Video crop and rotate editor
Crop a selected region and correct video orientation.
Jak používat Video crop and rotate editor
The video crop and rotate editor cuts a rectangular region from a video and can rotate it by 90, 180 or 270 degrees, exporting an MP4 with H.264 video and AAC audio. You set the crop's left and top offset plus an even width and height up to 3840 pixels. Processing runs with FFmpeg compiled to WebAssembly in your browser.
- Choose a source file. If the tool accepts multiple files, arrange them in the order you want.
- Set left (px), top (px), crop width (even px), crop height (even px), rotation.
- Run video crop and rotate editor, review the output, then use the available copy or download controls.
Funkce nástroje
Crop a selected region and correct video orientation.
- Left (px)
- Range: 0 to 10000
- Top (px)
- Range: 0 to 10000
- Crop width (even px)
- Range: 2 to 3840
- Crop height (even px)
- Range: 2 to 3840
- Rotation
- 0 · 90 · 180 · 270
Omezení a zpracování
Up to 20 media files, 50 MB each and 100 MB combined; 50 MB output and a 180-second conversion timeout. Subtitle input accepts at most 5,000 blocks. Required codecs and browser memory affect support.
Ukázkový vstup
1 00:00:01,000 --> 00:00:03,000 Hello, world. 2 00:00:04,000 --> 00:00:06,000 A little easier.
Časté dotazy
Why must the crop width and height be even numbers?
The output is encoded with H.264, which needs even frame dimensions, so odd crop sizes are rejected with an error before conversion starts. Adjust the width or height by one pixel to fix it.
How do I rotate a sideways phone video?
Set Rotation to 90 to turn the picture clockwise or 270 to turn it counterclockwise; 180 turns it upside down. Rotation is applied after the crop, so enter crop coordinates based on the original orientation.
How large a video can I crop?
Each source can be up to 50 MB, the output is capped at 50 MB, and conversion stops after 180 seconds. Long or high-resolution clips may hit those limits, so crop a smaller region or a shorter clip if it fails.
Where is my input processed?
This operation processes its source in your browser. Copy and download are explicit actions; source input is not saved in an account or history.
What are the input limits?
Up to 20 media files, 50 MB each and 100 MB combined; 50 MB output and a 180-second conversion timeout. Subtitle input accepts at most 5,000 blocks. Required codecs and browser memory affect support.