GS1 Digital Link Generator

About the GS1 Digital Link generator

The ReadBarcode GS1 Digital Link generator builds a standards-compliant resolver URL from a GTIN and the most common GS1 Application Identifiers, then renders it as a QR code or Data Matrix. The URL follows the GS1 Digital Link URI Syntax — the same format retailers and brands are adopting for Sunrise 2027.

GTINs are normalised to 14 digits and check-digit verified, batch and serial are placed in the URL path, and dated attributes (expiry, best-before, net weight) are appended as query parameters. Everything runs in your browser with the open-source qrcode and bwip-js libraries.

When to Use It

• Trialling Sunrise 2027 compatible labels on consumer packaging.
• Linking a single 2D code to product info, instructions and traceability.
• Encoding GTIN + batch + expiry for healthcare or food shipments.
• Generating variable-weight Data Matrix codes for fresh produce or deli.
• Migrating from GS1-128 to a Digital Link URL on the same artwork.
• Producing test codes for POS, e-commerce and warehouse scanner trials.

How It Works

1. Pick a resolver Default to https://id.gs1.org or point to your brand resolver if you operate one.
2. Enter the GTIN GTIN-8/12/13/14. The check digit is verified and the value is padded to 14 digits.
3. Add AIs as needed Batch (10), serial (21) and dated attributes (15, 17, 3103). All optional.
4. Choose QR or DM QR for consumer phones; Data Matrix for healthcare, fresh food and small parts.
5. Download PNG or SVG SVG for print artwork; PNG for screens and quick proofs.

What to Avoid

• Hand-rolling the URL — get the path-vs-query split for path AIs vs data attributes wrong and many scanners will reject it.
• Skipping the GTIN check digit — the URL will validate as a string but fail every conformance check.
• Encoding sensitive data (lot recall flags, internal SKUs) in the URL — anyone scanning sees it in plain text.
• Forgetting to print human-readable GTIN + batch + expiry near the 2D code for backup.
• Rolling out at scale before testing on the actual retailer's POS scanner.

Tips & Tricks

• Use this together with the GS1 Digital Link Decoder on this site to round-trip-test your output.
• Keep URLs short — the longer the payload, the denser (and harder to scan) the 2D code.
• For variable-weight items, pair GTIN + 3103 (net weight) — most POS systems already understand it.
• Stick to https:// resolvers — some scanners reject http for security policy reasons.
• If you migrate from GS1-128, keep the same GTIN so existing master data still matches.

Private by Default

URLs are composed and rendered locally with qrcode and bwip-js. The GTIN, batch, serial and other values you enter never touch our servers.

GS1 Digital Link Example You Can Copy

The defaults produce a working example for GTIN 09506000134352, the sample GTIN in GS1's documentation, and optional fields extend it:

https://id.gs1.org/01/09506000134352
https://id.gs1.org/01/09506000134352/10/ABC123?17=261231

Batch and serial go in the path, while expiry, best-before and net weight go in the query string, so 17=261231 is an expiry of 31 December 2026. Paste the result into the GS1 Digital Link decoder to check each value, or see the GS1 Digital Link guide for the reasoning behind the split.

GS1 Digital Link QR Code or Data Matrix

Both symbols carry the same URL, so pick the one your scanners and artwork already support.

As a GS1 Digital Link QR code generator, the page uses error correction level M and a 2-module margin, so leave more white space on the artwork to reach the 4-module quiet zone the QR standard asks for. The Sunrise 2027 guide explains why checkout scanners are moving to 2D.

GS1 Digital Link Data Matrix Generator

In Data Matrix mode, bwip-js picks the smallest square symbol that holds the URL, and each extra Application Identifier enlarges the grid. Choose URL only when your label software draws the symbol and needs just the link text from this GS1 Digital Link creator.

Frequently Asked Questions