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OFFLINE CODE GENERATOR

Barcode & QR Code Suite

Generate print-ready codes in your browser. Your data stays on this device.

Runs offline

LIVE PREVIEW

QR code

Local
Enter valid details to generate

Error Handling & Recovery

Rendering and export errors are caught and explained with next steps. Try a shorter payload, a supported format, a smaller logo, or retry after clearing the current code.

Create a QR code or barcode in your browser

Create a downloadable QR code for text, Wi-Fi, UPI, or contact details, or generate a Code 128, EAN-13, UPC-A, or Code 39 barcode.

How it works

  1. Choose a code type

    Select QR code or barcode, then choose the matching content type or barcode standard.

  2. Enter and style the data

    Add the value and adjust available colors, dimensions, or QR error-correction settings; fix any validation message.

  3. Download the image

    Preview the generated code and export it as a PNG when it scans or prints as intended.

Specifications and notes

QR contentText or URL, Wi-Fi, UPI, and vCard contact details
Barcode formatsCode 128, EAN-13, UPC-A, and Code 39
ExportPNG image; QR and barcode exports are rendered at 2000 px wide

Privacy and processing

Code generation and logo-image handling run in the browser. A QR code can visibly encode personal or payment details, so review its content before sharing the exported image.

Frequently asked questions

Can I create a QR code for Wi-Fi or UPI?

Yes. Choose Wi-Fi or UPI, enter the requested details, then test the downloaded QR code with a scanner before publishing it.

Which barcode formats are available?

The generator supports Code 128, EAN-13, UPC-A, and Code 39, with input validation for the selected format.

Why should I test a QR code before printing?

Contrast, size, a center logo, and the printed surface can affect scanning. Test the exported image on multiple devices at its intended size.

Creating and checking barcode or QR codes

Use the barcode and QR generator to turn text, links, or supported identifiers into a scannable graphic. Choose a format that matches the value you need to encode; a QR code and a linear barcode are not interchangeable in every scanning system.

Recommended workflow

Enter the value carefully, select the code family, and review its options before generating the preview. Short, correct source data is easier to scan and less likely to be truncated by a target system. If a code is intended for a form, inventory process, or payment flow, confirm the required symbology and payload with that service first.

Review before using or sharing

Test the generated image with more than one scanner when practical. Check that the decoded text exactly matches the original value, that the image has adequate contrast and a clear margin, and that resizing or printing has not blurred its edges. A successful preview is not proof that every device or destination will accept the code.

Privacy and responsible use

Code generation is designed to happen in your browser. The encoded value may still be visible on your screen, in browser extensions, or in any image you choose to save or share. Do not encode passwords, access tokens, or other secrets into a code intended for public display.

A careful final check

Before you begin, identify the exact outcome you need and the rules of the service that will receive it. A file-size limit, image dimension, page order, or calculation date can be more important than a default setting. Keep source material unchanged, use only the minimum personal information required, and do not enter credentials or payment secrets into a general utility. If the browser reports an unsupported file or an incomplete result, stop and verify the source rather than assuming the export is correct.

After processing, compare the output with the source and test it in the context where it will be used. Check the receiving organization's current instructions, confirm that the format and file size are accepted, and retain a secure copy of important originals. For official, financial, legal, or identity documents, ask the responsible authority or a qualified professional when a decision depends on interpretation. These practical checks help catch common errors, but they do not replace an official review or guarantee that a result will be accepted.

Keep a clear distinction between a file saved only on your device and a file deliberately sent to an outside service. Some browser tools load fonts or models from third parties, and translation sends selected text to its provider after you give consent. Review prompts before confirming, close the page when finished on a shared computer, and delete temporary downloads or local browser data when appropriate. If a tool uses a server-backed feature, its processing route should be checked in the Privacy Policy before submitting sensitive material.

Frequently asked questions

Why does my scanner reject the code?

Check the selected code type, encoded value, quiet zone, contrast, and print size. Some scanners accept only specific formats or payload structures.

Can I use a QR code for payments?

Only if the payment provider accepts the generated payload and you verify the recipient and amount independently before use.