Video ToolsFree

Video Compressor

Compress video files to reduce file size while maintaining visual quality. Supports MP4, WebM, MOV, and AVI. All processing is done in your browser using FFmpeg.wasm — your video never leaves your device. No server upload, no signup, no watermark.

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MP4, MOV, WebM, AVI · Any format

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Frequently Asked Questions

Does the video compressor upload my file to a server?▼
No. All compression is performed locally in your browser using FFmpeg.wasm. Your video never leaves your device, making it completely private.
What video formats does it support?▼
MP4, WebM, MOV, and AVI as input. Output is MP4 or WebM depending on your selection.
Is there a maximum file size I can compress?▼
Browser memory limits apply. Videos under 500MB work best. For large files, consider compressing in segments or using a desktop tool.
How much can it reduce the file size?▼
Typically 40-70% reduction depending on the original bitrate. A 100MB video can often be compressed to 30-60MB with minimal visible quality loss.
Will compressing reduce video quality?▼
Some quality loss is inherent in lossy video compression. At moderate compression levels the difference is barely noticeable, especially for web sharing.