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Free video compressor by aicompressvideo.com. Compress video size online—your files stay on your device.

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Add captions to your video

Transcribe locally for free. Your video stays on your device, then you can edit timing, choose a style, and export.

Prepare local captions

Choose the spoken language, then let this device build editable word-level captions.

Compatibility mode

WebGPU is unavailable. Continue with the slower WASM compatibility mode.