QR Code Generator

Content

19 / 213 bytes(V2)

Quick Presets

Size

300px

100px500px

Error Correction

Colors

Foreground

Background

Preview

Version 2 (25x25)

How It Works

Zero Dependencies

Full QR encoder built from scratch with GF(256) arithmetic and Reed-Solomon error correction.

Client-Side Only

All encoding happens in your browser. No data is sent to any server.

Scannable Output

Generates real, standards-compliant QR codes with proper finder patterns, masking, and EC.

Capacity Reference

Version	L	M	Q	H
V1 (21x21)	17	14	11	7
V2 (25x25)	32	26	20	14
V3 (29x29)	53	42	32	24
V4 (33x33)	78	62	46	34
V5 (37x37)	106	84	60	44
V6 (41x41)	134	106	74	58
V7 (45x45)	154	122	86	64
V8 (49x49)	192	152	108	84
V9 (53x53)	230	180	130	98
V10 (57x57)	271	213	151	119

Capacity in bytes (byte mode encoding)

What This Tool Does

QR Code Generator is built for deterministic developer and agent workflows.

Generate QR codes for URLs, text, WiFi, and app flows — export SVG/PNG or automate generation via free API.

Use How to Use for execution steps and FAQ for constraints, policies, and edge cases.

Last updated: February 24, 2026

This tool is provided as-is for convenience. Output should be verified before use in any production or critical context.

Agent Invocation

Best Path For Builders

Dedicated API endpoint

Deterministic outputs, machine-safe contracts, and production-ready examples.

Dedicated API

https://aidevhub.io/api/qr-code/

OpenAPI: https://aidevhub.io/api/openapi.yaml

GET /api/qr-code/ Generate a QR code

POST /api/qr-code/ Generate a QR code

Unified Runtime API

https://aidevhub.io/api/tools/run/?toolId=qr-code-generator&a=...

GET and POST are supported at /api/tools/run/ with identical validation and limits.

Limit: req / s, input max 256 KB.

REST API

Base URL

https://aidevhub.io/api/qr-code/

50 requests/day per IP. No authentication required. CORS enabled. OpenAPI spec

Endpoints

GET /api/qr-code/ Generate a QR code

POST /api/qr-code/ Generate a QR code

Example

curl "https://aidevhub.io/api/qr-code/?data=https://aidevhub.io&format=svg"

const res = await fetch("https://aidevhub.io/api/qr-code//api/qr-code/", {
  method: "GET",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({
  "data": "https://aidevhub.io",
  "format": "svg"
}),
});
const data = await res.json();
console.log(data);

import requests

res = requests.post(
    "https://aidevhub.io/api/qr-code//api/qr-code/",
    json={"data":"https://aidevhub.io","format":"svg"},
)
print(res.json())

Example Response

{
  "format": "svg",
  "data": "<svg>...</svg>",
  "size": 300
}

How to Use QR Code Generator

1

Paste text, URL, or WiFi credentials

Enter any content you want to encode: plain text, URLs, WiFi SSID+password (auto-formats as WiFi QR), contact info, or SMS text.
2

Adjust QR code size and error correction

Set QR code size (small to large) and error correction level (L/M/Q/H). Higher error correction allows more damage but produces larger codes.
3

Customize colors (optional)

Change foreground (dark) and background (light) colors to match your branding. Ensure sufficient contrast for scanners to read reliably.
4

Download or copy QR code

Download as PNG (default) or SVG for vector scalability. Copy the SVG inline if embedding in HTML, or save the PNG for print/email.
5

Test with your phone camera

Use your phone's camera or QR scanner app to test the generated code. Verify it links to the correct URL or decodes to the expected text.

Frequently Asked Questions

What is QR Code Generator?

QR Code Generator creates QR codes from text, URLs, WiFi credentials, and more. You can download the result as SVG or PNG, making it useful for both print and digital applications.

How do I use QR Code Generator?

Enter your content — a URL, text, WiFi network details, or other data — and a QR code is generated instantly. Customize the size and error correction level, then download as SVG or PNG.

Is QR Code Generator free?

Yes. This tool is free to use with immediate access—no account required.

Does QR Code Generator store or send my data?

No. All processing happens entirely in your browser. Your data never leaves your device — nothing is sent to any server.

What is the difference between SVG and PNG downloads?

SVG is a vector format that scales to any size without losing quality, making it ideal for print materials. PNG is a raster format best for web use and sharing. Both are generated locally in your browser.