Resize Video (Aspect Ratio)

Turn any video into 9:16, 1:1, 4:5 or 16:9 — with a blurred background, bars or a crop.

Drop a file here or click to browseYou can also paste with Ctrl V

How to use Resize Video (Aspect Ratio)

Social presets9:16 for TikTok/Reels/Shorts, 1:1 and 4:5 for Instagram, 16:9 for YouTube.
Blurred backgroundNo ugly black bars — the video itself fills the empty space, blurred.
No watermarkClean MP4 output, processed on your device.

Will my video be cut off?

Not with Blurred background or Black bars — only Crop to fill trims the edges.

What resolution is the result?

Up to 1920 px on the longer side, matching your source quality.

Is it free?

Yes.

Shrink large videos for email, chat apps and the web. Everything runs in your browser — your video is never uploaded.

Cut the part you need from any video. Lossless instant cuts or frame-accurate trimming, right in your browser.

Fix sideways or upside-down phone videos — rotate or mirror them and save as MP4.

Convert between MP4, MOV, MKV, WebM and AVI. Compatible files convert instantly without any quality loss.

Turn a moment from any video into a crisp, looping GIF with an optimized colour palette.

Pull the audio out of any video and save it as MP3, M4A or WAV in seconds.