Check the spec
Charset, lengths and check-digit rules for this symbology are listed above — the form enforces them instantly.
Free tools · Barcodes
Generate SSCC-18 codes that scan.
Serial Shipping Container Code with computed/verified check digit. Type the payload for SSCC-18 below — validation, check digits and a local scan-test run in your browser before anything exports.
Barcode generator
Type text, get a symbol.
Runs locally in your browser. Nothing is uploaded; the field clears after ten idle minutes.
Advanced (GS1, checks, profiles, retail add-ons, supply-chain carrier)
Style (readable text, bar height, export size)
Bar height stretches bars vertically, which scanners ignore (only horizontal timing matters). The SVG download keeps the engine's exact geometry.
Specification
| Standards | GS1 General Specifications |
|---|---|
| Character set | Digits only; Mod-10 check digit is computed or verified locally. |
| Lengths | 17 digits (check computed) or 18 digits |
| Check digits | Mod-10 SSCC check digit computed or verified. |
| Quiet zone | 10X quiet zone. |
| Capacity | 17 digits in, 18 out. |
Usage
SSCC-18 identifies cartons and containers moving through warehouses: print it large on cases where logistics scanners expect GS1 data.
- SSCC-18 on corrugated cartons for warehouse receiving
- SSCC-18 on pallet labels alongside human-readable GTIN
- SSCC-18 proofs exported as SVG for thermal printers
Shape
Pros
- SSCC-18 carries GS1 identifiers that warehouse systems already understand.
- Carrier choice (ITF-14 vs GS1-128) is explicit where the standard allows it.
- Print SVG uses profile-correct geometry for cartons and pallets.
- Every symbol is decoded again locally before it is shown.
Cons
- SSCC-18 needs large, high-contrast prints — small inkjet labels fail.
- Corrugated texture and shadows lower first-pass reads.
- Wrong carrier selection confuses receiving systems.
- Screenshots are proofs, not print-quality certification.
Form requirements
- Enter 17 digits (check computed) or 18 digits.
- Digits only; Mod-10 check digit is computed or verified locally.
- The symbol is decoded again locally before preview and downloads unlock.
Sources
Related formats
Keep exploring.
How it works
Three steps, all on your device.
The same engine that reads barcodes writes them — every symbol is decoded again before you see it.
Type the payload
Every symbol is validated and decoded again on your device before it is shown.
Download and print
Take a resolution-independent SVG for print or a PNG for sharing. Nothing is uploaded.
Questions
SSCC-18 Generator & Specs, answered.
If you manage servers by hand, see the engineering services behind this tools series.
What can I type for SSCC-18?
Digits only; Mod-10 check digit is computed or verified locally. Example: 123456789012345675.
How does SSCC-18 handle check digits and printing?
Mod-10 SSCC check digit computed or verified. 10X quiet zone. Export SVG for print and PNG for sharing; both render on your device.
Is my data uploaded anywhere?
No. Encoding and verification run entirely in your browser — the page makes no network requests with your data, stores nothing, and wipes the field after ten idle minutes.
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