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Barcode Scanner

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Scan and decode common barcode formats including UPC, EAN, Code 128, and Code 39.

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Barcode Scanner

Scan and decode common barcode formats from images

Supports JPG, PNG, WebP. For best results, use a clear image with good contrast.

Supported Formats

  • EAN-13: 13-digit product barcodes
  • EAN-8: 8-digit product barcodes
  • UPC-A: 12-digit US product barcodes
  • Code 128: High-density alphanumeric
  • Code 39: Alphanumeric for industrial use
  • Codabar: Libraries, blood banks
More about the Barcode Scanner

A barcode from a product on a store shelf and a barcode on a shipping label or an internal inventory tag usually aren't even using the same encoding, retail products use globally standardized UPC or EAN formats, while logistics and inventory systems often use more flexible alphanumeric formats like Code 128 or Code 39 built for internal tracking rather than universal product identification. This tool scans and decodes across all of those formats, rather than assuming every barcode encountered is a retail product code. Useful for scanning a retail product's UPC or EAN to look up what it actually is, decoding a Code 128 or Code 39 label from a shipping box or an inventory tag, or reading an unfamiliar barcode format without knowing in advance which encoding it actually uses.

Key features

  • Clean interface
  • Fast processing
  • No signup required
  • Works offline

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Quick answers for Barcode Scanner

What does the Barcode Scanner do?
Scan and decode common barcode formats including UPC, EAN, Code 128, and Code 39. The Barcode Scanner is one of 900+ free developer tools on Toolblip - all open to use without a signup.
How do I use the Barcode Scanner?
Open the Barcode Scanner on this page, paste or upload your input, and the result updates as you type. Use the copy button to grab the output, or adjust options to tune the result. Nothing you enter leaves your browser.
Is the Barcode Scanner free to use?
Yes. The Barcode Scanner is a free online tool on Toolblip - no signup, no account, no hidden usage limits. It runs in your browser and works on desktop and mobile.
Is the Barcode Scanner safe and private?
Yes. The Barcode Scanner processes your data entirely client-side, so nothing you paste is uploaded or stored on any server. It's safe to use with internal snippets, private keys for debugging, or any other sensitive content you'd rather not send to a remote service.
What kind of output does the Barcode Scanner produce?
The Barcode Scanner produces clean, formatted output that you can copy or download with a single click. The output is tailored to the tool's purpose — formatted code, converted data, transformed text, or processed media — and is ready for immediate use in your project or workflow.
Does the Barcode Scanner work on mobile devices?
Yes. The Barcode Scanner is designed to work on any device with a modern browser, including phones and tablets. The interface adapts to smaller screens, and the core functionality — paste input, transform, copy output — works the same way regardless of your device.
Are my images uploaded anywhere when I use the Barcode Scanner?
No. The Barcode Scanner processes images fully client-side using the Canvas API. Your files never leave your browser, so you can safely work with personal photos, design mockups, or confidential assets.
What image formats does the Barcode Scanner support?
The Barcode Scanner works with common web image formats including PNG, JPEG, WebP, GIF, and SVG. The specific operations available depend on the format — lossless formats like PNG preserve quality through transformations, while lossy formats like JPEG may show compression artefacts after re-encoding.
Can I use the Barcode Scanner offline?
Once the page has loaded, the Barcode Scanner continues to work without an internet connection. Bookmark this page and return to it anytime - all logic runs locally.