GTIN-14 check digit

Client

Logistics GTIN-14 packaging level check digit.

About GTIN-14 check digit

Mod-10 check digit for 13-digit GTIN-14 body. The interactive transform on this page runs in your browser tab—Toolcore does not need your paste for the core operation described above.

How to use this page

Paste or type in the main workspace, run the primary action from the toolbar, then copy or download the result. Use Load example when the page offers it, or URL prefill (?q= / ?qb=) so agents and tickets open the same input.

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Nearby workflows on Toolcore

  • GTIN checksum (EAN / UPC) — Paste GTIN‑8, UPC‑A (GTIN‑12), EAN‑13, or logistic GTIN‑14 digits—ISO GS1 modulus‑10 parity without GS1 lookup—browser-only. when another identifier column uses a different checksum ruleset.
  • SSCC checksum — 18-digit Serial Shipping Container Code—GS1 modulus‑10 check digit; optional (00) prefix stripped; no registry lookup; browser-only. when another identifier column uses a different checksum ruleset.
  • ITF-14 check digit — Validate Interleaved 2 of 5 ITF-14 carton code. when another identifier column uses a different checksum ruleset.
  • E.164 phone normalize — Strip formatting, normalize + / 00 / 011, validate ITU-style length; NANP +1 hint for 10-digit US/CA style—local only. when another identifier column uses a different checksum ruleset.

Common use cases

  • GTIN-14 check digit for quick local checks without uploading data.
  • Copy results into tickets, docs, or classroom notes.

Common mistakes to avoid

  • Unexpected input shape

    See the intro and how-to notes for accepted formats.

FAQ

Is processing local?

Yes—this runs entirely in your browser.

Agent prefill?

Use q or qb for the main text field when supported.

More tools

Related utilities you can open in another tab—mostly client-side.