Free Online Developer Tools

Easily beautify, minify, and validate your JSON data. A must-have tool for developers working with APIs and structured data.

A versatile online tool to encode text or images into Base64 strings and decode Base64 strings back to their original text or image form. Useful for data transmission, web development, and handling binary data in text formats.

Safely encode strings for use in URLs (percent-encoding) or decode percent-encoded URLs back to their original form. Essential for web development and API interactions.

Easily convert JSON data to XML format or XML to JSON online. This tool supports nested structures and provides options for formatting the output. Ideal for developers and data integration tasks.

Create customizable placeholder text (Lorem Ipsum) for your designs and mockups. Generate text by paragraphs, sentences, or words, with an option to include HTML tags. An essential developer tool.

The ultimate CSS unit converter for developers and designers. Easily convert pixels (px) to relative units like rem, em, and viewport units (vw, vh), or to absolute units like points (pt). Features configurable base values, real-time conversion, and CSS snippet generation.

An online tool to convert Tailwind CSS code with arbitrary pixel values (e.g., p-[16px]) to rem units (p-[1rem]), based on a configurable root font size. Ideal for creating scalable and responsive UIs.

Use this free HTML Formatter & Minifier tool to beautify messy HTML code or compress it for production. Format with custom indentation, preserve comments, or minify for faster performance. Perfect for developers and SEO optimization.

Format messy CSS for readability or minify it for production to improve website performance. Our tool helps you beautify or compress CSS with a single click.