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How to Use Mp3 Tag Editor

Table of Contents

Quick Start Guide

Mp3 Tag Editor lets you edit the metadata (tags) of your audio files right in your browser — your files are read and written on your own device and are never uploaded to a server. Follow these simple steps to get started.

1

Add Your Audio Files

Open the editor and drop in up to 20 audio files, or tap to browse. We support MP3, WAV, OGG, FLAC, AAC, and M4A — and because nothing is uploaded, even very large files open instantly.

2

Edit Tags

Each file appears in its own card showing its current tags. You can edit:

  • Title
  • Artist
  • Album
  • Year
  • Genre
  • Comment
  • Album Artwork
3

Save & Download

Click "Save & Download". The new tags are written into your files directly on your device — for most files this takes under a second.

4

Download

A single file downloads directly; multiple files arrive together as one ZIP. There are no expiring links, because your files never left your device in the first place.

Video Tutorial

Watch this quick video demonstration to see how mp3-tag-editor.com works.

This video shows how to add files, edit tags and download the results with our online tag editor.

Supported Formats

Audio Formats

  • MP3 Most popular audio format with robust tag support (ID3v1 and ID3v2)
  • WAV Uncompressed high-quality audio with basic metadata support
  • OGG Open-source format using Vorbis Comments for metadata
  • FLAC Lossless compression format with excellent metadata support
  • AAC Advanced audio coding format often used by Apple
  • M4A Apple audio container format with iTunes-style metadata

Artwork Formats

For album artwork, we support the following image formats:

  • JPEG Best for photographs, offers good compression
  • PNG Ideal for graphics with transparency support
  • GIF Basic support for simple images (non-animated)

Note: Album artwork should ideally be square (1:1 aspect ratio) and at least 500×500 pixels for optimal display on most devices and media players.

Detailed Step-by-Step Process

Step 1: Adding Files

Start by opening the Tag Editor. You will see a drag-and-drop area where you can either:

Option A: Click the area to open a file browser and select up to 20 audio files.

Option B: Drag and drop files directly from your computer into this area.

Private by design: your files are read locally in your browser and are never sent to a server. There is no upload step and no practical file-size limit.

As soon as you add files, each one appears as an editable card — there is no upload button and nothing to wait for.

You can keep adding more files at any time with the "Add files" button, or remove individual files from the list.

Step 2: Editing Tags

Each file is displayed in its own card. For each file, you can modify:

Basic Information:

  • Title: Name of the track
  • Artist: Performer/creator of the track
  • Album: Name of the album

Additional Details:

  • Year: Release year
  • Genre: Musical style/category
  • Track/Disc No: Position in album
  • BPM: Beats per minute
  • Composer: Who wrote the music
  • Comments: Any additional notes

You can also add or replace album artwork by clicking the cover-art area on any card, or set one cover for every file at once from the "Apply to all" panel.

Tip: when you add two or more files, an "Apply to all" panel appears at the top — perfect for setting the artist, album, genre, year and cover once for a whole album.

Step 3: Saving Changes

After you have made all your desired changes, click the "Save & Download" button. Your modifications are applied immediately, right in your browser.

When you save, the editor:

  • Writes the new metadata into each file on your device
  • Embeds any album artwork you have added
  • Packages multiple files into a single ZIP for convenience

For most files this takes well under a second. Very large lossless files may take a moment longer.

Step 4: Downloading Your Files

The download starts automatically: one file downloads directly, several files arrive together as a single ZIP archive.

Unzip the archive (double-click on most systems) and your retagged files are ready to use in any player or library.

No expiry, no server copies: because everything happens on your device, there are no download links to expire and nothing to delete from a server — your originals on disk are untouched until you replace them.

After downloading, you can either:

  • Click "Add files" to keep editing more music in the same session
  • Close the page if you are finished

Batch Editing Multiple Files

Batch editing lets you apply the same tags to many files at once, which is especially useful for album tracks that share the artist, album, genre and year.

How to Use Batch Editing:

  1. Add multiple files (up to 20) to the editor
  2. The "Apply to all" panel appears automatically above the file cards
  3. Fill in the fields that every file should share (artist, album, genre, year)
  4. Optionally choose one cover image for all files
  5. Click "Apply to all" — every card is updated at once
  6. Fine-tune individual titles and track numbers, then "Save & Download"

Pro Tip: for a complete album, add all the tracks, use "Apply to all" for the shared information, then edit each track's title and number individually before saving.

Album Artwork Guide

Artwork Best Practices

  • Size: 500×500 pixels or larger (1000×1000px is ideal for high-resolution displays)
  • Format: JPEG for photographs, PNG for graphics with transparency
  • Aspect Ratio: 1:1 (square) for best compatibility with media players
  • File Size: Under 2MB for optimal processing
  • Quality: Clear, high-quality images with no pixelation or blurring

How Artwork Is Stored

Different audio formats store artwork in different ways:

  • MP3: Artwork is stored in the ID3v2 tag as an APIC frame
  • FLAC: Stored as a PICTURE metadata block
  • M4A/AAC: Stored in the 'covr' atom within the metadata
  • OGG: Uses the METADATA_BLOCK_PICTURE field in Vorbis Comments
  • WAV: Limited support in ID3 or LIST-INFO chunk

Finding Good Album Artwork

If you need to find album artwork for your music files, here are some suggested methods:

  • 1. Official Sources: The artist's or record label's official website often has high-quality album art available.
  • 2. Music Databases: Sites like MusicBrainz, Discogs, or Last.fm maintain extensive artwork collections.
  • 3. Digital Music Stores: iTunes, Amazon Music, or Google Play Music often display album artwork that you can save.
  • 4. Image Search: Search for "[album name] [artist] album cover" on Google Images or similar search engines.

Important: Always respect copyright when using album artwork. Ideally, only use artwork for albums you have purchased or have rights to.

More Free Audio Tools

Tag editing is only one part of this site — it also includes a full suite of free audio tools, all running privately in your browser with no upload and no signup:

Audio Converter Convert between MP3, WAV, FLAC, M4A, AAC, OGG and OPUS. Audio Trimmer Cut any audio file to the exact part you want with a visual waveform. Ringtone Maker Turn any song into a ringtone for iPhone (.m4r) or Android (.mp3) — up to 30 seconds. Video to MP3 Extract the audio track from any video and save it as an MP3. Audio Merger Join several audio files into one track — reorder them however you like. Audio Compressor Shrink audio files so they’re easy to email, message or upload. Vocal Remover Strip the lead vocals from a song to make a karaoke or instrumental version. BPM Detector Find the tempo (beats per minute) of any track instantly. Audio Normalizer Even out loudness so your audio plays at a consistent, professional level. Music Equalizer Fine-tune bass, mids and treble with a graphic EQ. Bass Booster Add deep, punchy bass to any track. Change Audio Speed Speed up or slow down audio — the pitch stays natural. Change Pitch Shift the pitch up or down by semitones — the tempo stays the same. Change Volume Boost a quiet recording or turn down one that’s too loud. Slowed + Reverb Give any song the dreamy, viral “slowed and reverb” sound. 8D Audio Maker Turn a song into immersive 8D / 3D audio that swirls around your head. Silence Remover Automatically cut silent gaps and dead air from your audio. Reverse Audio Flip any track so it plays backwards. Video Silence Remover Automatically cut the silent gaps out of your video — a fast “jump cut”.

Tools →

Tips and Tricks

Organization Tips

  • Consistent Naming Conventions

    Use consistent capitalization and formatting for artist names and album titles to keep your library organized.

  • Use Track Numbers Properly

    For albums, always include the track number to ensure proper ordering in media players.

  • Include Year Information

    Adding the release year helps distinguish between different versions or remasters of the same album.

  • Be Specific with Genres

    Use specific genre tags rather than general ones (e.g., "Progressive Rock" instead of just "Rock").

  • Use Comments for Additional Info

    The comments field is great for extra information like recording location, version details or personal notes.

Power User Tips

  • Keyboard Shortcuts

    Use Tab to quickly navigate between form fields while editing tags.

  • Drag and Drop Anywhere

    You can drag audio files straight onto the drop zone, and drag a cover image directly onto any file card.

  • Batch Processing Strategy

    For an album, first batch edit the common fields, then individually edit track-specific information like title and track number.

  • Optimize Artwork Size

    Resize very large cover images to around 1000×1000 pixels before adding them — smaller embedded art keeps your audio files lean.

  • Browser Compatibility

    Any current browser works: Chrome, Firefox, Edge and Safari all support the in-browser engine. Only very old browsers without WebAssembly are unsupported.

Troubleshooting

Files Won't Open

Problem: a file won't open in the editor or shows an error

Possible solutions:

  • Check that the format is supported (MP3, WAV, OGG, FLAC, M4A, AAC)
  • Make sure the file plays normally in a media player — a corrupted file cannot be edited
  • Try a current browser (Chrome, Firefox, Edge or Safari)
  • On phones, very large files can run out of memory — try a desktop browser
  • Try adding files one at a time to find the problematic one

Editing Problems

Problem: Changes don't save or artwork doesn't appear

Possible solutions:

  • Make sure your artwork file is in JPEG, PNG, or GIF format
  • Ensure artwork is less than 2MB in size
  • If a specific field isn't saving, try simplifying the text (some characters might cause issues)
  • Check that you are using valid values (e.g., year should be a number)
  • Refresh the page and re-add the files if all else fails

Download Issues

Problem: the download doesn't start or the ZIP won't save

Possible solutions:

  • Check that your browser isn't blocking automatic downloads for this site
  • Make sure you have sufficient disk space on your device
  • Try a different browser if downloads fail
  • Disable any download managers or browser extensions that might interfere
  • For many large files, save in smaller batches

Playback After Editing

Problem: Edited files don't show new tags in your media player

Possible solutions:

  • Refresh your media library or restart your media player
  • Some players cache information and need to be refreshed manually
  • Check if your media player supports the tag format being used
  • Try playing the file in a different media player to verify the tags are saved correctly

Need Help?

If you are experiencing issues or have questions not covered here, please contact our support team:

  • Email: mp3te_admin@protonmail.com
  • Response time: Usually within 24 hours