ToolBox Image — Как создавать собственные QR-коды онлайн бесплатно — Полное руководство 2026

How to Generate Custom QR Codes Online — Complete Guide 2026

QR codes (Quick Response codes) are two-dimensional barcodes that can store URLs, text, contact information, WiFi credentials, and more. Unlike traditional barcodes that store data horizontally, QR codes store data both horizontally and vertically, allowing them to hold significantly more information. A single QR code can contain up to 4,296 alphanumeric characters or 2,953 bytes of binary data.

Our QR Code Generator lets you create custom QR codes with your choice of colors, sizes, and error correction levels — all directly in your browser without uploading anything to any server. This guide covers everything from basic QR code generation to advanced features like custom colors, logo overlays, and choosing the right error correction level.

Types of QR Codes You Can Generate

Our free QR code generator supports six types of QR codes for different use cases:

• URL QR Code — Encodes a web address. When scanned, it opens the URL in the device's browser. Ideal for websites, landing pages, app downloads, and social media profiles.
• WiFi QR Code — Encodes WiFi network credentials (SSID, password, encryption type). Scanning connects the device to the network instantly without typing passwords. Supports WPA/WPA2, WEP, and open networks.
• vCard QR Code — Encodes contact information as a vCard (Virtual Contact File). Scanning saves the contact directly to the phone's address book. Includes name, phone, email, organization, and address fields.
• Email QR Code — Encodes an email address with optional subject and body. Scanning opens the default email app with the fields pre-filled.
• SMS QR Code — Encodes a phone number with optional message body. Scanning opens the messaging app with the number and text pre-filled.
• Phone QR Code — Encodes a phone number. Scanning prompts the device to call the number.

How to Use the QR Code Generator

Creating a custom QR code with our tool takes just a few steps:

1. Choose QR type — Select the type of QR code you want to create: URL, WiFi, vCard, Email, SMS, or Phone.
2. Enter your data — Fill in the fields for your chosen type. For URL, enter the web address. For WiFi, enter the network name (SSID), password, and select the encryption type. For vCard, enter name, phone, email, and other contact details.
3. Customize appearance — Choose the foreground color, background color, and size (pixels) for your QR code. The preview updates in real time as you adjust settings.
4. Select error correction level — Choose from L (Low, 7%), M (Medium, 15%), Q (Quartile, 25%), or H (High, 30%). Higher levels allow more damage before the code becomes unscannable but produce denser patterns.
5. Download — Download your QR code as PNG (for web and digital use) or SVG (for print and scalable graphics).

Error Correction Levels Explained

QR codes include built-in error correction that allows them to be read even when partially damaged or obscured. There are four levels:

• L (Low — 7%) — Recovers up to 7% of damaged data. Best for controlled environments where the code won't get dirty or damaged. Produces the least dense QR codes, making scanning faster.
• M (Medium — 15%) — Recovers up to 15% of damaged data. A good balance for most use cases. Suitable for printed materials that might get minor wear.
• Q (Quartile — 25%) — Recovers up to 25% of damaged data. Recommended for QR codes on products, outdoor signage, or surfaces that may get dirty or scratched.
• H (High — 30%) — Recovers up to 30% of damaged data. Best for harsh environments where the code may be significantly damaged. Produces the densest patterns but offers maximum reliability.

Our QR code maker defaults to M (15%), which provides reliable scanning for most scenarios while keeping the pattern relatively simple for fast scanning.

Customizing Your QR Code

Make your QR code stand out with these customization options:

• Foreground color — Change the color of the QR code modules (the dark squares). Choose any color to match your brand or design.
• Background color — Set a custom background color. Light backgrounds work best for reliable scanning.
• Size (pixels) — Adjust the output size from 200×200 to 2000×2000 pixels. Larger sizes are better for print; 500×500 is ideal for most digital use cases.
• PNG or SVG download — PNG is best for digital use and social media. SVG is ideal for print, as it scales to any size without losing quality.

Use Cases for Custom QR Codes

• Restaurant menus — Generate a URL QR code linking to your digital menu. Print it on table tents, stickers, or signage.
• WiFi sharing — Create a WiFi QR code and print it on a card for guests. Scanning connects them to your network without sharing the password verbally.
• Digital business cards — Generate a vCard QR code and add it to your email signature or print it on your business card. Recipients scan to save your contact instantly.
• Event check-in — Use QR codes on tickets for fast, contactless event check-in.
• Marketing materials — Add QR codes to flyers, brochures, posters, and product packaging linking to landing pages, promotions, or video demos.
• Contactless payments — Generate a phone or URL QR code for payment links.

Privacy and Security Benefits

Our QR code maker online generates codes entirely in your browser. The data you enter — whether it is a URL, WiFi password, or contact information — never leaves your device. There is no server-side processing, no data logging, and no third-party access to your QR code content. This is especially important for WiFi QR codes containing network passwords and vCard QR codes containing personal contact details. All processing happens locally using client-side JavaScript, following the same privacy-first approach as all ToolBox Image tools.

Frequently Asked Questions

What is the best error correction level for QR codes?

The default M (15%) level works well for most use cases. Use L (7%) for simple, clean environments. Use Q (25%) or H (30%) for outdoor signage, product labels, or any situation where the QR code may get dirty, scratched, or partially obscured.

Can I change the color of a QR code?

Yes, our QR code generator lets you set custom foreground and background colors. For reliable scanning, ensure sufficient contrast between foreground and background — dark foreground on a light background works best.

What is the difference between PNG and SVG QR codes?

PNG is a raster format best for digital use — social media, websites, and email. SVG is a vector format that scales to any size without quality loss, making it ideal for print. Our tool generates clean SVGs that print crisply at any size.

Can I scan a QR code from a screenshot?

Yes, most modern phones can scan QR codes from screenshots using the default camera app or photo gallery. This is useful for sharing QR codes through messaging apps or saving them for later use.

How much data can a QR code store?

A standard QR code (version 40, error correction L) can store up to 4,296 alphanumeric characters or 2,953 bytes of binary data. Higher error correction levels reduce the maximum capacity. For most practical purposes — URLs, short text, and contact info — the capacity is more than sufficient.

Do QR codes expire?

QR codes themselves do not expire. They contain static data encoded in the pattern. However, URL QR codes can become invalid if the linked website changes or goes offline. Our QR code generator creates static QR codes with permanent patterns.

Is it safe to generate QR codes with sensitive information?

Yes, because our tool processes everything in your browser. Your data never reaches a server, so WiFi passwords, contact details, and other sensitive information stay on your device. However, once generated, anyone who can scan the QR code can read its contents — treat QR codes like printed text.