How to use: QR Code Generator

Description

Create QR codes for text, URLs, Wi-Fi, vCard, email, phone, SMS, geo, calendar, WhatsApp, Telegram, Bitcoin, Ethereum, UPI and JSON, with error correction, quiet zone, colours and PNG/SVG export.

• qr
• Because everything is computed client-side, QR Code Generator is safe to use with sensitive data such as API keys, tokens or private logs.

How to use

Using QR Code Generator takes three steps:

1. Paste your data into the input box (or load the example).
2. Configure the options to match your target format or scenario.
3. Copy, download or inspect the output — it updates live as you type.

Run

Examples

The simplest case: 11 ASCII characters encode to a version-1 symbol (21×21 modules) at error correction M.

Input

Hello World

Output

<div class="qr-out">
  <div class="qr-preview"><img src="data:image/png;base64,iVBORw0KGgo=" alt="QR code" width="256" height="256" style="max-width:100%;height:auto;image-rendering:pixelated"></div>
  <div class="qr-meta">
    <table class="tb-table"><tbody>
      <tr><th>Detected type</th><td>Plain text</td></tr>
      <tr><th>Version</th><td>1 (21×21 modules)</td></tr>
      <tr><th>Error correction</th><td>M</td></tr>
      <tr><th>Quiet zone</th><td>4 module(s)</td></tr>
      <tr><th>Payload size</th><td>11 bytes (UTF-8)</td></tr>
      <tr><th>Contrast</th><td>21.00:1</td></tr>
      <tr><th>Validation</th><td class="ok">VALID</td></tr>
      <tr><th>Render → decode self-test</th><td class="bad">FAILED (decoded ≠ payload)</td></tr>
    </tbody></table>
    <table class="tb-table"><tbody><tr><th>chars</th><td>11</td></tr><tr><th>lines</th><td>1</td></tr></tbody></table>
  </div>
</div>
<div class="qr-payload"><strong>Payload</strong><pre class="ex-io">Hello World</pre></div>


<div class="tb-btns qr-actions">
  <button class="btn btn-primary" data-qr-dl="png">Download PNG</button>
  <button class="btn" data-qr-dl="svg">Download SVG</button>
  
  <button class="btn" data-qr-copy="payload">Copy payload</button>
  <button class="btn" data-qr-copy="svg">Copy SVG</button>
  <button class="btn" data-qr-copy="image">Copy image</button>
  <button class="btn" data-qr-print>Print</button>
</div>
<p class="ex-note">Generated and verified entirely in your browser. No data is uploaded.</p>

This output was produced by actually running the tool, not written by hand.

Use cases

Common situations where QR Code Generator helps:

• Create QR codes for text, URLs, Wi-Fi, vCard, email, phone, SMS, geo, calendar, WhatsApp, Telegram, Bitcoin, Ethereum, UPI and JSON, with error correction, quiet zone, colours and PNG/SVG export.

Parameters

Input: not required — the tool generates its own data · Output: HTML · live update while typing: ✗

FAQ

Good to know

• The result does not update while you type — press Run after changing the input.
• The output is rendered as formatted content; use Copy to take the plain value.
• Everything runs client-side, so extremely large inputs are limited by your browser tab’s memory rather than by a server upload limit.

Related tools

QR Code Generator → · qr →