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Essential Tools for Modern Engineers
A curated collection of developer tools to boost your productivity. From formatters to generators, everything you need in one place.
Features
This project is an experiment to see how we can build a modern toolkit app with Next.js 15 and shadcn/ui.
JSON Formatter
Format and validate your JSON data.
Core
Base64 Converter
Encode and decode Base64 strings.
Utility
UUID Generator
Generate random UUIDs v4.
Utility
SQL Formatter
Beautify your SQL queries.
Database
Regex Tester
Test your regular expressions.
Development
Diff Viewer
Compare two text contents.
Utility
Prime Factorization
Decompose integers into prime factors.
Math
Collatz Conjecture
Visualize the 3n + 1 sequence.
Math
Hash Generator
Compute text hashes (MD5, SHA).
Security
Color Converter
Convert color formats (HEX, RGB, HSL).
Utility
Password Generator
Generate secure random passwords.
Security
QR Code Generator
Generate QR codes for URLs or text.
Utility
JWT Debugger
Decode, encode, and sign JSON Web Tokens.
Development
CSS Unit Converter
Convert between px, rem, and em units.
Utility
Markdown Previewer
Preview markdown text with GFM support.
Utility
Unix Timestamp Converter
Convert timestamps to dates and vice versa.
Date
URL Encoder/Decoder
Encode and decode URL strings.
Utility
Cron Expression Generator
Generate and explain cron expressions.
Utility
Lorem Ipsum Generator
Generate dummy text (Lorem Ipsum, Japanese).
Development
String Case Converter
Convert text between different naming cases.
Utility
Chmod Calculator
Calculate Linux/Unix file permissions.
Development
URL Parser
Parse, edit, and rebuild URLs.
Development
Number Base Converter
Convert numbers between Binary, Octal, Decimal, and Hex.
Math
GCD/LCM Calculator
Calculate Greatest Common Divisor and Least Common Multiple.
Math