The Boss stompbox serial number decoder

You can use this tool to find the manufacture date of any device made by Boss (as well as the very early roland branded pedals). It works by decoding the date code part of the serial number, as the date code on Boss devices was repeated my database of Boss manufacture ranges will then help to narrow it down. For pedals manufactured for a long time you may be returned multiple possible dates. Boss have used three formats for their serial numbers over the years. Pre 1989, 1989-2010, and 2010 to date. This tool now supports all three formats.

For details of my database click here. For Roland products please use the separate Roland decoder as that has the database for the Roland production dates.
You can normally find the serial inside the battery compartment or on a sticker on the base.

Serial :
Model : (leave blank if its not in the list)