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QR Code Generator — Create QR Codes Online for Free

QR code generator turns any text or URL into a scannable QR code directly in your browser — no upload, no signup, no watermark. Customize the size, foreground and background colors, error correction level, and margin, then preview the result live as you type. Higher error correction levels make the code more resilient to smudges and damage at the cost of a denser pattern, while a larger margin improves scan reliability on printed materials. Once you are happy with the result, download it as a PNG for use on business cards, posters, packaging, or web pages.

Features

  • Live preview

    The QR code regenerates instantly as you type or adjust any option — no generate button needed.

  • Custom colors

    Pick any foreground and background color to match your brand, as long as contrast stays scannable.

  • Adjustable error correction

    Choose from L, M, Q, or H correction levels to trade code density for damage resistance.

  • No upload

    Everything runs locally in your browser — your text and URLs are never sent to a server.

How to generate a QR code online

Create a downloadable QR code from any text or URL.

  1. Enter your text or URLType or paste the text, link, or data you want encoded into the input box.
  2. Adjust the optionsSet the size, foreground and background colors, error correction level, and margin to taste.
  3. Preview the resultThe QR code updates automatically in the preview panel as you change any setting.
  4. Download the PNGClick "Download PNG" to save the QR code image to your device.

Examples

Encode a website URL

Input
https://example.com/promo
Output
A 256×256 PNG QR code that opens the URL when scanned.

Use error correction level Q or H if the code will be printed small or on textured material.

Frequently Asked Questions

Is my text or URL uploaded to a server?
No. The QR code is generated entirely in your browser using the qrcode library. Nothing you type is sent to a server or logged.
What does the error correction level do?
It controls how much of the code can be damaged or obscured while still scanning correctly. L tolerates about 7% damage, M about 15%, Q about 25%, and H about 30%. Higher levels produce a denser, more detailed pattern.
Why did generation fail with an error?
QR codes have a maximum data capacity that shrinks as the error correction level increases. If your text is long, try a lower error correction level (L or M) or shorten the input.
Can I use custom colors?
Yes, set any foreground and background color. Keep strong contrast between them — low-contrast combinations may not scan reliably on all devices.
What size should I use for printing?
For print, generate at a large size (e.g. 512px or more) so the PNG stays sharp at the final print dimensions, and keep a margin of at least 4 for a clean quiet zone around the code.
What image format is the download?
The QR code downloads as a PNG file with a transparent-free background using the colors you selected.