Free Developer Tools Online — JSON, JWT, Regex, Hash & More — All Client-Side
Essential utilities for coding, debugging, and data transformation.
JSON Formatter
Beautify, minify, and validate JSON structures.
JWT Decoder
Decode and inspect JSON Web Tokens locally.
SQL Formatter
Format SQL queries for better readability.
Cron Builder
Easily generate and explain cron expressions.
URL Encoder
Properly encode or decode URL parameters.
Base64 Encoder/Decoder
Convert text/images to/from Base64 strings.
Regex Tester
Test and debug regular expressions in real-time.
CSV to JSON
Convert CSV data to structured JSON objects.
XML Formatter
Beautify or minify XML code instantly.
Markdown Tool
Transform Markdown into clean HTML code.
Text to Binary
Convert text to binary code or vice versa.
Password Generator
Generate secure, random passwords locally.
Schema Generator
Create JSON-LD structured data for rich snippets.