Barcode: Code 128

Canvas-drawn bars + text, print-safe.

Open interactive tool →

Try it now

Open fullscreen →

How to use

Enter Data and Height into Barcode: Code 128 and press Run. GenForge calculates in your browser with a pure JavaScript engine (Web Worker for heavy inputs). The selected inputs are not sent to a Tolari processing endpoint; output behavior depends on the operation.

Steps

  1. Use the embedded Barcode: Code 128 on this page (or open the full tool).
  2. Enter Data and Height.
  3. Press Run (Ctrl+Enter).
  4. Copy or download the result, or share a link to this tool.

FAQ

Is Barcode: Code 128 really free?

Yes. No account or credits are required, and no paywall blocks the task. Browser, device, and stated file-size limits still apply. Ads may appear only when configured and enabled after the required consent signal.

Is anything I type into Barcode: Code 128 sent to a server?

The calculation runs in this page and is not sent to a Tolari processing server. Depending on your settings, recent runs may be saved in local browser storage; use Private Mode or clear local history on this device if needed.

What should I enter in "Data"?

Put your data here — for example: 123456789012. Leave the defaults first to see how it works, then adjust. Every field is validated with a plain-language message if something is off.

How should I compare Barcode: Code 128 with other options?

Compare supported inputs, output quality, file-size limits, browser compatibility, and privacy terms using the same sample. Provider features and terms can change; check their current documentation.

How accurate is Barcode: Code 128?

For print, keep codes at least 2 cm wide with a clear quiet zone; every matrix here includes error correction.

Advertisement
Content continues below

Compare before choosing

Compare supported inputs, output quality, limits, browser compatibility, and privacy terms before choosing a tool for QR codes, barcodes, passwords and IDs. Feature checklist.

Related tools

EAN-13 Check Digit

Validate/compute check digit with steps.

Open →

QR: URL / Text

Payload builder + matrix via cached lib, PNG/SVG download.

Open →

QR: Wi-Fi

WIFI:T:WPA;S:…;P:…;; with escaping + safety note.

Open →

QR: vCard Contact

VCARD payload with field escaping.

Open →

QR: Email / SMS / Phone

mailto:/sms:/tel: payloads with encoding.

Open →

QR: Calendar Event

VEVENT payload with UTC formatting.

Open →