How to use Barcode Gen
- Paste the value you need to process into the input box.
- Adjust the Value, Format options to match what you need.
- Barcode Gen updates the output automatically as you type.
- Finish by choosing Download PNG to take the output with you.
About this tool
Everything Barcode Gen does happens on your own device. Barcode Gen encodes your text into a QR matrix locally with an open-source library and renders it to a canvas.
Higher error-correction levels (Q or H) survive damage or partial cover at the cost of denser modules; level M suits most links. No data is sent anywhere, so it stays fast and private by default.
Frequently asked questions
How do I use Barcode Gen?
Barcode Gen lets you process your input right in the browser using the Value, Format controls, with the result shown instantly and nothing uploaded.
Do I need an account for Barcode Gen?
No — Barcode Gen needs no account, sign-up or installation.
Is my input private in Barcode Gen?
Yes — your input never leaves your device; Barcode Gen does all the work in your browser.
Which error-correction level should I pick in Barcode Gen?
Level M suits most links. Choose Q or H in Barcode Gen if the code may be printed small, curved, or partly covered.
Does Barcode Gen work offline?
Once the page has loaded, Barcode Gen keeps working with no network connection.