Video spec checker
Drop a video or image to see whether Instagram, Facebook, LinkedIn and YouTube will accept it: format, file size, length and aspect ratio. Nothing is uploaded.
kiln-opening.mp4 (example)
- Type
- video/mp4
- Size
- 38.0 MB
- Dimensions
- 1080 × 1920
- Aspect ratio
- 9:16
- Length
- 0:42
- InstagramReady
- This video will be published to Instagram as a Reel.
- Facebook PageReady
- LinkedIn profileReady
- YouTubeReady
- This video may be classified as a YouTube Short (≤ 3 min, square or vertical). YouTube decides the final classification.
What gets checked
- Format: LinkedIn only takes MP4 video. Instagram photos must be JPEG. YouTube doesn't take images at all.
- Length: Reels run 3 seconds to 15 minutes, LinkedIn videos 3 seconds to 30 minutes, Facebook up to 4 hours.
- Size: 300 MB for Reels, 500 MB for LinkedIn, 1 GB for Facebook, 2 GB for YouTube through PostOneGo.
- Aspect ratio: Instagram photos must sit between 4:5 and 1.91:1. LinkedIn video between 1:2.4 and 2.4:1.
Some things can only be checked by the platform itself, such as codec details. If a file passes here and a platform still rejects it, PostOneGo shows the platform's own error on the post.
Want the full list? See social media video specs.