Video Compressor
Transcode video to H.264/AAC MP4 at a chosen quality. A lossy MP4 video, optionally at a lower resolution. Transcoding is lossy and may take substantial time for long videos.
Processed locally in your browser — files are never uploaded
Why use this converter?
Key details about this conversion path.
CRF controls video quality and size
Lower CRF values retain more detail for better quality; higher CRF values generally produce smaller files.
A defined operational boundary
Transcoding is lossy and may take substantial time for long videos.
Focused on file-size reduction
Transcode video to H.264/AAC MP4 at a chosen quality. Transcoding is lossy and may take substantial time for long videos.
Controls for this operation
This tool exposes Quality (CRF, lower = better), Resolution settings before processing.
How to use this converter
Follow these three steps.
- 1
Add your input
Select or drop One supported MP4, WebM, MOV, AVI, or MKV video.
- 2
Choose settings
Review Quality (CRF, lower = better), Resolution before processing.
- 3
Process and download
A lossy MP4 video, optionally at a lower resolution.
Frequently asked questions
Details about this conversion and its output.
Transcode video to H.264/AAC MP4 at a chosen quality.
Lower CRF values retain more detail for better quality; higher CRF values generally produce smaller files.
Transcoding is lossy and may take substantial time for long videos.
It is suited to preparing videos for upload.
One supported MP4, WebM, MOV, AVI, or MKV video.
A lossy MP4 video, optionally at a lower resolution.
Common use cases
Practical ways to use this tool.
- Preparing videos for upload
- Reducing sharing size
- Preparing video for browser playback and sharing
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