</> Developer Tools

Developer Tools for Coding and Debugging

Every developer needs reliable utilities for everyday coding tasks. Our free developer toolkit includes JSON formatters, code minifiers, encoders/decoders, regex testers, and more — all processing locally in your browser with zero data transmission.

JSON and Code Formatting

Working with JSON data is a daily task for most developers. Our JSON formatter validates, prettifies, and minifies JSON with syntax highlighting and error detection. The code minifier reduces JavaScript, CSS, and HTML file sizes by removing unnecessary whitespace and comments — essential for production deployments and faster page loads.

Encoding and Decoding Utilities

Our Base64 encoder/decoder handles text-to-Base64 conversion for data URIs, email attachments, and API payloads. The URL encoder/decoder properly escapes special characters for query strings and form submissions. The JWT decoder lets you inspect JSON Web Token headers and payloads without external dependencies — useful for debugging authentication flows.

Regex Testing and Code Playground

Building and testing regular expressions can be time-consuming. Our regex tester provides real-time pattern matching with match highlighting and count statistics. The HTML/CSS/JS playground allows you to write and preview front-end code in a live iframe — perfect for prototyping or learning without setting up a local environment.

Colour, Diff, and Timestamp Tools

The colour picker provides HEX, RGB, and HSL values for any selected colour — useful for CSS and design work. Our text diff checker compares two text blocks line-by-line, highlighting additions and removals. The timestamp converter translates between Unix timestamps and human-readable dates, helping with API debugging and database queries.

All tools are completely free and process data locally. No code or data is ever sent to our servers. Bookmark this page for your daily development workflow.