Free · Private · No upload

Video Compressor & Trimmer

Compress and trim videos directly in your browser — no upload to any server, no watermark, no signup. Everything runs on your device.

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Drop video here or click to select
MP4, MOV, WebM, AVI, MKV · No file size limit · Never uploaded

Why use this instead of Clideo, Kapwing, or HandBrake?

Every popular online video compressor either watermarks the output, limits file size to 500MB, or requires you to create an account. Desktop tools like HandBrake are powerful but complex. This tool hits the middle ground: it's simple to use, runs entirely in your browser using its built-in video encoder, and never uploads your video to any server.

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Never leaves your device

The compression runs locally in your browser tab. The video file stays on your computer at all times — ideal for personal or confidential videos.

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Trim + compress in one step

Set a start and end time to trim the video while compressing it. Perfect for cutting clips before sending to WhatsApp or posting to Instagram.

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Platform presets

WhatsApp has a 16MB limit. Discord free is 10MB. Gmail is 25MB. Choose the preset and the tool targets the right file size automatically.

Frequently Asked Questions

Is my video uploaded to a server?

No. Compression runs locally in your browser. Your video is never sent to any server, cloud, or third party. It stays on your device the entire time.

How long does compression take?

The video is re-encoded in real time using your browser’s built-in encoder, so a 60-second clip takes roughly a minute. Keep the tab visible while it runs for the smoothest result.

What formats does it support?

Input: MP4, MOV, WebM, AVI, MKV, and most other common video formats. Output: MP4 (H.264) — compatible with all devices, platforms, and messaging apps.

What do the quality settings mean?

"High" keeps the most quality (larger file), "Tiny" reduces the file size the most (some quality loss). "Balanced" is recommended for most uses. These map to H.264 CRF values: High=18, Balanced=26, Smaller=32, Tiny=38.

Is there a file size limit?

No limit imposed by this tool. Very large files (500MB+) may be slow depending on your device. If you run into memory issues, try a smaller quality setting or lower resolution.