Upload your M3U or M3U8 file and instantly check for errors, missing headers, invalid entries and duplicate channels.
Drag & drop your M3U file here
or
.m3u and .m3u8 supported • Processed locally in your browser • Never uploaded to our servers
Your file never leaves your browser. All validation runs locally in JavaScript — nothing is sent to our servers.
Validation completes in milliseconds, even for large playlists with tens of thousands of channels.
Checks for missing #EXTM3U header, invalid URLs, missing group-title attributes and duplicate channels.
Create a free account to organize channels by group, build custom playlists, remove duplicates in bulk, and keep your playlist auto-synced from any URL.