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Video Compressor
Reduce video file size with adjustable quality (CRF) using ffmpeg.wasm — no upload, entirely local. First use downloads the ~30 MB engine; large files are slow.
⚡ Runs entirely in your browser via ffmpeg.wasm. The engine (~30 MB) downloads on first use; large files are slow and limited by your device's memory. Nothing is uploaded.
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Click or drop a video to compress
Processed locally in your browser — never uploaded.
🔒 This tool runs entirely in your browser. Your data is never uploaded.
Frequently asked questions
Is my video uploaded?＋
No. Compression runs in your browser via ffmpeg.wasm. Nothing is uploaded. The engine (~30 MB) downloads on first use.