Video & Image Requirements Checker
Drop in a video or image and instantly see whether it’s ready for Instagram, TikTok, YouTube and more — before you waste time on a failed upload. Runs entirely in your browser; your file never leaves your device.
Why posts get rejected — and how to avoid it
Every network silently enforces its own rules for video length, aspect ratio, resolution, file size and format. Cross-post the same clip everywhere and you’ll hit a wall: a Reel that’s a few seconds too long, a TikTok that’s under the 360px minimum, an X video over 512 MB. This checker reads your file locally and grades it against each placement so you can fix problems before you upload — not after.
What gets checked
Format, file size, duration (for video), aspect ratio and resolution are graded pass/fail against each platform’s published limits. Codec, frame rate and bitrate are shown as guidance notes — a browser can’t measure those without re-processing the file, and PostPulse validates them automatically when you publish.
Want the underlying rules? See the full media validation reference that PostPulse enforces on every post.
Frequently Asked Questions
Stop checking one platform at a time
PostPulse validates your media automatically and publishes to every network from one place — so a post that passes here goes live everywhere.