Free Code 39 Barcode Generator
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X Width:
pixel(s)
Y Height:
pixel(s)
Image format guide:
PNG – Lossless compression. Best for barcodes, QR codes, logos, and images with sharp edges or transparency. Larger file size but maximum clarity.
JPEG (JPG) – Lossy compression. Good for photos and complex images with gradients. Smaller files, but not ideal for barcodes or text due to compression artifacts.
WebP – Modern format with superior compression. Supports both lossy and lossless modes, often producing smaller files than PNG or JPEG at similar quality. Good general-purpose choice.
SVG – Vector format (not pixel-based). Infinitely scalable with no quality loss. Ideal for QR codes, logos, and graphics that need to resize perfectly. Very small file size for simple graphics.
PNG – Lossless compression. Best for barcodes, QR codes, logos, and images with sharp edges or transparency. Larger file size but maximum clarity.
JPEG (JPG) – Lossy compression. Good for photos and complex images with gradients. Smaller files, but not ideal for barcodes or text due to compression artifacts.
WebP – Modern format with superior compression. Supports both lossy and lossless modes, often producing smaller files than PNG or JPEG at similar quality. Good general-purpose choice.
SVG – Vector format (not pixel-based). Infinitely scalable with no quality loss. Ideal for QR codes, logos, and graphics that need to resize perfectly. Very small file size for simple graphics.
This site is supported by advertising.
Ads help keep our service free.
Ads help keep our service free.
5/7/2026 1
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Code39 only accepts 43 valid input characters:
26 uppercase alphas (A - Z), digits (0-9), hyphen, period, space, dollar sign, slash, plus and percent.
