Show HN: Engine.codes – read OBD-II codes in the browser, no app, no cost

3 matthiasq 2 5/18/2025, 8:26:33 PM engine.codes ↗
Most OBD scanners hide the basics behind pricey hardware or subscriptions. My free, browser-only OBD-II tool lets you plug in a $10 BLE dongle, tap Connect, and instantly:

* auto-detect your VIN

* read Mode 03 / 07 trouble codes

* keep your data private—no cookies, no VIN tracking

Give it a spin and let me know which BLE adapters work (or don’t) for you!

Comments (2)

bityard · 2h ago
This is very interesting to me but the source link at the bottom of the page is 404.
matthiasq · 2h ago
Thanks for the feedback. I removed the source link now. If you're interested in the OBD2 client source, it's self-contained in the Javascript sent to the browser.