Password Generator
Generate cryptographically secure random passwords using crypto.getRandomValues() with length slider, character set toggles, and entropy strength meter.
QR Code Generator
100% OfflineGenerate scannable QR codes locally in your browser from any URL or text with custom pixel size, foreground/background colors, error correction, and PNG download.
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How to Use QR Code Generator
- 1Enter any URL, plain text, email, or message into the QR content input box.
- 2Select your QR Code output size (128px to 1024px) and Error Correction Level (L, M, Q, or H).
- 3Customize the Foreground (module) color and Background color using the color pickers.
- 4Scan the live QR preview directly or click 'Download PNG' to save a crisp image file.
Key Features & Privacy
- ✦Bundled with a local MIT-licensed ISO/IEC 18004 QR Code matrix encoder — zero external API calls and works 100% offline.
- ✦Full UTF-8 byte encoding support for international text and long URLs.
- ✦Customizable pixel dimensions (128px, 256px, 512px, 1024px), quiet-zone margin, and foreground/background hex colors.
- ✦Contrast checker warning if foreground and background colors have insufficient contrast for camera scanners.
Frequently Asked Questions
Do these QR codes ever expire?
Never. Because the tool encodes your text or URL directly into the static QR matrix without routing through any third-party redirect service, the QR code works forever.
Which Error Correction Level should I choose?
Level M (15% recovery) is ideal for most URLs. Choose Q (25%) or H (30%) if the printed QR code might get smudged or partially covered.
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