Generate Custom QR Codes Instantly Online
Create high-resolution QR codes for websites, Wi-Fi passwords, contact cards, and text messages. Customize colors, add frames, and download print-ready PNG and SVG files.
How to Generate a QR Code
Create high-resolution QR codes for websites, Wi-Fi passwords, contact cards, and text messages. Customize colors, add frames, and download print-ready PNG and SVG files.
Select Content Type
Choose the data format: Website URL, Plain Text, Wi-Fi Network credentials, Email, or vCard contact.
Input Information
Type your destination URL or credentials into the designated input fields.
Customize Visual Style
Adjust foreground and background colors, and select error correction levels (L, M, Q, H).
Download QR Code
Save your freshly generated QR code as a high-resolution PNG image or scalable SVG vector file.
Why Generate QR Codes with Khalasna?
100% Client-Side Privacy
Your private Wi-Fi passwords, phone numbers, and URLs are generated locally and never sent to servers.
Vector SVG & High-Res PNG
Download scalable vector SVG files for professional print design or crisp PNG images for digital use.
Reed-Solomon Error Correction
Configurable redundancy levels (up to 30% damage recovery) ensuring reliable mobile camera scans.
Never Expiring Permanent Codes
Generates direct static QR codes that function indefinitely with zero redirects or third-party ads.
Technical Architecture: Reed-Solomon Error Correction & 2D Matrix Generation
QR (Quick Response) codes are two-dimensional matrix symbologies specified by ISO/IEC 18004. Khalasna executes QR code synthesis client-side using JavaScript matrix generators. The input data is analyzed to select the most compact encoding mode (Numeric, Alphanumeric, Byte, or Kanji). The bitstream is partitioned into blocks, and Reed-Solomon error correction polynomials are computed. Depending on your chosen resilience tier (Level L: 7%, M: 15%, Q: 25%, H: 30% recovery), redundant error-correction codewords are interleaved with data blocks. Finder patterns (position detection squares), timing patterns, and alignment modules are placed on a square grid. The engine evaluates eight standard mask patterns to minimize visual clumping, drawing the finalized binary matrix onto an off-screen HTML5 Canvas or generating crisp SVG path elements (<path d='...'>). All generation occurs locally in browser memory with zero tracking.
Popular Applications for QR Code Generation
Restaurant Menus & Signage
Direct patrons to contactless digital food menus, daily specials, and social media pages.
Instant Wi-Fi Guest Access
Let guests connect to office or home Wi-Fi networks by scanning without typing complex passwords.
Business Cards & Event Badges
Encode digital vCard contact information, personal portfolios, and conference attendee credentials.
Frequently Asked Questions
Do these QR codes expire or have scan limits?
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Do these QR codes expire or have scan limits?
+No. These are direct static QR codes. They embed your raw data directly into the matrix, so they never expire and have unlimited scans.
Are my Wi-Fi credentials or links sent to your servers?
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Are my Wi-Fi credentials or links sent to your servers?
+No. The entire QR generation process runs 100% locally in your web browser. Your credentials are never transmitted.
Can I download the QR code as a vector SVG for printing?
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Can I download the QR code as a vector SVG for printing?
+Yes, you can export scalable vector SVG files that remain infinitely crisp at any print billboard size.
What error correction level should I choose?
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What error correction level should I choose?
+Level M (15%) is standard for general use. Choose Level H (30%) if you plan to print outdoors or place a logo in the center.
Is this QR code generator completely free?
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Is this QR code generator completely free?
+Yes, Khalasna provides free unlimited access to QR code generation without subscriptions or hidden redirect ads.