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Extract browser, OS, device, and engine hints from a user-agent string. Everything runs locally in this tab.
Browser: Unknown OS: Unknown Device: Desktop Engine: Unknown Node.js/22
Generate .dockerignore rules for leaner Docker builds.
Generate .gitignore files from common project templates.
Encode text or files to Base64, or decode Base64 strings back to text.
Convert plain text to binary and binary back to readable text.
Convert Unix permissions between rwx and octal notation.
Build a starter Content Security Policy header.
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