Crop Video
Crop Video trims the frame to focus on what matters — removing black bars, reframing for a different aspect ratio, or zooming in on the subject. Drag a crop box over the preview or lock it to a ratio, and export a tightly framed clip processed entirely in your browser.
Add your video
The file is read by your browser and stays on your device — there is no upload step.
Your video
The work runs in this tab. Nothing is sent anywhere, and the download is generated locally.
How to use Crop Video
- 01Upload
Open the clip
Drop your video in and the first frame appears with a crop box over it.
- 02Customize
Frame your crop
Drag the box and its corners, or pick an aspect ratio like 1:1 or 9:16 to lock the shape.
- 03Process
Export
Export to render the cropped video at the exact region you selected.
What are you trying to remove?
- Black bars baked into the pictureCrop Video
- Dead time at the start or endTrim Video
- A section in the middleCut Video
- The whole frame is the wrong resolutionResize Video
Framing for where it is going
- Vertical 9:16Reels, TikTok
Crop tight and keep the subject centred — phone interface covers the top and bottom of the frame.
- Square 1:1feed posts
Forgiving on both axes, which makes it the safest reframe from landscape footage.
- Widescreen 16:9YouTube, embeds
The native shape of most footage. Cropping within it removes bars or tightens a loose shot.
What you remove does not come back
The cropped area is discarded and the clip is re-encoded once at the new dimensions. There is no way to widen the frame again afterwards.
Export to a new file and keep the source. Every tool here works from the file you drop in and writes a fresh one, so the original on your device is untouched — but only if you do not overwrite it yourself afterwards.
Supported formats
- MP4
- MOV
- WebM
- AVI
- MKV
- Maximum file size —
- bounded by your device's memory
- Processed by —
- FFmpeg (WebAssembly), on your device
Your file, and what the page does
Your file is never uploaded. Crop Video reads it into this browser tab and processes it with FFmpeg compiled to WebAssembly on your own device. There is no upload endpoint in the application and no copy on any server — closing the tab discards it.
That is also why processing takes longer here than on a site that uploads: your device is doing the work rather than a rack of servers. The trade is that the file never leaves it.
What the page does send or fetch
- The processing engine, once
- The first time you use any video or audio tool, the browser downloads the FFmpeg WebAssembly build (~30MB) from the jsDelivr CDN and reuses the cached copy afterwards. That is a file coming to you — no part of your own file is in the request.
- Ads on the page
- The site is funded by advertising, so the page loads Google AdSense. That carries the usual web basics — IP address, browser, referring page — as on any ad-supported site.
- An anonymous usage counter
- When Crop Video finishes we record that the tool ran, whether it succeeded and how long it took. No file data, no identifier, no cookie.
Your file is not on that list. How this works.
Frequently asked questions
Yes. Choose Free to crop any region, or lock to 1:1, 16:9, 9:16, 4:3 or 3:4.
The output matches the cropped area in the source's pixels, so a smaller crop produces a smaller frame.
Yes — the same crop region is applied consistently across the whole clip.
Yes — Crop Video is completely free. There's no account, sign-up, watermark or limit.
No. It runs in any modern browser — Chrome, Edge, Safari, Firefox, Brave — with nothing to download or install.
Not sure cropping is what you need?
- Wrong part of the frame is in shotCrop Video
- Wrong resolution for the platformResize Video
- Too longTrim Video
- Filmed sidewaysRotate Video
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