ClipZap
Home →

Resize video online

Change your video resolution for any platform or screen size. Pick a preset or enter custom dimensions. No upload needed.

Drop your video here

or click to browse: MP4, MOV, AVI, WEBM, MKV

Max: 500MB • 100% Private

Related tools

Add Audio to VideoAdd background music or replace sound in any video.Try itMP4 to MP3Extract the audio track from any video as an MP3.Try itVideo to GIFTurn a short video clip into a smooth animated GIF.Try it
Loading Ad...

What this tool does

Every platform wants a different resolution. TikTok and Reels want vertical, YouTube wants widescreen, and some players just need something smaller to load fast. Resize video applies the right dimensions with presets built around the platforms people actually post to.

What to do next

Compress Video

Reduce your file size before uploading to social media.

Trim Video

Cut off the beginning or end of your resized video.

Frequently Asked Questions

What resolutions are available?

1080p, 720p, and 4K presets, matched to common platform requirements.

Does resizing change the aspect ratio?

Platform presets are matched to that platform's typical aspect ratio, so a TikTok preset targets vertical and a YouTube preset targets widescreen.

Will resizing crop or stretch my video?

This depends on how the source footage compares to the target aspect ratio.

Does resizing reduce quality?

Downscaling to a smaller resolution usually looks clean. Upscaling to something larger than the original won't add real detail, it just stretches existing pixels.

What formats are supported?

MP4, MOV, AVI, WEBM, and MKV.

Is there a file size limit?

500MB.

Does it work on mobile?

Yes.

Will there be a watermark?

No.

Last updated: 2026-07-13