Free GTIN/EAN toolfree tool

Check whether a GTIN or EAN is structurally valid.

Paste one identifier or a short list. The tool returns format, length, checksum status, normalization notes, invalid rows, and a Central handoff for using valid identifiers in enrichment and feed workflows.

Format checkchecksum statusinvalid rows flaggedCentral workflow bridge
Input1 session
Identifier input inputTextarea for one GTIN/EAN or newline-separated list.
Country/format hint select
StandardChannelCustom
Optional select if implementation supports it.
Normalize spaces inputCheckbox enabled by default.
Export results inputOptional CSV copy/download for list validation.
Continue in Central inputCTA to import valid identifiers as catalog input.
Try exampleClear
Result · Free toolchecksum passed
valid
checksum passed
quick utilityreview warningsCentral handoff
Ready output

GTIN-13 format detected.

Finding

Checksum is valid.

Finding

Use as a merchant identifier before enrichment.

Finding

Status: Valid format, invalid checksum, unsupported length, or empty row.

Finding

Normalized value: Identifier stripped of spaces or separators.

Finding

Row-level results: For bulk input, show valid/invalid list.

→ continue in Central
verified scope

Lightweight limit and Central bridge

GTIN and EAN checks are useful because bad identifiers break imports and feeds. But a structurally valid identifier does not prove that the product record is correct.

what it can do

Use the free tool for one focused product task.

  • Status: Valid format, invalid checksum, unsupported length, or empty row.
  • Normalized value: Identifier stripped of spaces or separators.
  • Row-level results: For bulk input, show valid/invalid list.
  • Warning: "Valid format does not verify product identity."
where Central adds proof

Connect the task to verified product records.

The tool can confirm structure. It cannot prove brand, title, image, pack count, or product identity.

Inside Central, GTIN/EAN values can help gather sources, match products, verify facts, and generate feed-ready output from the product record.

from utility to workflow

Useful once. Stronger when it is connected to the product record.

A free tool helps with one product. Central connects the same work to sources, confidence, review states, and channel-ready outputs.

free tool

One product task

Paste one URL, title, field, image, feed row, or schema snippet and get a practical output.

→
central verification

Sources + confidence

Central verifies the product record, tracks confidence, and keeps weak claims in review.

→
reusable output

Catalog workflow

Use the same rule across product pages, feeds, schema, widgets, marketplaces, or custom exports.

proof artifact

Proof artifact: identifier check to enriched record

Before
Free tool result
Central workflow result
Catalog row has EAN, title, price, and no specs.
EAN normalized and checksum valid.
Central uses the identifier with product URL/source discovery to enrich the record.
One row has invalid checksum.
Row flagged before import.
Invalid identifier routed to review before feed output.
Valid format only.
Warning shown.
Product facts still require sources, confidence, and review state.
FAQ

Questions before you start.

Does a valid GTIN prove the product is real?

+

No. It only passes structure and checksum checks. Product identity still needs verification.

Can I validate a list?

+

Yes where implemented. Show row-level results and invalid rows.

Will Central change my identifiers?

+

Identifiers are factual invariants. Central should preserve them unless a review process corrects an invalid value.

Can GTINs help enrichment?

+

Yes. They can help Central find product sources and match records, but they do not replace source verification.