Developer Blog
In-depth guides, tutorials, and best practices for developers.
How to Clean and Normalize Text Data: Pipelines & Examples
Practical text cleaning techniques: remove duplicates, strip whitespace, fix line endings, normalize Unicode — with JavaScript, Python, and command-line examples.
Regular Expressions Cheat Sheet with Examples
Practical regex cheat sheet with explained examples: character classes, quantifiers, groups, lookaround, and real-world patterns for validation and text extraction.
Text Processing Tips for Developers: Count, Convert, Sort
Practical text manipulation techniques: count words, convert case, sort lines, reverse strings, build pipelines — with JavaScript, Python, and shell examples.
CSS Color Formats: HEX vs RGB vs HSL vs OKLCH
CSS color formats compared: HEX, RGB, HSL, and modern OKLCH. When to use each, browser support, and tips for choosing the right format with code examples.
How to Generate Strong Secure Passwords in 2026
Learn what makes a password strong, how password cracking works, why length beats complexity, and how to generate and manage secure passwords. Includes code examples and practical tips.
How to Convert JSON to CSV: Complete Guide
Learn how to convert JSON data to CSV format. Covers flat arrays, nested objects, different approaches in JavaScript, Python, Go, and the command line. Includes common pitfalls and FAQ.
Base64 Encoding Explained with Examples
How Base64 encoding works, why it exists, and when to use it. Examples in JavaScript, Python, Go, and shell. Covers data URIs, email attachments, JWTs, and pitfalls.
HTML Entities: Complete Reference Table with Examples
A practical reference for HTML entities — named entities, numeric codes, and when to use them. Covers special characters, symbols, arrows, currency signs, and more.
MD5 vs SHA-256: Which Hash Algorithm Should You Use?
MD5 vs SHA-256 compared: differences in security, speed, output size, and use cases. Code examples in Python, Node.js, and bash with practical guidance.
URL Encoding & Percent-Encoding: Complete Guide with Examples
Complete URL encoding guide: how percent-encoding works, encodeURI vs encodeURIComponent, which characters need encoding, code examples, and common pitfalls.
URL Slug Best Practices: SEO-Friendly URLs in 2026
Create SEO-friendly URL slugs: best practices for length, characters, keywords, transliteration, and common mistakes — with code examples.
UUID vs GUID: Versions, Differences, and When to Use Each
Understand the difference between UUID and GUID, learn about UUID versions (v1, v4, v7), and find out which version to use for database keys, APIs, and distributed systems. Code examples in JavaScript, Python, Go, and SQL.
Cron Expression Syntax Explained: A Visual Guide with Examples
Learn cron expression syntax with clear examples. Understand the five fields, special characters, and common schedules used in crontab, Kubernetes, GitHub Actions, and CI/CD pipelines.
How to Read and Debug JSON: Tree View vs Raw Text
Learn practical techniques for reading, navigating, and debugging JSON data. Compare tree view and raw text approaches, and find the right tool for your workflow.
JSON vs YAML: Differences, Conversion, and When to Use Each
A practical comparison of JSON and YAML formats. Learn the syntax differences, pros and cons of each, when to use which, and how to convert between them.
JWT Tokens Explained: Structure, Validation, Pitfalls
How JSON Web Tokens work: the three-part structure, decoding and validating JWTs, HS256 vs RS256, common security mistakes, and when to use them in production.
Unix Timestamp: What It Is and How to Convert It
Learn what Unix timestamps are, why they exist, how to convert them to human-readable dates, and how to work with them in JavaScript, Python, and other languages.