Base64 Encoder and Decoder
Encode text to Base64 or decode Base64 strings back to plain text.
Developer Tools
Format, encode, decode, and validate data with JSON, Base64, URL, HTML, regex, UUID, hash, and color tools.
Our free online developer tools streamline common coding tasks. Format and validate JSON with syntax highlighting, encode and decode Base64 strings, handle URL percent-encoding, convert HTML entities, test regular expressions with real-time match highlighting, generate UUID v4 identifiers, create MD5 and SHA-256 hashes, and convert color codes between HEX, RGB, and HSL. All tools run entirely in your browser using secure Web Crypto APIs where applicable. Essential utilities for web developers, backend engineers, QA testers, and DevOps professionals working with data encoding and validation daily.
Available Tools
Color Code Converter
Convert color codes between HEX, RGB, and HSL formats instantly.
Hash Generator
Generate MD5, SHA-1, and SHA-256 hashes from any text input.
HTML Entity Encoder and Decoder
Encode special characters as HTML entities or decode them back.
JSON Formatter and Validator
Format, validate, and pretty-print JSON with syntax highlighting.
Regex Tester
Test regular expressions with real-time match highlighting.
URL Encoder and Decoder
Encode special characters for URLs or decode percent-encoded strings.
UUID Generator
Generate random UUID v4 identifiers instantly with one click.