QR Code Generator
Create high-res custom QR codes with logo uploads, colored frames (like 'Scan Me'), and custom themes. Supports URLs, Wi-Fi setups, contact vCards, emails, SMS, and calls. Download in PNG, JPEG, or scalable vector SVG formats with zero tracking and full privacy.
Create high-res custom QR codes with logo uploads, colored frames (like 'Scan Me'), and custom themes. Supports URLs, Wi-Fi setups, contact vCards, emails, SMS, and calls. Download in PNG, JPEG, or scalable vector SVG formats with zero tracking and full privacy.
This tool is designed to provide a seamless experience for developers by handling complex operations directly in your browser with maximum speed and security.
QR stands for Quick Response. A QR code is a two-dimensional barcode that encodes data as a grid of black and white squares — far more information than a traditional one-dimensional barcode can hold. A standard QR code can store up to 4,296 alphanumeric characters or 7,089 numeric digits, which is enough to encode a full URL, a contact card, a WiFi password, or several paragraphs of plain text in a single scannable image. Any smartphone camera released in the last five years can scan a QR code without a separate app.
QR codes were invented in 1994 by Masahiro Hara at Denso Wave, originally for tracking automotive parts in manufacturing. They were designed to be decoded quickly — hence Quick Response — and to be readable even when partially damaged or dirty, which is why they encode data with redundancy built in. That redundancy is also why you can overlay a logo in the center of a QR code and it still scans correctly — up to 30% of the QR code's data modules can be covered and the code remains readable due to error correction.
The data in a QR code is structured in zones. The three large squares in the three corners are finder patterns — they tell the scanner where the QR code starts and what its orientation is. The smaller squares near the corners are alignment patterns that help the scanner correct for perspective distortion when the code is photographed at an angle. The remaining modules encode the actual data using one of four encoding modes: numeric (digits only), alphanumeric (letters and digits), binary (any byte data), or kanji (Japanese characters). Most URL-encoding QR codes use binary mode since URLs contain characters like colons, slashes, and dots.
Read the Full GuideThis state-of-the-art QR Code Generator enables you to construct customized, highly recognizable, and interactive two-dimensional barcodes completely inside your web browser. This tool handles multiple complex schema representations including standard URLs, raw text strings, Wi-Fi credentials (with custom encryption parameters and broadcast hidden states), standard vCards (for business contact cards containing names, phones, emails, organizations, notes, and URLs), pre-addressed emails, SMS texts, and direct phone call triggers. Beyond basic content mapping, the engine features an extensive graphic-styling suite. It allows you to select customized color schemes, insert branded iconography (such as custom-uploaded company logos) in the center with high error correction protection, and wrap the code with attention-grabbing CTA (Call-to-Action) frames (such as banners or speech bubbles). All final compositions can be exported in formats tailored to different channels: pixel-perfect PNG and JPEG images of up to 2048px for web use, or infinite-resolution vector SVGs for professional, large-format printing. The entire process takes place client-side, ensuring complete data security and privacy as none of your confidential information ever touches an external server.
1. Select your QR Code Type from the available content options: URL, Plain Text, Wi-Fi network, vCard Contact, Email Draft, SMS Message, or Phone Call.
2. Input the corresponding text, credentials, or numbers into the dedicated form fields. The QR code compiles instantly.
3. Navigate to the Design & Branding tab to customize styling. Select from modern color presets (e.g. Classic Dark, Cyberpunk, Ocean Blue) or use the manual color pickers (including transparent background options).
4. Choose a Preset Logo (e.g. Link, Wi-Fi, Phone, Email) or click Upload Custom Logo to add your own brand's image (PNG, JPEG) centered inside the QR code with adjustable sizing and auto-excavation.
5. Select a QR Frame Style (None, Solid Border, Banner Badge, or Speech Bubble) and customize the call-to-action text (like 'SCAN ME', 'GET WI-FI', or 'CALL US') alongside the frame's color.
6. Select your target Download Size (px) and save the results: copy the raw SVG markup directly, or download as a high-resolution PNG, JPEG, or vector SVG file ready for print or digital deployment.
While standard QR codes are highly functional, they are often visually plain and fail to attract engagement or represent your brand. By using our advanced builder, you can add custom logos, elegant color schemes, and explicit text call-to-actions (like 'Scan Me') that can increase scan-through rates by up to 30%. Whether you are setting up marketing flyers, physical product packaging, restaurant menus, business cards, or event signage, a beautifully styled QR code looks professional and guides users seamlessly from physical formats directly into your digital platforms. For developers and administrators, this tool is invaluable because it is 100% free, runs client-side with no watermarks, has no scan-tracking URL redirect limits, and supports both SVG vectors and high-res raster files. This means your URLs are encoded directly and permanently, with zero reliance on third-party redirection servers that could break in the future or compromise user privacy. It is also perfect for setting up Wi-Fi network scanning signs for offices or guests, converting vCards into tap-to-save contact triggers, or streamlining mobile application testing on local servers by generating quick scannable URLs.
Custom Logo Overlay: Upload a personal or company logo image with smart background excavation to enhance brand recognition
Eye-Catching Frames: Wrap your QR codes with responsive call-to-action banners, speech bubbles, or borders
No Watermark or Tracking: Downloads are 100% free with direct destination encoding and zero redirect intermediate URLs
Vector SVG Export: Download lossless scalable vector graphics (SVG) in addition to crisp PNG and JPEG raster images
Multi-Format Content: Generates schemas for Wi-Fi networks, full vCard contacts, pre-filled emails, SMS drafts, and phone calls
Local Browser Processing: Runs fully client-side to keep your sensitive credentials and private links safe and confidential
Color Customizer: Style the foreground and background with manual color hex pickers or apply stunning color presets
Custom Resolutions: Choose from multiple pixel dimensions for perfect rendering across different screen sizes and print media
Generating branded QR codes for printed marketing materials like flyers, posters, and business cards that link to a website or landing page
Creating QR codes with customized 'Get Wi-Fi' frames to allow office guests to instantly connect to unsecured or hidden networks
Generating standard vCard contact card codes so scanning a business card saves your phone, email, and company details automatically
Exporting vector SVG QR codes for giant high-quality signage, banners, or trade show exhibits without any loss of print sharpness
Creating pre-formatted SMS or Email drafts for customer support feedback, contact forms, or subscription opt-ins
Streamlining mobile application testing by creating quick scannable local server URLs on a physical testing device
Example Input
Input: https://www.learnhubly.com/tools Size: 256px Foreground: #1e293b (dark slate) Background: #ffffff (white)
Example Output
QR Code generated successfully. Size: 512 x 512 pixels Encoded content: https://www.learnhubly.com/tools Foreground color: #18181b Background color: #ffffff Logo style: Custom uploaded Frame style: Banner Badge with text 'VISIT SITE' Format: SVG vector or PNG (downloadable) Scan with any smartphone camera to test the integration instantly.
Low Color Contrast Between Foreground and Background: Ensure the foreground dots color is significantly darker than the background color. Low contrast (e.g., light blue on white) makes the QR code extremely difficult for phone cameras and optical scanners to decode under suboptimal lighting conditions.
Encoding Extremely Long URLs or Heavy Text Blocks: Very long text strings require denser QR grid matrices, making the individual dots tiny and harder to read at small print sizes. For physical printouts, use clean redirect URLs or a URL shortener to keep the character count brief and the QR pattern simple.
Custom Logo Obstructing Key QR Data Modules: When uploading a custom logo, it sits in the center of the QR code. To prevent scanning failure, ensure the 'Error Correction' setting is set to High (H) to allow for up to 30% data loss recovery, and adjust the logo size to occupy no more than 20-25% of the total area.
Missing Protocols (http:// or https://) on Website Links: If a URL is entered without its preceding protocol (like 'google.com' instead of 'https://google.com'), some older smartphone cameras will interpret the scanned content as plain text rather than prompting the user to open it as an active web link. Always input the full web address.
Using Transparent Backgrounds on Dark Material: If you download a QR code with a transparent background and place it over a dark design, the scanner will not be able to differentiate the dark foreground dots from the background. Always ensure the background area has sufficient brightness and contrast when inlining.
Low Color Contrast Between Foreground and Background
Fix: Ensure the foreground dots color is significantly darker than the background color. Low contrast (e.g., light blue on white) makes the QR code extremely difficult for phone cameras and optical scanners to decode under suboptimal lighting conditions.
Encoding Extremely Long URLs or Heavy Text Blocks
Fix: Very long text strings require denser QR grid matrices, making the individual dots tiny and harder to read at small print sizes. For physical printouts, use clean redirect URLs or a URL shortener to keep the character count brief and the QR pattern simple.
Custom Logo Obstructing Key QR Data Modules
Fix: When uploading a custom logo, it sits in the center of the QR code. To prevent scanning failure, ensure the 'Error Correction' setting is set to High (H) to allow for up to 30% data loss recovery, and adjust the logo size to occupy no more than 20-25% of the total area.
Missing Protocols (http:// or https://) on Website Links
Fix: If a URL is entered without its preceding protocol (like 'google.com' instead of 'https://google.com'), some older smartphone cameras will interpret the scanned content as plain text rather than prompting the user to open it as an active web link. Always input the full web address.
Using Transparent Backgrounds on Dark Material
Fix: If you download a QR code with a transparent background and place it over a dark design, the scanner will not be able to differentiate the dark foreground dots from the background. Always ensure the background area has sufficient brightness and contrast when inlining.
Git Cheatsheet
Quick reference guide for essential Git commands, branching workflows, remote repositories, stashing, and rollbacks.
Regex Cheatsheet
Interactive guide to Regex anchors, character classes, quantifiers, lookarounds, capturing groups, and search flags.
HTTP Headers Cheatsheet
Complete guide to standard and security HTTP headers including Authorization, CORS control, caching policies, and CSP directives.
SQL Cheatsheet
Complete guide to SQL statements including SELECT queries, WHERE filters, aggregate functions, JOIN types, and DDL commands.
Are the generated QR codes dynamic or static?
These are static QR codes. They encode your actual input content directly into the pattern of modules with no middle-man redirects or dynamic tracking links. This ensures your QR code will remain functional forever and can never expire or be hijacked by a third-party domain.
Can I upload my own company logo to the center of the QR code?
Yes! You can choose from our built-in preset logos (Link, Wi-Fi, Email, Phone, Star) or upload any custom PNG, JPEG, or SVG image. When a logo is active, the tool automatically enforces High (H) error correction and can optionally 'excavate' (clear) the QR code modules behind the logo so they don't overlap.
What is the benefit of the Vector SVG export format?
SVGs are Scalable Vector Graphics, meaning they are described mathematically rather than by a grid of pixels. This allows you to scale the QR code to any size—from a giant billboard to a tiny shipping label—without any loss of sharpness or resolution, making SVG the preferred format for professional graphic designers and printers.
How do the QR code frames work?
Frames add a visual wrapper around your QR code with a clear action message (such as 'SCAN ME', 'GET WI-FI', or 'VISIT SITE') and customizable color. These frames are generated natively as part of the unified vector SVG or raster download, making it easy to drop a ready-to-use branded asset into your layouts.
Does this generator save or log any of my data?
Absolutely not. All generation and customization logic is executed entirely inside your browser using client-side JavaScript. Your Wi-Fi passwords, contact details, email addresses, and private URLs are never transmitted to any external server, guaranteeing total privacy and security.
Recent Activity
No recent activity