, Excel to PDF, ODT to PDF, HTML to image. They are marked “server” and say so before anything is uploaded. They are not switched on yet.
Machine drafts
Summaries and translations are machine drafts, not certified.
Details: Privacy · Are my files uploaded?