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Supports MP4, WebM, MOV · No file size limit
Why Use Our Video Speed Editor?
True Re-encoding
FFmpeg.wasm re-encodes the video so the output file plays at the correct speed in any player, editor, or platform — not just in the browser.
Live Preview
Instantly preview any speed before processing using the browser's native video player. No waiting — scrub through the video at your chosen speed.
100% Private
Your video never leaves your device. All processing happens locally in your browser using WebAssembly. No uploads, no accounts, no data collection.