Shrink video file size with adjustable quality. Supports MP4, WebM, and more — all processing happens in your browser.
Drop a video file here or click to upload
MP4, WebM, MOV, AVI — max 200.0 MB
Compress videos directly in your browser using H.264 encoding. No uploads, no servers — everything runs locally on your device.
About
Large video files eat up storage and take forever to share. The Video Compressor fixes that by shrinking your footage right inside your browser — no uploading to a server, no waiting in a queue, no privacy concerns. Pick a quality preset or dial in the exact bitrate you want, and the tool does the rest using WebAssembly. You keep full control over the trade-off between file size and visual fidelity, and your original video stays untouched on your device the entire time.
Features
Powerful compression without the hassle of desktop software
Choose from High, Medium, or Low presets, or manually set the target bitrate for precise control over output size.
Import and export MP4, WebM, and other popular video formats. Switch containers without re-encoding when possible.
See original and compressed file sizes side by side so you know exactly how much space you saved before downloading.
Everything runs locally via WebAssembly. No server uploads, no waiting in queues, and complete privacy for sensitive footage.
Play the compressed video directly in the browser to verify quality before saving. No surprises after the download.
Because there is no server, there are no artificial upload limits. Process videos as large as your device can handle.
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Guide
Six quick steps from upload to download
Click 'Choose File' or drag and drop a video onto the upload area
Select a quality preset (High, Medium, Low) or enter a custom bitrate
Optionally change the output format (MP4, WebM)
Click 'Compress' to start processing
Preview the compressed video and compare file sizes
Click 'Download' to save the compressed video to your device
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FAQ
Common questions about compressing videos online
The compressor supports MP4, WebM, and most formats that modern browsers can decode. If your format is not recognized, try converting it to MP4 first using the Video Converter tool.
Audio is re-encoded alongside the video. At the High quality preset the difference is imperceptible. Lower presets reduce audio bitrate proportionally.
It depends on the video length, resolution, and your device's processing power. A 1-minute 1080p clip typically takes 15–45 seconds on a modern laptop.
Currently the tool processes one video at a time. Compress each file individually and download them one by one.
Yes. The compressor works on modern mobile browsers, though processing may be slower than on a desktop due to hardware differences.
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More Tools
Drop your file above and start compressing. It takes seconds, costs nothing, and your video never leaves your device.
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Video Converter
Convert between MP4, WebM, and AVI formats