Compress Video Online — Free Video Compressor

Shrink video files with presets optimized for WhatsApp, Email, or Web sharing.

How It Works

  1. 1Upload your file by dragging it into the drop zone or clicking to browse.
  2. 2Adjust the quality slider to balance file size and visual fidelity (optional).
  3. 3Click Download to save your converted file.

About Compress Video

Video files too large to share? Choose a compression preset optimized for your use case: WhatsApp (720p, ~1 Mbps), Email (480p, ~500 kbps), or Web (original resolution, balanced quality). The tool re-encodes your video using H.264 with FFmpeg.wasm, reducing file size while maintaining reasonable visual quality. Everything runs in your browser — no files are uploaded anywhere.

Frequently Asked Questions

Which preset should I choose?

WhatsApp: optimized for mobile sharing (720p, ~1 Mbps). Email: small enough for email attachments (480p, ~500 kbps). Web: balanced quality for websites and social media (original resolution, higher bitrate).

Is my file uploaded to a server?

No. Transmute processes everything locally in your browser using JavaScript and the Canvas API. Your files never leave your device — there is no server, no upload, no cloud processing.

How much smaller will my video get?

Results vary by content. Typical reductions: WhatsApp preset 60-80% smaller, Email preset 70-90% smaller, Web preset 30-60% smaller than the original.

Is there a file size limit?

The tool accepts files up to 100 MB. Larger files may cause the browser tab to run out of memory since all processing happens locally.

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