Nibbo guides: file sizes, formats and privacy
Short, tested answers about sending, shrinking and converting files without giving them to a server.
- Does that online converter upload your files? Check it in 30 seconds
Most free converters send your file to their server first. Here are two quick tests, the browser Network tab and the airplane-mode test, that show whether a site uploads your passport, contract or video.
Updated
- File size limits in 2026: messengers, email and video sites
How big a file you can send in WhatsApp, Telegram, Discord, Gmail and Outlook in 2026, from each service's own help pages, and how to get under the limit.
Updated