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Free Barcode Generator — Create Code128 & EAN-13 Barcodes Online

Generate professional barcodes for retail products, logistics labels, and asset tracking. Customize colors, dimensions, and text display — download as SVG or PNG instantly.

No uploads. Everything runs locally in your browser.

Need a free barcode generator for your products, labels, or inventory? Our online barcode maker creates professional Code128 and EAN-13 barcodes with customizable colors, dimensions, and text display. Download as SVG for print-quality output or PNG for digital use — all client-side, no sign-up required.

Status

Sample loaded. Edit value or adjust appearance!

Value
Text or numbers
Preview & Download

SVG for print & design. PNG for web & digital labels.

What is a Barcode Generator?

A barcode generator creates machine-readable patterns of parallel lines that encode numbers or text. Barcodes are scanned by laser or camera-based readers to instantly retrieve product IDs, tracking numbers, or inventory codes. This free barcode generator supports Code128 for alphanumeric data and EAN-13 for retail products — all generated in your browser using the jsbarcode library.

Code128 vs EAN-13

  • Code128 — supports letters, numbers, and symbols. Used for shipping labels, inventory, and logistics worldwide.
  • EAN-13 — numeric-only (12-13 digits) with auto-checksum. The global standard for retail product barcodes on every item you buy.
  • Auto-validation — EAN-13 checks your digit count and validates the checksum. Code128 accepts any text or number input without validation.

How to use Barcode Generator

  1. Select Code128 (text/numbers) or EAN-13 (retail products) barcode format.
  2. Enter your value — EAN-13 auto-calculates checksum for 12-digit inputs.
  3. Customize appearance, then download as SVG for print or PNG for digital use.

Key features of Barcode Generator

  • Two barcode formats: Code128 for text and numbers, EAN-13 for retail products with auto-checksum
  • Full appearance control: foreground/background colors, bar width, height, and margin
  • Toggle human-readable text display below the barcode for labels and packaging
  • Dual download: SVG for print-quality vector output, PNG for web and digital use
  • Real-time preview updates as you type or adjust any setting
  • Input validation with clear error messages for EAN-13 digit requirements
  • All generation happens in your browser — zero uploads, instant results

Barcode Generator — key benefits

  • Completely free with no signup or registration required.
  • Runs entirely in your browser — your data is never uploaded.
  • Works on desktop, tablet, and mobile devices.
  • Instant results with no waiting or processing queues.
  • Part of the ToolCircuit suite of free online utility tools tools.

When to Use This Barcode Generator

🏪 Retail Product Labels

Generate EAN-13 barcodes for product packaging, price tags, and inventory systems. The auto-checksum ensures compatibility with all retail scanners.

📦 Shipping & Logistics

Create Code128 barcodes for shipping labels, tracking numbers, and warehouse management. Code128 supports alphanumeric data for flexible labeling.

🏷️ Asset Tracking

Tag equipment, tools, and IT assets with custom barcodes. Scan to pull up asset details, check-out history, and maintenance records.

📚 Library & Document Management

Generate free barcodes for book ISBNs, document IDs, and filing systems. Pair with a scanner for fast check-in/check-out workflows.

Barcode Design Tips for Reliable Scanning

  • Maintain high contrast — dark bars on a white or light background scan most reliably. Avoid pastel-on-pastel color combinations that confuse laser and CCD scanners.
  • Use adequate margin — a quiet zone of at least 10px around the barcode gives scanners room to detect the start and end of the code pattern.
  • Don't compress too much — bar width below 1.5px may not scan on older or lower-resolution devices. Keep width at 2px+ for reliable scanning across all hardware.
  • Download SVG for print — vector format scales to any label size without pixelation. Use PNG only for on-screen display or quick digital sharing.

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FAQ

Is this barcode generator free?

Yes — completely free, no sign-up required. All barcode generation runs in your browser for privacy.

What's the difference between Code128 and EAN-13?

Code128 supports letters, numbers, and symbols — ideal for logistics, shipping labels, and inventory. EAN-13 is numeric-only with an auto-calculated checksum — the standard format for retail products worldwide.

Does EAN-13 auto-calculate the check digit?

Yes — if you enter 12 digits, the 13th check digit is computed automatically. If you enter 13 digits, the checksum is validated and errors are flagged.

Can I change barcode colors and size?

Yes — adjust foreground/background colors, bar width (1-4px), height (40-140px), and margin (0-20px). Keep high contrast for reliable scanning.

Does it upload my data?

No. All barcode generation uses the jsbarcode library and runs entirely in your browser. Nothing is sent to any server.

What format should I download?

SVG for print materials, product packaging, and design work — it scales infinitely. PNG for websites, digital labels, and quick sharing.

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