Map your identifiers
GTIN, SSCC, batch, serial and expiry are bound to fields — not typed into a barcode by hand.
GS1 Standards
GS1 barcodes that scan the first time.
GTIN, SSCC and GS1-128 with the application identifiers and check digits handled for you.
A GS1 barcode is only correct if the application identifiers, the FNC1 separators and the check digit are all right — TEC-IT calculates them from your data so the symbol that reaches your customer's scanner decodes exactly as their system expects.
A GS1 barcode that is 99% right is a rejected delivery.
Generate application identifiers, separators and check digits from your data.
Variable-length application identifiers need an FNC1 separator in the right position. GTINs need a Modulo-10 check digit. An SSCC needs eighteen digits with the correct extension. Get one wrong and the symbol still prints, still looks fine, and still fails at your customer's goods-in. TEC-IT's barcode engine builds the data string from your fields and inserts the separators automatically — so correctness is a property of the software, not of the person who filled in the form.
Let the engine encode
Application identifiers, FNC1 separators and check digits are generated from the data automatically.
Print to spec
Module width, quiet zones and bearer bars are set for your printer resolution, so the symbol grades.
GS1 codes that scan first time.
Standards, data and printing as one system.
Standard-true templates
GS1 application-identifier layouts are designed once and reused across every trade item.
AI syntax verified
Every AI string is checked against the GS1 General Specifications before it prints.
Standards-safe output
Send the same verified GS1 definition to physical printers, PDF workflows or an API response.
The products behind GS1 Barcodes & Standards.
Every solution maps to proven, licensable products.
Barcode Studio
Creates GS1-128, GS1 DataBar and GS1 DataMatrix symbols with automatic FNC1 insertion and serial numbers.
TBarCode SDK
Generates GS1 symbologies from your own code, with the current application identifier set.
// generate a barcode
var bc = new Barcode();
bc.Type = "QRCode";
bc.Save("out.png");
TFORMer Designer
Places GS1 barcodes on pallet, carton and logistics labels alongside the human-readable text.
9 012345 678905
Online Barcode Generator
Try any GS1 symbology in the browser before you license anything.
barcode.tec-it.com
Standards engine
One barcode engine, every GS1 carrier.
GS1-128, GS1 DataBar, GS1 DataMatrix and GS1 Digital Link from the same data model.
1 billion+
barcodes generated with TEC-IT software
100+
barcode symbologies, including the full GS1 carrier set
20,000+
customers run TEC-IT software worldwide
Certified-clean output.
Codes that pass GS1 verification the first time.
Spec-checked
Quiet zones, X-dimension and AI syntax are enforced by the engine, not the operator.
Verified before print
Every code is checked against the General Specifications before it leaves.
Consistent everywhere
The same spec-true output on every printer and site.
Customer stories
How companies run identification, labeling and data capture on TEC-IT software – in production, logistics and IT.
Frequently asked questions
Learn more about GS1 Barcodes & Standards.
What is an Application Identifier?
A prefix that tells the receiving system what the following data means — (00) SSCC, (01) GTIN, (10) batch/lot, (15) best-before. Encoding them incorrectly is the most common reason a scannable code is still rejected.
What is FNC1 and why does it matter?
FNC1 marks a GS1 symbol and separates variable-length fields. Omit it and the receiver reads one long, meaningless string. TEC-IT inserts FNC1 automatically according to the GS1 General Specifications.
Which GS1 symbologies are supported?
GS1-128, GS1 DataMatrix, GS1 DataBar in its variants, GS1 Composite and GS1 Digital Link — with the AIs pre-defined rather than hand-assembled.
How do we verify a code before shipping?
Check structure and print quality separately: structure via the AI encoding, print quality with a verifier against ISO/IEC 15416 (linear) or 15415 (2D). A phone camera confirms neither.
More resources
Guide
GS1 Application Identifiers explained
Understand how GS1 AI fields structure product, batch, date and serial data.
GuidePrepare barcode output for Sunrise 2027
Understand GS1’s 2027 ambition and what it means for verified barcode output.
GuideGS1 DataBar and Composite symbols
Explore DataBar and composite symbol options for compact GS1 data.