Table
Master table
One row per network. Length, file size, format, and caption limit come only from the network pages. A blank cell has no confirmed figure. Each filled cell links to its official source. Checked 2026-10-29.
Reading
How to read it
Read a filled cell as the figure from the linked official page, checked 2026-10-29. A blank cell means that figure was not in the official page checked for that network. Open the network page for the rest of the confirmed figures, including codecs, frame rate, and aspect ratio.
Sources
Sources and date
- TikTok for Developers, Media Transfer Guide Page last updated August 4, 2026.
- Meta IG User Media reference Updated Sep 28, 2026.
- YouTube Help, Understand three-minute YouTube Shorts
- YouTube Help, title and description limits
- YouTube Help, Shorts up to 3 minutes
- Meta Reels Publishing API
- X API docs, media introduction
- X API docs, media best practices
- LinkedIn Videos API, Microsoft Learn
- Threads API overview
- Pinterest Business help, Review ad specs
Checked 2026-10-29.