Use the free MP3 Metadata Reader below: see the hidden tags inside any MP3 — title, artist, album, year, genre, track, and cover art. Your file never leaves your device.
How to Use the MP3 Metadata Reader
Every MP3 can carry hidden tags: the song title, the artist, the album, the year, the genre, the track number, and sometimes a cover picture. Music players use these tags to show you what is playing. This tool reads those tags and shows them in a simple table, without changing your file at all.
Click the file button and choose an MP3 from your device. The tool reads the tags in your browser with the jsmediatags library and fills in the table: title, artist, album, year, genre, and track. If the file has cover art, the picture appears below the table. A short sentence then tells you what the result means: complete tags, partial tags, or no tags at all. A count line shows how many of the six tags are filled in, so you can judge the file at a glance.
If tags are missing or wrong, fix them in a tag editor on your device, then read the file again here to check your work. If a file has no tags, players will only show its file name, which is why a folder of untagged MP3s looks like a mess of file names. This tool only reads. It never edits, renames, or rewrites your file, so it is safe to check files you care about.
Worked Example: A Tagged MP3 and an Untagged One
Here is a real example run through this exact tool. The test file was a 2-second MP3 with tags written in advance: title Test Song, artist Test Artist, album Test Album, year 2024, genre Rock, and track 3/12, plus a small red square as cover art. The reader showed exactly those values, all six tags filled in, and displayed the cover picture. That is what a well-tagged file looks like: the meaning line said the file has complete tags, so players will show its title, artist, and album correctly.
A second test file had no tags at all. The reader did not invent anything. It showed dashes in every row, a count of 0 of 6 tags filled in, and the plain sentence: no tags found in this file. That honesty matters. A tool that guesses titles would be worse than useless, because you would trust wrong information. If your own file shows no tags, the next step is a tag editor, not another reader.
What Each Tag Means
The title is the name of the song or recording. The artist is who performed it. The album groups songs that belong together, so players can play a whole record in order. The year tells you when it was released, which helps you sort old and new music. The genre is a rough style label, like Rock or Jazz, and different programs spell it differently, so do not be surprised if one player shows a number instead of a word. The track entry, often written as 3/12, means track 3 of 12 tracks on the album, which keeps albums in the right order. Cover art is the small square picture players show while a song plays.
Why Good Tags Matter
Good tags turn a pile of files into a music library. With tags, you can search by artist, build playlists by genre, and see album art instead of file names. Without tags, every player falls back to file names, and a file named track01.mp3 tells you nothing. Tags also travel with the file: copy the MP3 to another phone or computer, and the title and artist travel with it. That is why it is worth checking tags before you share a recording or move a collection to a new device.
Honest Limitations
This tool reads tags only and does not edit them. If you need to change a title or add cover art, use a dedicated tag editor, then verify the result here. Most MP3 files use ID3 tags, which this tool reads well. Tags in other containers, such as MP4 audio, have only basic support, and some unusual tag layouts may not be read. A file with no tags is not broken; it simply has no information stored in it, and the tool says so instead of guessing. If the tag reader library fails to load, the tool says so plainly and reads nothing, rather than showing a fake result. Your files never leave your device.
Frequently Asked Questions
Does this tool change my MP3? No. It only reads the tags and shows them. Your file stays exactly as it was, byte for byte.
Why does my file show no tags found? Either the file truly has no tags, or its tags use a layout this reader cannot parse. Many recordings made by voice recorders and old converters have no tags at all. Add tags with a tag editor and read the file again.
Why does the genre look wrong? Genre labels are not standardised. One program writes Rock, another writes a number code for the same style, and some players show their own label. The tool shows what is stored in the file, even when it looks odd.
Is my audio uploaded anywhere? No. The file is read inside your browser, on your own device. Nothing is sent to a server.
Spanish version: Lector de Metadatos MP3 Online