Video Trimmer
Export a selected section of a video as an MP4.
Video & audioVideo & audio tools
Video Compressor
Re-encode a small video as MP4 using an adjustable quality level.
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How to use video compressor
- Choose a supported video file up to 50 MB.
- Set the quality control and select Process media.
- Compare original and output playback and file sizes, then download the MP4.
Work through an example
Choose an MP4 CRF setting, review motion and sound, and understand why a browser conversion cannot promise a size reduction.
Re-encode a small video and compare its real file size →Formats, privacy, and practical limits
Desktop browsers recommended. Maximum input 50 MB. First use downloads a roughly 32 MB processing engine. Processing can be slow and memory intensive; keep this tab open. Output size reduction is not guaranteed.
Files and generated results exist only for this tab session. Download any result you want to keep before leaving the page. Browsers may use temporary memory or disk cache while processing.
Frequently asked questions
Is the output guaranteed to be smaller?
No. Source encoding and the chosen quality affect size. Compare the measured bytes and keep the original if it is preferable.
Does it keep the original video codec?
No. The workflow re-encodes video using H.264 with AAC audio in an MP4 output and can change metadata.