Tool library
All 33 free XSular tools — open any utility directly or read the matching tutorial for step-by-step explanations.
Blog
Practical articles on writing, development, design, and productivity — each tied to a free XSular tool you can use right away.
Understand how Unix timestamps work, why they matter for developers, and how to convert between epoch time and human-readable dates instantly.
Understand the different versions of UUIDs, when to use each type, and how to generate cryptographically random unique identifiers instantly.
Learn how to expertly format, validate, and debug complex JSON data instantly in your browser without compromising sensitive API secrets.
