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QR Code Generator

Create a QR code from text or a URL, preview it, and download it as a PNG in your browser.

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JSON Formatter

Validate JSON syntax and format valid JSON with readable indentation. Copy the formatted result directly from your browser.

Password Generator

Generate cryptographically random passwords in your browser with a chosen length and character types.

UUID Generator

Generate a random UUID version 4 with the browser Web Crypto API and copy it for your application.

Base64 Encoder / Decoder

Encode Unicode text as UTF-8 Base64 or decode Base64 back to readable text in your browser.

URL Encoder / Decoder

Encode and decode URLs, query strings, URL components, spaces and special characters instantly.

JWT Decoder

Decode JSON Web Tokens, inspect header and payload, check expiry time and read JWT claims instantly.

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