Crop H264 Video Online - Free Tool.
Need Custom Conversion?Crop H264 video in-browser to remove borders, fix aspect ratio, or focus on a subject area before export.
Drop a video here or browse (MAX 500 MB)
Max 500 MB per file
Crop preview
Your video and crop box appear here after you choose a file. Drag the box or edit the percentages below.
Preview is not available for this file
No worries — your video can still be converted. Set your file name and click Convert when you are ready.
Crop region as % of intrinsic frame. Drag the box or edit values; even dimensions are applied on export.
Quick use cases
Workflow
- Upload H264 video
- Set crop region
- Apply crop
- Download cropped output
Processing notes
- Crop coordinates apply to the visible frame.
- Re-encode time depends on duration and resolution.
- Preview before download when possible.
Compatibility notes
- H264 is widely used for web delivery, editing, and device playback.
- Use metadata preview to confirm resolution, duration, and codec settings.
- Validate exports on the platforms where you publish or review content.
Troubleshooting
- If processing is slow, reduce file size or use a more powerful device.
- If playback fails, try another target format from the Explore links.
- If quality looks off, compare source resolution/bitrate with your export settings.
Video crop FAQ
Does this video cropper upload my file to a server?
No. Processing runs in your browser using local compute; files are not sent to ConversionTab servers for this tool.
Which H264 workflows is this useful for?
Quick edits, QA checks, and one-off exports when you need a browser-based workflow without installing desktop software.
How do I verify the result?
Download the output, confirm duration and playback, and use the metadata viewer if your pipeline requires detailed stream checks.
More tools to try
Converters, editors, and extractors that pair well with this page—grouped so you can scan quickly.