Free Tools for Site Owners

What is here

Everything here is free, needs no account and takes nothing from your readers. No keys, no dashboards, no email. Use what fits.

The lookup box

A small code lookup your readers can use without leaving your page. It carries no styling of its own, so it inherits your fonts and takes your own form CSS, and the search opens in a new tab so you keep the reader.

• Embed the lookup - one line of HTML, auto-updating, or a frozen manual snippet if you prefer no JavaScript

The data

The whole generic code list as a file, for an app, a spreadsheet or a teaching handout.

• Free code data - CSV and JSON, 9,415 codes, four columns, free including commercial use with one attribution line

Reference pages

Two pages written to be printed and pinned up, built from the questions people ask most.

• OBD-II connector pinout - all 16 pins, which carry power, ground and CAN, and what to check when a scanner will not connect
• How a code is built - the P, C, B and U families and what each digit means, with worked examples

Print styles are built in. Use the browser print command and the menu, footer and search drop out, leaving the chart on one sheet.

What we will not ask you for

• No account and no signup, on any of it
• No API key and no rate limit
• No tracking script on your pages. The embed box is a form and a small script, nothing else
• No payment. The data and the box are free, including on commercial sites

Questions

Anything unclear, or something you want that is not here? Email admin@obdcodeslist.com and say what you need.

Site owners who want to know what changed and when: what is new.