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Powerful free tools for students, professionals & developers. No sign‑up, no fees, instant results.
Free Online Developer Tools
Format, validate, convert and transform your JSON, XML, HTML, CSS and more — instantly in your browser. No signup. No data sent to servers.
✨ JSON Formatter & Validator
Beautify, validate and inspect JSON data with syntax checking and formatting.
⚡ JSON Minifier
Strip whitespace and comments from JSON to produce a compact, production-ready payload.
🔁 JSON to XML Converter
Convert JSON data into well-formed, readable XML markup with proper element nesting.
📊 JSON to CSV Converter
Convert a JSON array of objects into a CSV spreadsheet with proper column headers.
📄 XML Formatter
Beautify and indent XML documents for improved readability and debugging.
🌐 HTML Formatter
Beautify and indent HTML markup to make your code clean and easy to read.
🎨 CSS Minifier
Remove comments, whitespace and redundancies from CSS to reduce file size for production.
🔤 Text Formatter
Transform text: change case, remove extra whitespace, reverse, word count and more.
🔐 Base64 Encoder / Decoder
Encode plain text to Base64 or decode Base64 back to human-readable text instantly.
🔗 URL Encoder / Decoder
Encode special characters in URLs or decode percent-encoded URL strings back to readable text.
Your Second Tool
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