Check the spec
Capacity, error correction and shape controls for this symbology are listed above.
Free tools · Barcodes
Generate Code 16K symbols that scan.
Stacked Code 128-derived symbol for compact industrial labels. Configure Code 16K below — Generate-only through pinned BWIPP; exact capacity and row selection are engine-enforced. Every symbol is decoded again on your device before export.
2D code generator
Type text, get a symbol.
Runs locally in your browser. Nothing is uploaded; the field clears after ten idle minutes.
Advanced (error correction, shape, GS1)
This symbology has no tunable options — the engine picks the densest valid symbol.
Style (colors, frame, caption, export size)
Code 16K stays black on white until this output path has an independent color/raster qualification.
Outer frame
Frame and caption ship in the SVG download; PNG exports the bare symbol.
Specification
| Character set | Generate-only through pinned BWIPP; exact capacity and row selection are engine-enforced. |
|---|---|
| Lengths | ASCII text |
| Check digits | Error correction fixed by the symbology or QR-studio owned. |
| Quiet zone | Specification quiet zone enforced in preview and export (2 modules minimum for matrix symbols). |
| Geometry | Stacked Symbologies; engine selects the smallest fitting symbol unless pinned. |
| Capacity | Up to ~400 characters here; the engine enforces exact capacity. |
Usage
Code 16K stacks rows of data for documents and transport labels: print it wide on paperwork where stacked-row imagers operate.
- Code 16K on shipping documents carrying addresses and IDs
- Code 16K on industrial labels with pinned rows and columns
- Code 16K proofs exported as SVG for laser printers
Shape
Pros
- Code 16K scans on modern phone and industrial imagers.
- Every symbol is read back locally before preview or download.
- SVG export stays sharp for print; PNG covers quick sharing.
- Only the controls this symbology accepts are shown.
Cons
- Code 16K needs calm quiet zones — nearby text breaks detection.
- Glare, blur and low contrast are the usual reasons a symbol will not read.
- Screenshots prove scannability, not print quality grading.
- Custom colors stay locked until contrast and tinted re-decode pass.
Form requirements
- Enter ASCII text.
- Generate-only through pinned BWIPP; exact capacity and row selection are engine-enforced.
- Downloads stay locked until the local read-back reproduces the payload.
Sources
- AIM symbology specifications (AIM)
Related formats
Keep exploring.
How it works
Three steps, all on your device.
The same engine that reads 2D codes writes them — every symbol is decoded again before you see it.
Tune and style
Only the controls this symbology accepts are shown; every symbol is read back to prove it scans.
Download and print
Take a resolution-independent SVG or a PNG at your chosen module size. Nothing is uploaded.
Questions
Code 16K Generator & Specs, answered.
If you manage servers by hand, see the engineering services behind this tools series.
What can I encode in Code 16K?
Generate-only through pinned BWIPP; exact capacity and row selection are engine-enforced. Example input is prefilled when the page loads.
How does Code 16K stay scannable?
Error correction fixed by the symbology or QR-studio owned. Keep the quiet zone calm, use black-on-white for print, and export SVG for anything that gets resized.
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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