Changelog

What's changed in the RPO Decoder.

v0.3.0 2026-06-15

Multi-brand! Pick your make and decode option codes for 5 makes: GM RPO (17.1k), VW/Audi/Škoda/SEAT PR codes (14.2k), BMW (2.2k), Chrysler/Dodge/Jeep/Ram Sales Codes (836), Mercedes-Benz (602) — ~35k codes total.
Each brand's table lazy-loads on demand, so the page stays fast no matter how many makes we add.

Filled the modern/EV gap: ~670 newer codes scraped from public RPO databases — Ultium / Hummer EV / Lyriq / Blazer EV, 2024 trucks, and Corvette through 2026. ~17,150 codes total.

Folded in the ACDelco RPO catalog — ~16,500 codes now (was ~4,200), including newer 2009+ model-year codes.

Scan a photo of the glovebox SPID label to decode it — in-browser OCR, with optional Google Vision for far better accuracy.
Settings page: add your own Google Vision API key (stored only in your browser, used directly from your device) for high-accuracy label scans.
Full GM RPO catalog ingested: 4,223 codes (was ~217) — incl. the LS/LT engine family, Muncie 4-speeds, and heritage packages (Z06, ZR1, 1LE, Callaway).
Version chip + changelog in the footer.

Initial RPO decoder: paste the codes off a glovebox SPID label and get them grouped into options.
Unknown codes can be suggested via the lightbulb (Gitea-backed).