Format JSON, encode Base64, convert URLs, and transform data — all instantly in your browser. No data sent to any server.
Click any tool to get started — no signup required
Beautify, minify and validate JSON data instantly. Syntax highlighting with clear error detection.
Encode text or files to Base64 and decode Base64 strings back to plain text or downloadable files.
Encode special characters in URLs for safe transmission, or decode percent-encoded URLs back to readable text.
Convert JSON arrays and objects to CSV format. Download result as a .csv file to open in Excel or Sheets.
Convert CSV data to clean JSON format. Paste your CSV or upload a .csv file and get formatted JSON output.
Your data never leaves your browser. No server processing, no logs, no tracking.
All tools run directly in your browser — results appear as you type, no waiting.
No accounts, no limits, no subscriptions. Completely free forever.
Built for developers — clean output, syntax highlighting, and easy copying.
UtilityX provides a complete set of free text processing tools built for developers, data analysts, and content creators. All tools run entirely in your browser — your data is never sent to any server, ensuring complete privacy and security.
Our JSON Formatter is the most popular tool on UtilityX. Paste any JSON data and instantly beautify it with proper indentation for readability, or minify it to reduce file size for production use. The built-in validator highlights syntax errors and shows exactly where your JSON is broken.
Base64 is widely used in web development for encoding binary data like images, files, and authentication tokens in APIs. Our Base64 Converter lets you encode any text or file to Base64 instantly, and decode Base64 strings back to their original readable form.
Need to work with JSON data in Excel or Google Sheets? Or import CSV data into a JSON-based API? Our JSON to CSV and CSV to JSON converters handle the transformation instantly in your browser. No file size limits, no uploads, completely free.
Common questions about our developer tools
Yes! All developer and text tools on UtilityX are 100% free to use. There are no limits, no hidden fees, and no subscriptions required.
No. We process all text, JSON, CSV, and Base64 data locally inside your web browser. Your data never leaves your device, ensuring complete privacy.
Because our text tools process everything client-side, once the page is fully loaded in your browser, you can often continue formatting or converting data even if your internet connection drops.
Yes. Our JSON formatter and CSV converters are optimized to handle files up to 10MB directly in the browser without freezing.
No sign-up is required. You can instantly access and use all our developer tools anonymously.