Developer Resources & Guides
Short, genuinely useful articles explaining the concepts behind our tools — JSON, Base64, UUIDs, hashing, JWTs, regex, Unix time, color formats, URL encoding, and Markdown.
What Is JSON? A Practical Introduction
JSON (JavaScript Object Notation) is a lightweight, text-based format for representing structured data, built on nested objects and arrays.
JSON vs. XML: What's the Difference?
JSON and XML both represent structured data, but differ significantly in syntax, verbosity, and typical use cases.
What Is Base64 Encoding?
Base64 encoding converts binary or text data into a text-safe format using 64 printable characters — it is encoding, not encryption.
What Is a UUID?
A UUID is a 128-bit identifier designed to be unique across systems without requiring a central coordinating authority.
Hashing vs. Encryption: What's the Difference?
Hashing is a one-way transformation used for verification; encryption is reversible and used to keep data confidential.
What Is a JWT (JSON Web Token)?
A JWT is a compact, encoded string used to pass verifiable claims between two parties, commonly for authentication.
What Is Regex (Regular Expressions)?
A regular expression is a pattern used to match, search, and manipulate text based on its shape rather than an exact value.
What Is Unix Time?
Unix time counts seconds since January 1, 1970 UTC, giving computers a single, unambiguous, timezone-independent way to represent a moment in time.
HEX vs. RGB vs. HSL: Color Formats Explained
HEX, RGB, and HSL all describe the exact same set of colors — they differ only in how they express that color to a human reading the code.
What Is URL Encoding?
URL encoding (percent encoding) replaces unsafe or reserved characters in a URL with a percent sign and their hexadecimal value.
What Is Markdown?
Markdown is a lightweight plain-text formatting syntax designed to be readable even before it's rendered into HTML.