Video compressor quality settings
Compress video with more detail, balanced quality or a preference for smaller files. Each setting creates MP4 output with H.264 video.
Your files. A few more possibilities.
Video CompressorCompress video to a smaller MP4.
Use this video compressor to compress MP4, MOV, MKV and WebM videos to H.264 MP4. Choose video quality and resolution, compare original and compressed file sizes, and download without uploading your video.
Local from start to finishNo file upload required.
Compress video locallyNo account or installation.
Original
Your file stays unchangedDrop your video here
A new possibility for your file.
One local file · Up to 200 MBResult
Your finished videoYour result will appear here.
Compare your videos side by side.First use downloads about 31 MB. Processing can take several minutes. Converts the first video track and optionally the first audio track; extra tracks and original metadata are not retained.
Your original stays on your device.
Input formats include
MP4MOVMKVWebMAVI→ MP4
Compressed output: MP4 with H.264 video.Step-by-step guide
How to Compress Video
Choose video compressor quality and resolution settings, compress your video to MP4 and compare the result with your original.
Choose a video to compress
Add one local video up to 200 MB to the video compressor. First use downloads about 31 MB of processing components.
Adjust video compression settings
Compress video with high quality, balanced or smaller file settings. Keep the original resolution or limit height to 1080p, 720p or 480p.
Download the compressed video
Compare original and compressed video sizes, preview the MP4 and download the result before leaving the page.
Formats and processing options
Video Compressor Quality and Resolution
Compress video with a lower resolution
Limit video height without upscaling smaller recordings. Video compression at 720p can reduce the processing work and output size compared with a larger resolution.
See what you actually saved
The result compares real bytes, not a predicted percentage. An already optimized video can produce a larger result.
Common questions
Video Compressor FAQ
Learn about supported formats, settings and how to compress video on your device.
Which output format does this video compressor use?
The video compressor creates MP4 with H.264 video and, when retained, AAC audio. Compress video from supported input formats, or use Video Converter when you need a different output format.
Can I compress video without uploading it?
Yes. This video compressor processes your selected video locally in your browser. Compress video, compare file sizes and download the MP4 without sending your video to a server.
Can you guarantee a target size such as 10 MB?
No. The tool uses quality-based encoding. Output size depends on the content, duration, resolution and settings. The result shows the real size; try a lower quality or resolution if needed.
Why is the result larger than my original?
Your source may already use a more efficient codec or a lower bitrate. Re-encoding is not guaranteed to make every video smaller. Keep the original if the new result does not improve your size or playback needs.
Is browser video compression fast?
It depends on your device and video. Encoding can be slow and memory-intensive, especially on phones. Keep this tab open. You can cancel, and a smaller or shorter input is a better fit for browser processing.
Do I need an account, and are my files uploaded?
No account is needed. The selected file is processed locally in your browser and is not uploaded to a server. Your original remains unchanged. Download the result before refreshing or leaving the page.
What are the file limits?
One video at a time, up to 200 MB. Processing needs an up-to-date browser with WebAssembly and Web Workers. Memory and processing time vary by device, and even files below this limit can be too demanding on a phone.