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Crop Video

Trim the edges of the picture to a new aspect ratio: square for feeds, 9:16 for stories, or an exact pixel box.

Browser-first · upload only when a format needs it

Trim the edges of the picture to a new aspect ratio: square for feeds, 9:16 for stories, or an exact pixel box.

Opens MP3 · MP4 · WEBM · MOV · MKV · 3G2 · 3GP · AMV · ASF · AVI

or drop files and folders hereUp to 500 MB per file on the free plan · older formats use the server encoderFolders are welcome

How it works

  1. 01

    Choose a file for Crop Video. It accepts MP4, MOV, WEBM, MKV, M4V, AVI, WMV, FLV, MPEG, MPG, MPE, 3GP, 3G2, TS. Most files stay in this tab.

  2. 02

    Set the options on the workbench — preview, crop or timeline when this tool has one — then press Run.

  3. 03

    Download the result. It is also saved in your tray so the next tool can pick it up without another upload.

About this tool

Pick a preset and the largest rectangle of that shape is cut from the centre of the frame — square for Instagram, 9:16 for TikTok and Reels, 16:9 to remove black bars from an old recording. Choose Custom to enter left, top, width and height in pixels. Cropping changes the picture, so the video is re-encoded at the new size while the audio is copied.

Questions

What can I open in Crop Video?
Crop Video accepts MP4, MOV, WEBM, MKV, M4V, AVI, WMV, FLV, MPEG, MPG, MPE, 3GP, 3G2, TS. Older video containers such as AVI, WMV, FLV, MPEG and 3GP are decoded by the server encoder.
Does Crop Video upload my file?
Most MP4, WebM, images and PDF stay in this tab. Instagram/TikTok crops, DVD, GIF, iPhone presets, stabilize, hard containers (AVI, WMV, HEVC) and a failed local encode go to the server encoder. The file is processed and discarded — we do not keep a copy.
How large can the file be?
Free: 500 MB and 8 exports a day. Plus (waitlist) raises the daily cap. A pasted public file URL is also accepted.

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