Is the Barcode Generator free?

Yes. Every VersaTools tool is completely free — no account, no watermark, and no sign-up required.

Is my data sent to a server?

No. Barcodes are rendered entirely in your browser, so the values you encode never leave your device and are never stored.

Which barcode formats are supported?

Code 128, Code 39, EAN-13, EAN-8, UPC-A, ITF-14, MSI, Pharmacode, and Codabar. Each format has its own rules for the characters and length it accepts, shown as a hint below the data field.

Why does it say my value is invalid?

Strict retail formats like EAN and UPC require an exact number of digits and a valid check digit. If your input doesn't match, the tool tells you what's expected rather than drawing a barcode that scanners would reject.

Should I download PNG or SVG?

Use PNG for quick placement in documents and screens. Choose SVG when you need to scale the barcode for large-format printing, because vector output stays perfectly sharp at any size — which matters for reliable scanning.

Barcode Generator

Commerce & Business

Generate 1D barcodes (Code128, EAN, UPC and more).

Barcode

Barcode data

Format

Data

Any text or digits.

Appearance

Show text below bars

Bar width2px

Height100px

Barcodes are rendered in your browser and never uploaded. EAN and UPC require the exact digit count shown above.

Tool Overview & Guide

What is Barcode Generator?

Barcode Generator creates standard 1D barcodes from your own data in seconds. Pick a symbology — Code 128, Code 39, EAN-13, EAN-8, UPC-A, ITF-14, MSI, Pharmacode, or Codabar — type your value, and adjust the bar width, height, and label. Invalid input for strict formats like EAN and UPC is caught and explained rather than producing a broken code. Download the result as a PNG for printing or an SVG for perfectly sharp scaling, all without anything leaving your browser.

Technical Specifications & Supported Formats

Processing Engine:Client-side Native JavaScript & WebAssembly

Privacy & Security:100% In-Browser (Zero File Upload)

Supported Formats:All Standard Formats & Code Text

Max File Limit:100 MB

How to use Barcode Generator

3 simple steps to complete your task directly in your browser:

Choose a format
Select the barcode symbology from the Format menu. Each one has a sample value loaded automatically so you can see a valid code straight away.
Enter your data
Type the value to encode into the Data field. The hint under the box tells you what each format accepts — for example EAN-13 needs 12 or 13 digits and UPC-A needs 11 or 12.
Fix any validation errors
If the data doesn't fit the chosen format, a clear message explains what's expected instead of rendering an unscannable barcode. Adjust the value until the preview appears.

Common uses

Print product barcodes for retail inventory and shelf labels
Encode SKUs or asset tags for warehouse and stock management
Generate EAN-13 or UPC-A codes for packaging
Create Code 128 labels for shipping and logistics
Add scannable serial numbers to equipment or documents
Produce Pharmacode or Codabar symbols for specialised workflows

Why choose VersaTools

100% private

Your files are processed inside your browser and are never uploaded to a server.

Free, no account

No sign-up, no watermark, no paywalled “premium” tier. Just open a tool and use it.

Instant

No upload, no queue, no server round-trip — work starts the moment you drop a file.

Runs in your browser

Built on open web standards. Works on any modern desktop browser, nothing to install.

No upload size caps

Nothing leaves your device, so there’s no server file-size limit — only your machine’s memory.

Yours to keep

Results download straight to your device in clean, standard file formats.