Guides

Practical media guides

Clear steps, compatibility notes and troubleshooting for GrabFlow tools.

Audio guide

How to extract MP3 audio from a video

Extract the first audio track from a local video in your browser without uploading the file.

Reviewed 2026-09-21

Conversion guide

Repackage compatible H.264 and AAC tracks from an MPEG-TS file into MP4 locally.

Reviewed 2026-09-21

Merge guide

Combine compatible local video and audio tracks into one MP4 without uploading them.

Reviewed 2026-09-21

Compression guide

Create a smaller H.264/AAC MP4 with a selected maximum height and quality level.

Reviewed 2026-09-21

Inspection guide

Read basic file, duration and video dimensions locally before choosing another media operation.

Reviewed 2026-09-21

Conversion guide

Choose between fast MP4 track copying and first-track MP3 audio extraction in your browser.

Reviewed 2026-09-21

Editing guide

Copy a compatible video track into a silent MP4 locally without changing its picture quality.

Reviewed 2026-09-21

Editing guide

Create a shorter MP4 by copying compatible tracks and understand why cut points may shift.

Reviewed 2026-09-21

Segment guide

Order and combine matching MPEG-TS segments into one MP4 without uploading the files.

Reviewed 2026-09-21