Add Album Cover to MP3 Online
Embed a custom image or a licensed ready-made cover inside an MP3. The editor changes the picture frame, keeps the original audio stream, and gives you a verified new file without uploading either file.
Choose your MP3
Click Choose MP3 or drop a file here. Up to 1000 MB; use a desktop computer for files over 150 MB.
Choose a cover
Upload your own image or use a curated cover.
Add cover and download
A new MP3 is created. Your original file is never overwritten.
Complete the task in three clear steps
- 1
Choose the MP3
Select or drop an MP3 up to 1000 MB. The browser reads only the ID3 area needed to inspect its current title, artist, album, and artwork.
- 2
Prepare the cover
Upload JPG, PNG, or WebP artwork, or choose a licensed image. Crop, zoom, and position it in the square preview.
- 3
Embed and download
Create a new MP3 with a 1000 × 1000 JPEG front cover. The result is reopened in memory to confirm that the image was written.
What the browser changes—and what it leaves alone
An MP3 cover is normally stored in an ID3 picture frame near the beginning of the file. This tool rebuilds that tag area instead of re-encoding the music. Existing title, artist, album, lyrics, and unknown frames are copied through wherever the supported tag structure allows it.
Replacing embedded artwork does not modify the source file. The download uses a new filename, so you can compare both versions in your music player. Some library apps cache artwork or replace it with artwork from an online catalog; refreshing or re-adding the local file may be necessary.
When this tool is a practical fit
- Personal music libraries with missing or incorrect artwork
- Podcasts, demos, voice notes, and DJ files that need a recognizable thumbnail
- Preparing a consistent square image before moving audio to another device
Supported behavior and honest limits
- Reads common ID3v2.2, ID3v2.3, and ID3v2.4 tags
- Accepts JPG, PNG, and WebP input; embeds a broadly compatible JPEG
- Stops on uncommon compressed, globally unsynchronised, or footer-based tags rather than risking metadata loss
Frequently asked questions
Does this overwrite an existing MP3 cover?
The new downloaded copy contains one new front-cover frame. Existing embedded picture frames are removed from that copy; the original file on your device is untouched.
Will adding a cover reduce audio quality?
No. The audio bytes are reused without decoding or re-encoding, so this operation does not change bitrate or sound quality.
Why can a music app still show the old artwork?
Players may cache artwork or match a track against an online catalog. Try a new filename, refresh the library, or remove and re-add the downloaded file.