Blog

A full overview of all 106 DevKit tools across 8 categories — formatters, encoders, generators, cheatsheets, AI/ML, and Web3.

Complete guide to JWT structure, how to decode the header and payload, standard claims, security best practices, and free in-browser tools.

How Base64 works, when to use it, encode/decode in JavaScript, Node.js, Python, and the command line.

SQL formatting rules, best practices for readable queries, CTE examples, and a free browser-based SQL formatter.

8 AI/ML tools covering the full development pipeline — token counter, dataset cleaner, confusion matrix, outlier detection, and more.

Common JSON syntax errors, how to validate JSON in JavaScript, Python, and the CLI, and JSON Schema validation explained.

25 cron expression examples with syntax refresher and platform differences for Linux crontab, GitHub Actions, AWS EventBridge, and Kubernetes.

Email regex patterns, edge cases, HTML5 vs regex validation, and code examples in JavaScript, Python, and Go.

MD5 vs SHA-256 head-to-head: output length, speed, collision resistance, security status, and when to use each.

Full decodeJwt() function with Base64URL decoding, expiration checking, atob vs Buffer, and TypeScript typed version — no libraries needed.

Percent-encoding explained: encodeURI vs encodeURIComponent with tables, query string pitfalls, and Python/Go/curl equivalents.

YAML vs JSON syntax side by side, 6 key differences, performance, and use cases for APIs, CI/CD, Kubernetes, and Ansible.

crypto.randomUUID(), UUID v4 structure, browser support polyfill, Node.js uuid package, and TypeScript typed UUID functions.

Unix timestamp conversion in JavaScript, Python, PostgreSQL, MySQL. Seconds vs milliseconds, ISO 8601 format, and timezone handling.

Reading unified diff format, git diff explained, command-line diff tools, and when to use an online diff checker.