TikTok video resizer
Turn a landscape or square video into TikTok's vertical 9:16 format. Fill the empty space with a blurred copy of the video so it plays uncropped and fills the phone screen.
Free · No sign-up · Runs in your browser
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Your files are never uploaded; everything runs in your browser.
How to use
- Choose your video.
- Pick the target ratio: 9:16, 4:5, 1:1 or 16:9.
- Choose a blurred background, a solid color or crop; check the live preview.
- Press Convert video and download the MP4.
Highlights
- 9:16 (1080×1920), 4:5 (1080×1350), 1:1 (1080×1080) and 16:9 (1920×1080) output.
- Blurred background, solid color or crop to fill.
- Live preview and optional audio removal.
- Your video is never uploaded; everything runs in your browser.
Frequently asked questions
What size should a TikTok video be?
TikTok shows videos in vertical 9:16, at 1080 × 1920 pixels. This tool exports your video at exactly that size.
Can I make a landscape video vertical without cutting it?
Yes. The blurred background option shows the whole video in the middle and fills the space above and below with an enlarged, blurred copy of it.
Does the same video work for Reels and YouTube Shorts?
Yes. Instagram Reels and YouTube Shorts also use vertical 9:16, so you can share the same file on all three. Avoid placing important text where the interface sits at the bottom and right.
Is my video uploaded to a server?
No. The video is processed entirely in your browser and never sent anywhere.
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