Developer Tools Guides & Tutorials

Articles, guides and tutorials about developer tools - JSON, Base64, hashing and developer utilities. Featured reading: Common Regex Patterns You Can Test Online (Email, URL, Phone); UUID vs GUID: Generate Version 4 IDs Online (When to Use Which); JSON Formatter for Developers: Debug API Responses Fast.

Common Regex Patterns You Can Test Online (Email, URL, Phone)
Developer Tools

Common Regex Patterns You Can Test Online (Email, URL, Phone)

Test email, URL, phone and whitespace regex against real samples before production. Live highlighting, no paste-into-a-black-box.

Sep 10, 2026·2 min read
UUID vs GUID: Generate Version 4 IDs Online (When to Use Which)
Developer Tools

UUID vs GUID: Generate Version 4 IDs Online (When to Use Which)

UUID and GUID are the same 128-bit identifier. When to use v4, what is not a unique ID, and a free in-browser generator.

Sep 10, 2026·2 min read
JSON Formatter for Developers: Debug API Responses Fast
Developer Tools

JSON Formatter for Developers: Debug API Responses Fast

Pretty-print a minified API payload, find the missing comma, and minify again for production. Browser JSON formatter for debugging, not a generic intro.

Aug 13, 2026·2 min read