ATRX Dev Tools
A collection of handy developer tools and articles — fast, free, and right in your browser.
Tools
Browser-based utilities to speed up your workflow
API Request Tester
Send HTTP requests and inspect responses directly from your browser
Open tool →Base64 Encode / Decode
Encode text to Base64 or decode Base64 back to text
Open tool →BMI Calculator
Calculate your body mass index easily
Open tool →Color Converter
Convert colors between HEX, RGB, and HSL formats
Open tool →Compound Interest Calculator
Calculate how your savings or investments grow over time with compound interest
Open tool →Hash Generator
Generate MD5, SHA-1, SHA-256, and SHA-512 hashes from any text input
Open tool →Articles
Guides, tips, and insights for developers
Why You Should Never Reuse Passwords Across Websites
Learn why reusing the same password across multiple sites is dangerous and how one breach can put many of your accounts at risk.
Read more →Why Secure Passwords Are Essential for Protecting Your Online Accounts
Learn why strong passwords matter, what makes a password secure, and how to protect your accounts from common attacks.
Read more →Why Every Developer Needs a BMI Calculator
How a simple health tool can help developers stay on top of their wellness goals.
Read more →What Makes a Password Truly Secure?
A clear explanation of password length, entropy, randomness, and character combinations, plus what actually matters most when creating stronger passwords.
Read more →The Most Common Passwords Used Around the World
A practical look at the weak passwords people still choose globally, why they are dangerous, and how attackers exploit them at scale.
Read more →Password Managers vs Writing Passwords Down
A practical comparison of password managers and written password storage, including the tradeoffs, risks, and safer ways to store credentials.
Read more →