Decoder

Track 1 Decoder

Parses the Format B Track 1 stripe (the line starting with %B) into its constituent fields. Useful when working with capture data from magstripe readers or for sanity-checking test track data. Runs entirely in your browser.

Track 1 dataMust start with %B and end with ?. The string stays in your browser.

Privacy

Runs entirely in your browser — nothing is sent to any server.

Cost

Free. No sign-up, no watermark.

Type

Decoder