Barcode.Ruby gem — All-in-One
WASM barcode library — 18 barcode types
Ruby + Sinatra + WASM
Barcode Type
Width
Height
Data
Show Text
Even Spacing
PNG (Base64)
SVG
Error Correction
L (Low ~7%)
M (Medium ~15%)
Q (Quartile ~25%)
H (High ~30%)
Version (0=Auto)
Error Level (-1=Auto)
Columns (0=Auto)
Symbol Type
Omnidirectional
Stacked
Stacked Omnidirectional
Symbol Type
Unstacked
Stacked
Columns
Generate
Preview
PNG
Select a barcode type and click Generate