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Read Audio TagsImport any audio file to instantly view its embedded metadata: title, artist, album, year, genre, artwork, duration, bitrate, and more. All processing happens locally in your browser and nothing is uploaded to any server.
or click to import
How to read audio metadata online
Drag and drop your audio files onto the upload area above, or click to open the file picker. The viewer immediately reads and displays all embedded metadata tags (title, artist, album, year, genre, and artwork) along with technical audio properties such as duration, bitrate, sample rate, and bit depth. Supported formats include MP3, FLAC, WAV, AIFF, M4A, AAC, OGG, Opus, WMA, Monkey's Audio, WavPack, and more. Missing tags are highlighted in red so you can see at a glance which fields need attention.
Why clean audio metadata matters
Every music player, DJ application, and streaming service relies on embedded tags to display track information. Files with missing titles or artists show up as 'Unknown' in iTunes, Serato, Rekordbox, and Spotify. Poorly tagged libraries are harder to search, harder to organise, and harder to mix from. Running your files through the metadata viewer before importing them into a DJ library helps you catch tag problems early.
What is bitrate and why does it matter
Bitrate measures how much data is used per second of audio, expressed in kilobits per second (kbps). Higher bitrate generally means better audio quality. CD-quality audio is typically ripped at 320 kbps MP3 or lossless FLAC. Tracks downloaded from streaming services or sourced at low quality may be 128 kbps or below (audible to trained ears and unsuitable for DJ sets on professional sound systems). The metadata viewer shows the estimated bitrate so you can quickly audit the quality of your library.
Frequently asked questions
What audio metadata tags does this tool read?
The viewer reads all major metadata tag formats: ID3v1 and ID3v2 (MP3), Vorbis comments (FLAC, OGG, Opus), iTunes/MP4 tags (M4A, AAC), APE tags (Monkey's Audio, WavPack, MPC), ASF tags (WMA), and RIFF/INFO chunks (WAV, AIFF). Common fields across all formats include title, artist, album, year, genre, track number, and album artwork. Technical audio properties such as duration, sample rate, bit depth, number of channels, and bitrate, are also extracted.
Are my audio files uploaded to a server?
No. All tag reading and audio decoding happens entirely in your browser using the Web Audio API and the JavaScript File API. Your files never leave your device. This tool works completely offline once the page has loaded.
What tag formats do different audio file types use?
Different audio formats use different metadata standards. MP3 files use ID3 tags (versions 1 and 2). FLAC, OGG, and Opus files use Vorbis comments. M4A and AAC files use iTunes/MP4 tags. WAV and AIFF files use RIFF/INFO chunks. WMA files use ASF tags. Monkey's Audio (APE), WavPack, and MPC files use APEv2 tags. Despite using different standards under the hood, all these formats store the same essential information (title, artist, album, artwork) which is what music players and DJ software display.
How do I fix missing or incorrect audio tags?
Audio Tag Editor is a Mac, iPhone, and iPad app that lets you view, edit, and batch-update audio metadata tags directly across MP3, FLAC, M4A, AAC, WAV, and more. You can correct titles, artists, albums, and genres, add or replace album artwork, and fix inconsistent formatting across your entire library. It is available on the App Store.