How to use the Add Album Art to MP3
- Choose the MP3 (or M4A, FLAC).
- Choose a cover image (JPG or PNG; square looks best).
- Click Add album art.
- Download the MP3 with its new cover.
Image tips
Square images of 500–1000 px work everywhere. Larger images are scaled down to 1000 px so the MP3 does not grow unnecessarily. The image is stored as the "front cover", which is what players display.
Audio stays untouched
MP3 audio is copied without re-encoding, so the sound is exactly the same as before.
Good to know
The image is stored as the "front cover" picture and scaled down to 1000 pixels wide if it is larger. MP3 files are written with ID3v2.3 tags, the version every player reads.
Supported files
MP3, WAV, M4A, AAC, OGG, OGA, FLAC, OPUS, WMA, AIFF, AIF, AIFC, ALAC, AMR, AC3, MP2, M4B, M4R, CAF, AU, WEBA, 3GA, APE and VOC. Files up to 1 GB each.
Frequently asked questions
The cover does not show on my phone
Some apps cache artwork. Remove the song from the app's library and add it again.
Do I have to pay or sign up to use the Add Album Art to MP3?
No. There is no account, no payment and no watermark. The only limit is 1 GB per file, set by what browsers can handle.
Is my file uploaded to a server?
No. The converter runs inside your browser using WebAssembly, so your file is processed on your own device and never sent to us or anyone else.
Does it work on iPhone and Android?
Yes, in Safari, Chrome and other modern mobile browsers. Short files work best on phones; for long or high-resolution videos a computer is faster.