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Local Video Compressor

Compress videos using FFmpeg WebAssembly — no upload, no watermarks, no limits.

Zero Server Costs = Zero Watermarks

FFmpeg runs locally on your CPU via WebAssembly. Your video stays in browser memory — no upload, no queues, no artificial limits.

Transparency Note: The FFmpeg engine runs strictly offline via WebAssembly. Your video never leaves your device. The only network requests on this page are for loading the FFmpeg WASM binary on first use and for Google AdSense.

Why video compression services charge you $15/month

Video transcoding is one of the most CPU-intensive operations in computing. When services like Clideo or FreeConvert compress your video, they rent GPU-powered cloud servers (costing $0.50-$2.00 per hour) to process your file. These server costs are the reason behind file size limits (50-100MB free), watermarks, processing queues, and monthly subscriptions.

Our approach is fundamentally different. By running FFmpeg — the same industry-standard encoder used by YouTube, Netflix, and Spotify — directly in your browser via WebAssembly, we shift all processing costs to your local CPU. This means zero server costs for us, which translates to zero restrictions for you.

  • FFmpeg WebAssembly: The complete FFmpeg binary is compiled to WebAssembly and runs in a Web Worker, keeping your browser responsive during encoding.
  • H.264 Encoding: We use the battle-tested libx264 codec with a CRF (Constant Rate Factor) value that balances quality and file size.
  • No Upload Required: Your video is read from local disk directly into browser memory. Nothing is transmitted over the network.

Frequently Asked Questions (FAQ)

Are my videos uploaded to any server?

No. FFmpeg runs entirely in your browser via WebAssembly. Your video never leaves your device.

Is there a file size limit?

No artificial limits. The only constraint is your browser's available RAM. Most modern browsers can handle videos up to 500MB-2GB.

Why is there no watermark?

Competing services add watermarks to force paid upgrades that fund their server costs. Since we have zero server costs (all processing is local), we have no reason to add watermarks.