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Advanced QR Code Generator
Binod
20K+
QR codes generated
0ms
Server latency (fully client-side)
3
Export formats (PNG, SVG, PDF)
100%
Free, no sign-up required
01 The Problem
Existing QR code generators were either too basic (no customization), too slow (server-side generation), or required sign-up. The client wanted a tool that was instant, beautiful, and worked entirely in the browser.
02 Our Solution
Pure client-side QR generation using Canvas API — zero server required, zero latency. Users can customize colors, add logos, adjust error correction levels, and export as PNG, SVG, or PDF. Every setting is persisted in localStorage so your preferences are remembered.
Key Engineering Highlights
→ Entirely client-side — no server, no data collection
→ Logo embedding with automatic contrast detection
→ Custom foreground/background color picker
→ 4 error correction levels (L/M/Q/H)
→ Export to PNG, SVG, and PDF with one click
Tech Stack
JavaScriptCanvas APIQRCode.jsCSS3LocalStorage APIFile APIjsPDF
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