Free Online Developer Tools
An essential suite of fast, secure, and client-side utilities designed for modern web developers. Format code, debug tokens, and convert data without ever uploading your sensitive information.
All Developer Tools
JSON Formatter & Validator
Format, validate, and beautify your JSON data.
Base64 Encoder / Decoder
Encode text to Base64 or decode from Base64.
URL Encoder / Decoder
Encode and decode URL-safe strings.
JWT Debugger
Decode and inspect JSON Web Tokens (JWT).
Unix Timestamp Converter
Convert between Unix timestamps and dates.
Hash Generator
Generate SHA-1, SHA-256, and SHA-512 hashes.
MD5 Hash Generator
Generate an MD5 hash of a string.
Password Strength Visualizer
Check the strength of your password.
Regex Pattern Tester & Builder
Test and debug regular expressions.
Color Converter
Convert HEX, RGB, and HSL colors.
CRON Job Explainer
Translate CRON syntax into plain English.
Random String & UUID Generator
Generate secure random strings, passwords, and UUIDs.
HTML Formatter
Format and beautify your HTML code.
CSS Formatter
Format and beautify your CSS code.
SQL Formatter
Format and beautify your SQL queries.
Config File Generator
Generate common config files (nginx, webpack, .htaccess).
HTML Encoder / Decoder
Convert characters to their HTML entities.
JavaScript Formatter
Format and beautify your JavaScript code.
JSON Schema to Form Generator
Generate an HTML form from a JSON Schema.
HTML Table to JSON Converter
Convert HTML table data into JSON.
JSON to Zod Schema
Generate a Zod schema from a JSON object.
XML to YAML
Convert XML data to YAML format.
YAML to CSV
Convert YAML data to CSV format.
YAML to XML
Convert YAML data to XML format.
XML to CSV
Convert XML data to CSV format.
The Secure Advantage for Developers
Stop pasting sensitive API keys, tokens, and proprietary code into websites that process your data on their servers. Our tools run entirely in your browser, providing a secure sandbox for your development tasks.
Absolute Privacy
Your code and data never leave your machine. Format JSON, decode Base64, or inspect JWTs with the guarantee that nothing is ever transmitted or logged.
Instantaneous Speed
Without network latency or server queues, our tools provide instant feedback. Format large code blocks or test regex patterns in real-time without any delay.
Focused Utilities
From a powerful JSON Formatter to a reliable Regex Tester, get the job done right without context switching.