Blog
Tips, guides, and insights for developers.
Unix Timestamp Converter: What It Is and How to Use It
Confused by Unix timestamps? Learn what epoch time is, why developers use it, how to convert timestamps to readable dates, and find common timestamp values.
Base64 Encoding Explained: What It Is and When to Use It
Base64 isn't encryption — learn what it actually does, why developers use it to encode images and API credentials, and how to encode/decode online for free.
How to Compare Two Texts Online with a Diff Checker
Quickly spot differences between two code snippets, config files, or documents with a free online diff checker — no downloads, no login required.
Regex Tester Guide for Beginners: Test Patterns Online
New to regular expressions? Learn the essential regex syntax, common patterns for emails, URLs, and phone numbers, and how to test them online — instantly.
What Is a UUID and How to Generate One Online
Understand what UUIDs are, the difference between UUID v1, v4, and v5, and how to generate collision-free unique IDs instantly — free and browser-based.
How to Create Strong Passwords (And Why It Matters)
Learn what makes a password truly secure, common mistakes to avoid, and how to generate strong passwords instantly with ujiffy's free tool.
How to Generate Secure Passwords Online
Understand what makes a password truly secure, learn the most common attack vectors, and discover how to generate strong random passwords instantly with ujiffy's free Password Generator.
How to Format JSON Online (Free Tool)
Learn why JSON formatting matters, when you need it, and how to use ujiffy's free JSON Formatter to beautify or minify JSON instantly — no signup required.