Artists sending promos
A promo MP3 with the cover inside looks finished in a curator’s player, not like an anonymous file.
EzVisualizer lets you add album art to MP3 files for free, right in your browser. Drop the songs, add a JPG, PNG or WebP, crop it square and save: the cover is embedded in each file, so phones, car displays and players show it. Nothing is uploaded and the audio is never touched.
A cover for MP3 files is not a separate image sitting next to the song. It lives inside the file, in the ID3 tag at the start of the MP3, as a picture frame that holds the image itself, its type (JPG or PNG) and a label saying what it is: front cover, back cover, artist photo and so on. Players look for the front cover and show it on the lock screen, the car display and the desktop app. A folder.jpg next to your files only works in some apps and gets lost when you copy one song somewhere else. When you add album art to MP3 files, the art travels with each file, wherever it goes.
Add a Cover NowA cover tool that does the fiddly parts for you, without an install or an upload.
The songs and the picture are read and written inside your browser tab. Unreleased tracks stay private.
Players expect a square cover. Drag the crop box over any photo, or keep the whole image on a black, white or blurred fill.
Resize to 1000, 1400 or 3000 pixels, so a 12 megapixel phone photo does not add megabytes to every track. Already sized? Embed the JPG or PNG as it is.
Select every track and apply the picture to all of them at once, instead of one file at a time.
Only the tag changes. The audio frames are copied byte for byte, so the song sounds exactly as before.
Works in a current browser on Windows, macOS, Linux and ChromeOS, free and with no account. FLAC and M4A files take covers too.
Here is how to add album art to an MP3, or to a whole album, in three steps.
Drag one song or a whole album onto the editor at the top of this page. Each file shows its current cover, or an empty square if it has none.
Choose a JPG, PNG or WebP, drag the crop box to frame it square and pick 1000, 1400 or 3000 pixels. Apply it to one file or to every selected file.
Download one MP3 or every edited file in a ZIP. The cover is now embedded, the audio inside is unchanged, and your original files stay as they were.
An MP3 cover adder that also checks the picture, so it shows up everywhere you play the song.
Drop in any picture: a photo, a poster, a screenshot. Drag the crop box to choose the square, then pick a size. 1000 pixels is plenty for phones and car displays, 1400 matches what podcast apps ask for, and 3000 is the size distributors want for a release. If the crop is smaller than the size you pick, the editor warns you that it will look soft. Need artwork first? Design it in the album cover maker.
Crop a CoverSelect all twelve tracks, add the picture once and apply it to every file. Each MP3 gets its own copy of the cover, so a single song copied to a phone or a USB stick still shows the art. While the album is open, fix the album name and track numbers in the MP3 tag editor.
Cover an AlbumEach file shows the art it already has. Save it as an image file, replace it, or delete it, so the editor works as an MP3 cover editor and an album art remover in one. Handy when a download came with the wrong art or a huge picture.
Check My CoversDrop the saved file back on the editor and the cover is there. On Windows, File Explorer shows it as the file icon in Large icons view; on a Mac, select the file and press Space for Quick Look. VLC and the Music app show it while the song plays.
Try ItAfter you add album art to MP3 files, this is how the cover is stored: cropped, sized and labeled as the front cover.
What you are looking at
Add a picture to MP3 files here and this is what gets written. The picture frame of a saved MP3: front cover, JPG, 1400×1400 pixels, inside an ID3v2.3 tag in front of the audio. The same frame is copied into every track you apply it to. Want this cover on screen, not just in the file? Turn the MP3 and its art into a video with MP3 to MP4.
Before you add album art to MP3 files, size it. The short answer: a square JPG between 1000 and 3000 pixels.
Players draw the cover in a square. A wide picture gets squeezed or cut, so crop it yourself and choose what stays.
1000×1000 is sharp on any phone. 3000×3000 is what stores and distributors ask for. The album cover size guide lists every platform.
JPG keeps photos small. PNG suits flat artwork with text, but the file is larger. Both are standard in ID3 tags.
Every track carries its own copy. A 3 MB picture on a 12 track album adds 36 MB; at 1000 pixels the same cover is a few hundred KB.
Specs checked November 2026.
| This siteEzVisualizer | |
|---|---|
| Files | MP3, plus FLAC and M4A; up to 1,000 per session |
| Picture in | JPG, PNG or WebP, up to 40 MB |
| Crop and size | Square crop or whole image on a fill; 1000, 1400 or 3000 px, or the original |
| Saved as | JPG (quality you choose) or PNG |
| Stored as | Front cover in an ID3v2.3 tag (MP3), a picture block (FLAC) or the cover atom (M4A) |
| Batch | One cover applied to every selected file |
| Also | View, save as image, replace or remove the current cover |
| Save | One file or a ZIP of new copies; originals never changed |
| Audio | Never re-encoded; audio copied byte for byte |
| Price | Free, no sign-up, nothing uploaded |
The usual routes to add album art to MP3 files, by type of tool. Based on how each typically works; your app may differ.
| This siteEzVisualizer | Desktop taggers | Music player apps | Phone apps | |
|---|---|---|---|---|
| Install | None | Yes | Usually already installed | Yes |
| Crop and resize | Built in | Some, often via plugins | Rarely | Varies |
| Whole album at once | Yes | Yes | Often, for songs in the library | Varies |
| Written into the file | Yes | Yes | Depends on the app | Depends on the app |
| Files uploaded | No | No | No | Sometimes, for online lookups |
| Price | Free | Free or paid | Free | Often with ads |
Anyone whose songs play from a file rather than a streaming app needs a cover for MP3 files.
A promo MP3 with the cover inside looks finished in a curator’s player, not like an anonymous file.
Album art makes a crate easier to scan. Put a cover on MP3 files bought or recorded without one.
Embed the show art in each episode file, at 1400 pixels, for listeners who download and play the MP3 directly.
CD rips from years ago often have no art. Find album covers for MP3 folders, then check each MP3's cover, album title and track numbers, album by album.
A USB stick in the car or files on a phone look far better with a cover on each song.
Give every chapter the book cover, so the player shows which title you are listening to.
Sizes, formats, checks and the cases where the cover does not show.
Drop the MP3 on the editor at the top of this page, add a JPG, PNG or WebP, crop it square, pick a size and download the file. The cover is written into the file as the front cover. That is how to add album art to an MP3 on any computer, with nothing to install.
Use a browser tool like this one: it needs no install on Windows, Mac, Linux or a Chromebook. Built-in options are thin. Windows File Explorer cannot add a cover, and the Music app on a Mac only does it for songs in its library (Get Info, then Artwork).
A square image of 1000×1000 to 3000×3000 pixels. 1000 to 1400 is enough for phones, cars and players and keeps each file small; 3000 matches what distributors ask for. See the album cover size guide for platform sizes.
JPG for photos and most artwork, since it is much smaller. PNG for flat graphics with sharp text. Both work in ID3 tags, and every common player reads them.
Drop the saved file back on the editor: the cover shows in its row. On Windows, switch File Explorer to Large icons and the cover becomes the file icon. On a Mac, select the file and press Space. VLC, the Music app and phone players show it while the song plays.
Yes. Select the files, add the picture once and apply it to all of them, then save them as a ZIP. Each file gets its own copy, so the art stays even when one song is copied on its own.
Some car stereos show no album art at all, and some skip covers that are very large. Try a square JPG at 1000 pixels or less, saved by EzVisualizer as the front cover in an ID3v2.3 tag, the version most head units read. If it still does not show, the stereo probably does not support covers.
Not here: this tool can add album art (MP3, FLAC and M4A files) but does not write WAV. A WAV can carry a picture in an extra tag chunk, but many players ignore it. Desktop taggers such as Mp3tag or Kid3 can add cover art to WAV files; for a release, distributors take the cover as a separate upload anyway.
No. The cover goes into the tag and the audio frames are copied byte for byte. The file grows by the size of the picture, nothing else changes.
Yes. Drop the file, open the Cover tab and download its current art as an image. Useful when you want the same cover for a playlist, another file or a video made with the audio visualizer.
Select the file, remove the cover and download it. It works as an album art remover for one file or a whole selection, and leaves the other tags and the audio as they were.
For your own music, design one in the album cover maker. For albums you own, search MusicBrainz from the editor to confirm the release, then add the cover from your CD booklet scan or a picture you have the rights to, the right album cover for MP3 copies of it. Only the artist and title you type are sent.
Yes. It opens in the browser on iPhone and Android, so you can add an image to MP3 files on the go. Selecting many files is easier on a computer.
It is free with no sign-up, and nothing is uploaded: the files are read and saved inside your browser tab. Add album art to MP3 files as often as you like, up to 1,000 at a time.
The same artwork, on every screen your song plays on.
Drop your songs on the editor, add the picture and save. Add album art to MP3 files free, with nothing uploaded and the audio untouched.