LOCAL FILE UTILITY · U1

M3U playlist path preflight

Preview directory-prefix changes, preserve playlist order and comments, and download a repaired copy.

Scope: Checks path text only. File existence and playback are not verified.

Preview a playlist path change

Choose a UTF-8 M3U/M3U8 file (up to 5 MiB), or paste its contents. Everything runs in your browser. Directory prefixes change; comments, stream URLs, line endings and track order stay intact. This cannot check whether music files exist.

Playlist file Playlist contents Old directory prefix New directory prefix Ignore letter case when matching (useful for Windows paths)

No playlist processed yet.

How to use

Choose a UTF-8 playlist or paste its contents.
Enter old and new directory prefixes, then preview line changes.
Review unmatched entries and download a separate copy.

Limits and context

Read format limits and warnings before exporting. Sample buttons use synthetic content. No uploaded content is sent to a server.

Original task discussion · Implementation context

The discussion explains task context; it does not prove this tool is better than existing alternatives.