GTIN Check Snap

by tianrenmao · Workflow & Planning

Manifest V3 Free

View in Chrome Web Store Data as of 16 Oct 2026

Validate and complete UPC, EAN, GTIN, and ISBN check digits locally.

Users

−1 in 30 days

Rating

0.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#346K

#267K among extensions

Version

1.0.0

updated 24 May 2026

Users

monthly, 5 months

Latest, 16 Oct 2026: 3 usersMove the mouse over the chart for any month

Ratings count

monthly, 5 months

Latest, 16 Oct 2026: 0 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About GTIN Check Snap

GTIN Check Snap gives you fast product and book identifier check-digit checks from the Chrome toolbar. Use it to validate UPC-A, EAN-8, EAN-13, GTIN-14, ISBN-10, and ISBN-13 values before you paste them into listings, spreadsheets, catalogs, inventory records, or upload templates. Features: - Validate full UPC-A / GTIN-12, EAN-8, EAN-13 / GTIN-13, GTIN-14, ISBN-10, and ISBN-13 identifiers. - Calculate the missing check digit from a supported prefix. - Clean pasted spaces and hyphens automatically. - Auto-detect common identifier lengths. - Copy the completed code or a concise validation note. - Runs locally with no account, no backend, no network calls, and no requested Chrome permissions. GTIN Check Snap is an identifier math helper. It does not look up product ownership, product metadata, GS1 licensing, marketplace eligibility, or catalog authority. Always verify official product, publisher, marketplace, and inventory requirements where they apply.