Free QR Code Generator — Create QR Codes Online for URLs, WiFi, Text

Generate custom QR codes online for free. Create codes for URLs, WiFi, text, email, and phone. Download high quality PNG or SVG. No signup, instant generation.

How to use Free QR Code Generator — Create QR Codes Online for URLs, WiFi, Text

  1. 1

    Enter the text or URL for the QR code.

  2. 2

    Customize colors (background and foreground) to match your brand.

  3. 3

    Adjust the margin and error correction level.

  4. 4

    Download the QR code as a PNG or SVG file.

Frequently Asked Questions

Do these QR codes expire?

No — these are static QR codes that permanently encode your data into the image. They work forever, as long as the link or content you encoded remains valid.

Can I put a logo in the center of the QR code?

Yes — use Error Correction Level H (30% tolerance) when adding a logo. This allows the logo to cover up to 30% of the code area while remaining scannable. Always test before printing.

What is the best error correction level to choose?

Level M (15%) for standard use. Level H (30%) if you plan to overlay a logo. Higher levels make the code denser — fine for digital, but harder to scan from a small printed size.

What is the difference between PNG and SVG output?

PNG is a fixed-resolution pixel image — best for web sharing and digital displays. SVG is infinitely scalable without quality loss — best for print (banners, posters, business cards). Always download SVG if you plan to print at large sizes.

Why does my QR code fail to scan?

Common causes: low contrast between foreground and background colors, code too small (under 2cm/0.8in when printed), the encoded URL is too long making the code overly dense, or a damaged/low-quality print.

Can I encode Wi-Fi credentials in a QR code?

Yes — switch to Wi-Fi mode, enter your network name (SSID) and password. When someone scans it, their phone automatically connects — no typing required. WPA2 and WPA3 networks are both supported.

Detailed Guide

A QR Code in 5 Seconds, No Account Required

QR codes appear on restaurant menus, product packaging, event wristbands, business cards, and government documents worldwide — because they're the most reliable way to move someone from a physical surface to a digital destination without typing.

This generator produces static QR codes that encode your content permanently into the image. Enter your URL, Wi-Fi credentials, or text, customize the look, and download as a print-ready SVG or web-ready PNG. The code you create today will still scan in 10 years — as long as your destination URL is still live.


How QR Codes Actually Work

A QR (Quick Response) code is a 2D matrix barcode that encodes data as a grid of black and white square modules. Unlike barcodes, which store data horizontally, QR codes store data both horizontally and vertically — up to 7,089 numeric or 4,296 alphanumeric characters.

The encoding process:

  1. Your input text is converted to a binary bit-stream using one of QR's encoding modes: Numeric, Alphanumeric, Byte, or Kanji
  2. Reed-Solomon error correction codes are generated and interleaved with the data — this is why QR codes scan even when partially damaged or covered by a logo
  3. The binary data fills the QR matrix, starting from the three Finder Patterns (the large squares in three corners that camera apps use for orientation detection)
  4. A mask pattern is applied to distribute dark and light modules evenly and avoid long uniform runs that could confuse scanners

Error Correction Levels:

LevelRecovery CapacityBest For
L (Low)~7%Clean digital displays
M (Medium)~15%General printing
Q (Quartile)~25%Outdoor signage, dirty surfaces
H (High)~30%Logo overlays, damaged labels

Higher error correction = more redundant data = denser (more squares) QR pattern. Level H allows covering up to 30% of the code with a logo and still having it scan reliably.

SVG vs. PNG:

  • SVG: Vector format, scales to any size without pixelation. Print on banners, posters, billboards at any DPI. Always choose SVG for print.
  • PNG: Raster pixel format. Perfect for web, email, and digital sharing where exact dimensions matter.

Real-World Use Cases

Restaurants and cafés: Encode your online menu URL. Guests scan the table QR code and see the latest menu — no reprinting laminated cards when prices change.

Event organizers: Link QR codes on tickets...

Looking for a more detailed deep-dive and advanced tips?

Read Full Article on our Blog