Video spec checker for every network
Pick a video and the checker reads its length, size, dimensions and type in your browser, then tests them against every network's published video rules. Each row says whether the network would take it and, if not, why. The file is never uploaded, so you can check large videos freely.
Read in your browser; the file never leaves your computer.
Choose a video to see its details and the checks.
Check it here, then publish it to every network with 1Post
- X
- LinkedIn profile
- LinkedIn Page
- Facebook Page
- Threads
How it works
- 01
The browser reads the video's metadata, so the check is quick even for large files. Length and size are compared with each network's published limits; networks that take no video are marked as such.
- 02
Rules that need a deeper look, such as codec, frame rate or bitrate, are not tested here, because the browser does not read them reliably.
- 03
Copy a link to the result, or open it in the composer with 1Post and schedule it to every network.
It runs in your browser. Nothing you type or choose is uploaded, and the page works without an account. To publish what you made, start a trial and open it in the composer.
Questions
Does it check codec or frame rate?
No. Browsers do not report them reliably, so the checker covers length, size, dimensions and file type, the rules a browser can read.
Is my video uploaded?
No. The browser reads the file's details locally and nothing leaves your computer.
Which length limits does it apply?
Each network's published video length and size range, for example Threads at up to 5 minutes.
Sources
- Pages API: posts, read 2026-10-22
- Threads API: posts, read 2026-10-22
- TikTok for Developers: content sharing guidelines, read 2026-10-22
- YouTube Data API: videos resource, read 2026-10-22
Keep going with TikTok
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