⚡ 100% Free & Client-Side
Quick Online Developer Tools
Fast, free, and private utilities. All tools run entirely in your browser — your data and code never touch any server.
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JSON Formatter & Validator
Format, beautify, validate, and minify JSON with customizable indentation.
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Base64 Encode / Decode
Convert text to Base64 or decode Base64 strings with full UTF-8 Unicode support.
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UUID / GUID Generator
Generate bulk cryptographically random Version-4 UUIDs with custom casing and braces.
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Hash Generator
Calculate SHA-256, SHA-512, MD5, and SHA-1 hashes instantly with Web Crypto.
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JWT Decoder & Inspector
Decode and inspect JSON Web Tokens, payload claims, and expiration dates securely.
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Markdown Live Previewer
Write, preview, and format Markdown in real-time with instant HTML export.
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URL Encode / Decode
Encode or decode URLs, percent-encoded strings, and query parameters.
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Lorem Ipsum Generator
Generate customizable dummy placeholder text by paragraphs, sentences, or words.