Video Resizer
Adapt your video to any social-media format right in the browser.
or drag and drop your file
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How to resize a video online
Three steps to the right dimensions
11. Upload your video
Drag an MP4, MOV, WebM or GIF into the box, or click “Upload”. Files up to 100 MB accepted.
22. Pick size or enter pixels
Select a preset ratio like 9:16 (Reels), 1:1 (Instagram), 16:9 (YouTube) or type custom width and height. Choose Fit, Fill or Stretch.
33. Export & download
Hit “Export” to get a watermark-free MP4 in the new dimensions, or keep the source resolution.
One-click social presets
Ready-made ratios for TikTok, Instagram Feed and Stories, YouTube, Facebook and Twitter. Pick a platform and resize.
Pixel-perfect control
Need 1080x1350 for a Pinterest Pin or 2560x1440 for a YouTube banner? Enter any dimension and preview the result in real time.
Explore more free tools
Crop, trim, reverse or convert your resized clips. All tools work in the same browser workspace.
EDITOR
See all features Crop Video
Crop footage online. Set a custom frame or pick a preset ratio like 9:16 or 1:1.
EDITORTrim Video
Cut the start, middle or end of any clip. Frame-accurate trimming online.
EDITORReverse Video
Play footage backwards for reels or social posts. One click, then download.
EDITORAdd Emoji
Place emoji stickers on your video. Set size, position and timing per scene.
EDITORAdd Stickers
Drop stickers onto your video. Drag, resize and schedule when they appear.
EDITORAdd GIF
Overlay animated GIFs on your video. Control size, placement and timing.
CONVERTERAVI to MP4
Convert AVI files to MP4 for smaller size and wider device support.
CONVERTERGIF to MP4
Convert GIFs to MP4 for smaller files and sharper playback on any device.
Frequently Asked Questions
MP4, MOV, WebM, MKV and GIF up to 100 MB. 4K and 60 fps files work fine.
Fit adds bars to keep all content visible. Fill crops the edges to fill the frame. Stretch changes pixel proportions to fit, which can distort the image.
No. We export with high-bitrate H.264 or HEVC. Pick "Same as source" at export for the closest match to your original.
It depends on your export settings. Scaling down the resolution or lowering the bitrate will shrink the file. Keeping the original settings keeps the size roughly the same.
Yes. Crop, trim, add text or stickers, resize and export, all in one session without re-uploading.
Select the 9:16 preset and choose Fill. This crops excess width so the video fills the whole phone screen.
No. The exported file has no watermarks or branding.
Yes. The editor is touch-friendly and works in Safari, Chrome and Firefox on iOS and Android.
All transfers use HTTPS. Files are processed in memory and deleted within 30 minutes after export. We don't store your videos.