Private browser utility

Video & Audio Converter

Extract audio, reduce video size, or make an accurate clip from one MP4. Your media stays on this device.

Source

Choose one MP4

Drop an MP4 here or choose a file from this device

One file at a time. The FFmpeg engine checks the real container and decodes a frame before options are enabled.

Complete source

MP3 audioWidely supported audio file Bitrate

M4A audioAAC audio in an M4A container Bitrate

Compressed MP4H.264 video with AAC audio when present Preset

Separate transformation

Create trimmed MP4Accurate boundaries, re-encoded at high quality

Start 00:00.00 End 00:00.00

Set both handles, then preview the selected range. Audio and compression still use the complete source.