Blog
Tutorials, guides, and tips for developers. Learn tools, sharpen skills, and level up your workflow.
SQL Query Cheat Sheet for Developers
Essential SQL query reference. SELECT, JOIN, GROUP BY, window functions, subqueries, and query optimization tips for daily development.
JavaScript Array Methods Cheat Sheet
Complete JavaScript array methods reference with examples. From map() and filter() to flatMap() and toSorted() — every ES6+ method explained.
HTML Entities Reference: Complete List of Escape Codes
Complete HTML entities reference with escape codes. Find common symbols, special characters, currency signs, and mathematical operators.
HTTP Status Codes Cheat Sheet: Every Developer Should Know
Complete HTTP status code reference. Every response code explained — 1xx informational, 2xx success, 3xx redirect, 4xx client error, 5xx server error.
Git Commands Cheat Sheet: From Beginner to Advanced
Essential Git commands reference for daily development. From git init to interactive rebase — commands, options, and practical examples.
CSS Units Cheat Sheet: px, em, rem, vw, vh and Beyond
Complete CSS units reference — absolute vs relative, viewport units, calc(), and when to use each. Includes responsive design patterns.
Cron Expression Guide: Every Schedule Pattern Explained
Master cron expressions with this complete guide. Syntax, special strings, 25+ common schedule examples, troubleshooting, and cloud-specific formats.
5 Developer Tools That Respect Your Privacy
Discover privacy-first developer tools that run entirely in your browser — no server uploads, no data collection, no tracking.
UUID v4 vs UUID v7: Which One Should You Use?
Compare random vs time-ordered UUIDs, database index performance, and when to choose each version for your project.
How to Decode JWT Tokens Without a Backend
Learn to decode and inspect JWT tokens client-side. Understand headers, claims, signatures, and common security pitfalls.
Unix Timestamp Cheat Sheet for Developers
Master Unix timestamps: seconds vs milliseconds, timezone gotchas, JWT exp checks, and one-liners for 8 programming languages.
10 Free Online Developer Tools to Supercharge Your Workflow in 2026
Discover 10 essential free developer tools for 2026 — all privacy-first and running locally in your browser.
JSON Formatting 101: How to Debug JSON Data Like a Pro
Master JSON formatting, validation, and debugging with practical tips for cleaner API debugging.
Base64 Encoding & Decoding: What Every Developer Needs to Know
Learn how Base64 works, when to use it, and browser pitfalls. Includes practical examples with data URLs and JWT.
The Complete Guide to Writing Better Regular Expressions
Practical regex patterns, named capture groups, common traps, and debugging techniques for daily use.