A size translator we built to learn what's broken.
The ALTAANA Chrome extension is a research tool. It returns translated size recommendations to shoppers across brands, and gives us the data we use to build our brand-side grading product. You're here because someone invited you. Thank you.
What it does
On supported product detail pages, ALTAANA reads the garment's fabric and construction details, references your sizing anchor from a brand you already know, and returns a recommended size for the brand you're shopping.
It was trained on 12 brands. It now extends with reasonable confidence to dozens of brands it was never trained on, that's the signal we're studying. Some recommendations will be solid. Some will be wrong. We need both.
Trained on 12 · Extending to dozens
Four brands. None of them in the original training set.
What to expect
- This is a research tool, not a finished product. It will surprise you in both directions.
- Some recommendations return template responses for fabric and construction reasoning. Known issue; on the list.
- Brand names sometimes display in raw lowercase or with underscores instead of proper formatting. Cosmetic bug, fix incoming.
Install
The extension is hosted on the Chrome Web Store as an unlisted listing, only accessible via the link below.
Chrome and Chromium browsers (Arc, Brave, Edge). ~30 seconds.
What we collect, and what we don't
We collect
Anonymized data about which size was recommended, whether you accepted or changed it, and any feedback you submit through the extension. All tied to an anonymous extension ID.
We don't collect
Your name, email, billing info, browsing history outside the pages where the extension activates, or anything that could identify you personally.
What one record looks like
{
"session_id": "a9f3-2c81-7b04",
"size_offered": "M",
"size_kept": "M",
"feedback": "thumbs_up",
"timestamp": "2026-05-28T14:22:00Z"
}No name, no email, no IP. This is the entirety of one recommendation in our database.
Illustrative, structure may evolve.
How to give feedback
Inside the extension, every recommendation has a thumbs up and thumbs down. Use them generously, wrong answers are more useful to us than right ones right now.
For longer feedback, write directly: contact@anaisdevereaux.com
Who's behind it
ALTAANA is built by Anaïs Devereaux, 5+ years in fashion and product design, currently building the grading infrastructure layer for fashion brands. This extension is how we test our assumptions.
For investors and brand partners interested in the production-side tool, see altaanaessential.io.