Media conversion

Convert a focused set of media formats locally

Choose one local audio or video file, then create a compatible MP4 container or a 192 kbps MP3 audio file without uploading the source.

Choose a source file

Local media converter

Local processing

Or select a source file from this device.

Choose a media fileOne file · Up to 500 MB

Output format

Changes the container without re-encoding. Existing video and audio tracks must be MP4-compatible.

Output is created in this browser tab

Processing time and memory use depend on the source size, duration and selected format.

Fast and lossless because it does not re-encode. It is not a codec converter and only works with tracks supported by MP4.

Creates a broadly compatible audio file from the first audio track. Video is omitted from this output.

The source and generated output remain in browser memory. GrabFlow servers only provide the processing engine files.