About Barcode Generator
Generate barcodes (such as Code 128 and EAN) from your text or numbers, then download the image. Useful for labels, inventory, and product tags. Runs entirely in your browser.
How to Use
- Enter the value to encode.
- Choose the barcode format.
- The barcode renders instantly.
- Download the image to print or use.
Why Use This Tool?
- Accurate — built on precise, well-tested mathematical formulas.
- Instant — all calculations happen client-side for zero latency.
- Private — no data is sent to any server; your information stays on your device.
- Free — no sign-up, no limits, no hidden costs.
Frequently Asked Questions
What barcode formats are supported?
Common linear formats such as Code 128, Code 39, and EAN/UPC. Pick the one your scanner or system expects — Code 128 is a good general-purpose default.
What is the difference between a barcode and a QR code?
A barcode is one-dimensional (lines) and stores a short value like a product ID; a QR code is two-dimensional and holds much more data, like URLs. Use the QR Code Generator for those.
Do these barcodes expire?
No. The barcode encodes your value directly into the image, so it works permanently and offline.