WEBM

WebM Compressor

Compress WebM videos using VP9 encoding directly in your browser. No uploads. No server. 100% private.

🔒 Videos never leave your device.🎯 Smart Adaptive Mode – per-video bitrate targeting.📦 Any format · MP4, MOV, MKV, AVI, FLV & more · Up to 400 MB.

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Drag & Drop Videos

MP4 · MOV · WebM · MKV · AVI · FLV & more · Up to 400 MB

Live Engine Monitoring

v2.4.0-Stable

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1.2 TB

Bandwidth Saved Today

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0.4s

Avg Process Time

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99.9%

Compression Fidelity

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Military-Grade Privacy

Auto-purge after 60m. Zero logs. Fully encrypted processing.

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Perfect Transparency

Advanced alpha-channel preservation for UI designers.

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No Registration

Jump straight into processing without the sign-up friction.

Edge-First Processing

Our global CDN ensures your files are optimized at the server nearest to you, reducing latency by up to 90%.

Global Status: Optimal

Knowledge Base

Frequently Asked Questions

What is WebM format?↓

WebM is an open-source video format developed by Google, designed for web use. It uses VP8 or VP9 video codecs and is natively supported in all modern browsers.

Why compress WebM files?↓

Even though WebM is efficient, compressing further reduces bandwidth for streaming, storage costs, and improves load times on video-heavy web pages.

Can I convert WebM to MP4 after compressing?↓

Yes. After compression use our WebM to MP4 converter to change the format for broader device compatibility.

Is WebM compression free?↓

Completely free, unlimited, no signup required. Processing uses FFmpeg.wasm running in your browser so no files are ever uploaded.