Generate a Code 39 barcode with ForQRCode. Enter the encoded value, adjust colors and dimensions, and download a production-ready image.
Technical specifications
- Symbology
- Code 39
- Character set
- Letters and numbers
- Data length
- Variable length
- Check digit
- Optional
How to create a Code 39 barcode
Generate a scannable Code 39 symbol in three steps.
- 1
Select Code 39
This page is preset to Code 39. Switch symbologies with the links above if needed.
- 2
Enter the data
Type the digits or characters your Code 39 symbol should encode. Invalid lengths show an error before download.
- 3
Download the image
Adjust bar width and height, then export PNG or SVG for labels and cartons.
About Code 39
Code 39 is used for industrial labeling and government ID badges.
Related formats in this family include Code 39, Code 39 Extended, Code 93, and checksum variants. Pick the symbology your scanner or retailer expects.
ForQRCode renders valid bar patterns for proofing and internal labels. Retail distribution may still require official GS1 identifiers where applicable.
Tips for Code 39 labels
- 1
Leave quiet zones (margin) on both sides of linear barcodes.
- 2
Print at sufficient height so narrow bars do not blur on inkjet printers.
- 3
Verify check digits before mass printing EAN and ITF symbols.
- 4
Test scan with the same engine your warehouse or POS uses.
Questions about Code 39
What is Code 39?
Code 39 is a barcode symbology for industrial labeling and government ID badges.
Which scanners read Code 39?
Most linear imagers and laser scanners support Code 39 when configured for this symbology.
Can I change colors?
Yes. Keep strong contrast between bars and background for reliable scans.
GS1 compliance?
Code 39 is common in automotive and defense; GS1 retail rules do not apply.
Which export format for print?
SVG and PDF keep edges sharp on cartons and labels.