What is Base64 Encoding?
Understanding Base64 encoding, how it works, and why it's essential for web development.
Learn about encoding, hashing, security best practices, and more. In-depth guides to help you understand the tools you use every day.
43 articles across 19 tools
3 articles
Understanding Base64 encoding, how it works, and why it's essential for web development.
Complete guide to encoding and decoding Base64 in JavaScript, including handling Unicode and binary data.
A critical security reminder: Base64 encoding provides zero security. Understanding why and what to use instead.
3 articles
Why URLs need encoding, which characters must be escaped, and how percent-encoding works.
Understanding encodeURI vs encodeURIComponent and when to use each JavaScript function.
How improper URL encoding leads to security vulnerabilities like XSS and injection attacks.
3 articles
A comprehensive guide to JWTs: what they are, how they work, and their role in modern authentication.
Critical security considerations when implementing JWT authentication in your applications.
Comparing JWTs with traditional session-based authentication to help you choose the right approach.
3 articles
From Toyota factories to global ubiquity: the fascinating origin story of QR codes.
Understanding the structure, encoding, and error correction that makes QR codes reliable.
A curated list of QR code libraries for generating and scanning QR codes in JavaScript applications.
3 articles
Everything you need to know about JSON - syntax, data types, and best practices.
Parse, stringify, and manipulate JSON data effectively in JavaScript applications.
How to define and validate JSON data structures using JSON Schema.
2 articles
Understanding the different UUID versions, their use cases, and how to choose the right one.
Best practices for storing and indexing UUIDs in SQL and NoSQL databases.
2 articles
Understanding hash functions, their properties, and when to use different algorithms.
Why regular hashing is wrong for passwords and how to properly secure user credentials.
2 articles
The math behind password strength: what entropy means and why it matters.
How to generate truly random passwords using proper cryptographic methods.
2 articles
Learn regex from scratch with clear examples and explanations.
Lookaheads, lookbehinds, and other advanced regex features for power users.
2 articles
Complete guide to cron syntax, with examples for common scheduling patterns.
How to use cron expressions in JavaScript applications for task scheduling.
2 articles
Write readable, maintainable SQL with consistent formatting conventions.
Understanding SQL injection attacks and how to write secure database queries.
2 articles
2 articles
HEX, RGB, HSL, and more: understanding different color representations for web development.
Ensuring your color choices are accessible to all users with WCAG compliance.
2 articles
A comparison of YAML and JSON formats, their strengths, and appropriate use cases.
Common YAML pitfalls that cause bugs and how to avoid them.
2 articles
Understanding the algorithms behind text comparison tools like Git diff.
Libraries and techniques for comparing text in JavaScript applications.
2 articles
2 articles
Understanding binary, octal, decimal, and hexadecimal number systems and their uses in computing.
How to convert between number bases using JavaScript's built-in methods.
2 articles
The surprising 500-year history of the world's most famous placeholder text.
Fun and useful alternatives to Lorem Ipsum for placeholder text.
2 articles
How to use .env files for configuration, best practices, and common patterns.
How to handle environment variables securely and avoid common mistakes.