How big can the audio file be?

Up to 50 MB, which counts towards your plan’s storage.

Do listeners need an app?

No. The audio plays in the phone’s browser.

Yes. Upload a new file and the printed code plays that one.

Scans are counted with time, city and device. Play counts are not shown separately.

dynamic · free trial

Upload the audio, print the code. A scan plays it in the phone’s browser — for tours, exhibits, demos and messages.

build · voxel · click the code to replay

An MP3 code opens a hosted page with an audio player. The file is stored for you; nothing to install for the listener.

Replace the file and the printed label plays the new recording.

01
Enter the file
Type it in the generator above. The preview rebuilds as you go.
02
Style the code
Colours, module shapes and a logo in the editor. Contrast is checked live.
03
Generate and test
Scan it with an iPhone and an Android before sending it anywhere.
04
Print at 14 mm or more
Keep four modules of quiet zone clear on every side.

How big can the audio file be?: Up to 50 MB, which counts towards your plan’s storage.
Do listeners need an app?: No. The audio plays in the phone’s browser.
Can I replace the recording later?: Yes. Upload a new file and the printed code plays that one.
Can I see how many people listened?: Scans are counted with time, city and device. Play counts are not shown separately.

Ready-made designs, scan-tested, for the industries that print this code. Pick one and make it yours.