Vertical Video and Social Media Resizer
Prepare video in 9:16 for Reels, YouTube Shorts and TikTok, or 4:5/square for Instagram and Facebook posts. Export MP4 using cropping, colour padding or a blurred background.
Step by step
- Video file
- Output ratio and size → Placement
- Prepare video
- Download MP4 video
Example scenario
1280 × 720 → 720 × 1280. Prepare video in 9:16 for Reels, YouTube Shorts and TikTok, or 4:5/square for Instagram and Facebook posts. Export MP4 using cropping, colour padding or a blurred background.
Check your result
One MP4, MOV, WebM or MKV: up to 20 MB, 120 seconds, 1920 pixels per side, 1080p-equivalent pixels and 60 fps. Output is 720 × 1280, 720 × 900 or 720 × 720 MP4 at 30 fps. These are tool limits, not platform upload limits. Focus sliders affect crop mode only; there is no automatic person tracking. Background colour applies to padding only. The first audio track, if present, is re-encoded to AAC; video is also re-encoded lossily. Smaller size and platform acceptance are not guaranteed. Check framing, text and sound before posting.
Frequently asked questions
Is my file uploaded?
Video is uploaded for processing. The download link expires about 60 minutes after upload; scheduled cleanup removes files. Processing uses a queue.
Does it publish automatically?
Focus sliders affect crop mode only; there is no automatic person tracking. Background colour applies to padding only. The first audio track, if present, is re-encoded to AAC; video is also re-encoded lossily. Smaller size and platform acceptance are not guaranteed. Check framing, text and sound before posting.
Where can you use this on social media?
Prepare video in 9:16 for Reels, YouTube Shorts and TikTok, or 4:5/square for Instagram and Facebook posts. Export MP4 using cropping, colour padding or a blurred background. Focus sliders affect crop mode only; there is no automatic person tracking. Background colour applies to padding only. The first audio track, if present, is re-encoded to AAC; video is also re-encoded lossily. Smaller size and platform acceptance are not guaranteed. Check framing, text and sound before posting.
Sources checked:Official platform guidance