Do QR codes generated on 360Tools expire or have scan limits?

No. All QR codes generated on 360Tools are permanent static QR codes. They encode the exact destination payload directly into the 2D matrix, meaning they will work forever with unlimited scans and zero subscription fees.

Can I add a custom company logo or icon to my QR code without breaking scanability?

Yes. Our generator utilizes Reed-Solomon Error Correction algorithms (up to Level H, 30% redundancy). This allows you to embed a centered company logo, brand emblem, or icon while ensuring all smartphone cameras and optical scanners decode the code instantly.

Is my Wi-Fi password or private vCard data transmitted to any external server?

No. The entire QR generation engine executes 100% locally in your browser memory using HTML5 Canvas and client-side JavaScript. Your confidential Wi-Fi network credentials, personal contact info, and crypto wallet addresses never leave your device.

What is the best format for printing QR codes on billboards, flyers, and business cards?

For physical print media, SVG (Scalable Vector Graphics) or Ultra-HD 2048px PNG is recommended. Vector SVGs can be enlarged to any physical dimension without pixelation or scanning degradation.

What is the minimum recommended size for a printed QR code?

For close-range scanning on business cards or restaurant menus, the minimum size is 2 x 2 cm (0.8 x 0.8 inches). For posters or billboards, apply a 10:1 distance-to-size ratio (e.g., a scanner 10 feet away requires at least a 1-foot wide QR code).

Vector & High-Res QR Engine • 100% In-Browser Privacy • SVG & PNG Export

Free Custom QR Code Generator with Logo & Colors

Create permanent, print-ready QR codes for websites, Wi-Fi networks, vCard business contacts, emails, and crypto wallets. Customize colors, add logos, and export vector SVGs with zero limits.

1. Select Data Type

2. Content & Payload Details

Website or Destination Link

3. Custom Styling & Branding Studio Options

Foreground Color (QR Dots)

Background Color

Transparent

Error Correction Redundancy

Level H is automatically activated when embedding icons or center logos.

Export Resolution (Pixels) 1024 px

256px (Web) 1024px (Print HD) 2048px (Ultra HD)

Center Icon / Logo Overlay

Presets:

Live Scan Preview 0 chars

Point your phone camera to test live

Decoded Payload Content:

https://360tools.me

100% In-Browser Private. Zero Tracking & No Expiration.

Comprehensive QR Code Guide

The Engineering Guide to Custom QR Codes & Scannability

Everything creators, businesses, and developers need to know about 2D matrix symbology, error correction redundancy, color contrast ratios, and vector print preparation.

100% Static & Never Expires

Unlike commercial platforms that hold your destination URL hostage behind recurring monthly subscriptions, our static codes encode raw binary payloads directly. They work forever with zero scan quotas.

Reed-Solomon Error Correction

Built-in Level H (30%) mathematical redundancy allows your codes to withstand physical scratches, tears, water damage, or custom center logo overlays without compromising camera decode speed.

Lossless Vector SVG Export

Export true mathematical SVG vector files for Adobe Illustrator, Figma, Canva, and large-scale industrial printing press applications from small coffee cups to 50-foot highway billboards.

How Quick Response (QR) Codes Work: Matrix Anatomy & Encoding

Invented in 1994 by Masahiro Hara of Denso Wave for tracking automotive components, the Quick Response (QR) code is a two-dimensional matrix barcode capable of encoding up to 7,089 numeric characters or 4,296 alphanumeric characters. Unlike traditional 1D barcodes that only store data along a single horizontal axis, QR codes store information both horizontally and vertically, allowing orders-of-magnitude greater data density.

Finder & Alignment Patterns

The three large square patterns located in the top-left, top-right, and bottom-left corners allow optical sensors to detect orientation, distance, and skew angle instantly across 360 degrees of rotation.

Timing & Quiet Zone

Alternating black and white timing tracks establish the coordinate grid. An essential 4-module blank margin (the "quiet zone") surrounding the code isolates data modules from adjacent visual clutter.

Static vs Dynamic QR Codes: Which Should You Choose?

Feature	Static QR Code (360Tools)	Commercial Dynamic QR Code
Expiration Date	Never expires (Permanent)	Expires if monthly bill unpaid
Privacy & Intermediaries	100% Direct (0 Redirects)	Routes through tracking redirect server
Cost & Limits	100% Free Unlimited Scans	$10 - $50 / month recurring
Offline Functionality	Works completely offline (Wi-Fi, vCard)	Fails without active internet redirect

Frequently Asked Questions (FAQ)

Do QR codes created on this website ever expire?

No. The QR codes you generate here are 100% static. The destination payload (URL, text, Wi-Fi password, or vCard) is permanently embedded in the visual module matrix. They will work as long as the printed medium exists with zero subscription requirements.

Can I safely use this tool for private Wi-Fi passwords and sensitive contacts?

Yes, absolutely. 360Tools operates purely client-side inside your browser's execution thread. No data packets or credentials are sent to our servers or any third-party analytics provider.

How do I ensure my custom colored QR code scans reliably?

Always maintain a high contrast ratio between the foreground dots and background. The foreground dots must be significantly darker than the background (e.g., dark navy or black on white/cream). Avoid light yellow dots on white paper.

Why is SVG preferred over PNG for professional graphic design?

SVG (Scalable Vector Graphics) stores shapes as pure mathematical geometry rather than fixed raster pixels. You can scale an SVG QR code to any dimension—from a 1-inch product label to a building banner—with infinite sharpness and zero blur.