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Tools and articles

01

Articles

Introduction

How to Convert HEX, RGB, and HSL Colors and Check Contrast

How to Read a QR Code from an Image and Check the URL Before Opening It

How to Count Characters and Clean Text for Docs, Forms, and Code Snippets

Use Case

Use a SQL formatter before review to make queries easier to read

Visualize GitHub Actions needs dependencies with Mermaid

Common pitfalls when drawing infrastructure diagrams with Mermaid

Development Story

The 'Nobody Updated the Architecture Diagram' Problem

Losing My Mind in YAML Hell: Why I Built a CI/CD Visualizer

Stop Crying Over JOINs: Behind the Visual SQL Builder

02

Development & DevOps

GitHub Actions Visualizer SQL Formatter Visual SQL Builder SQL → ER Diagram Curl Converter Chmod Calculator Cron Editor & Parser Infrastructure Diagram Builder

03

Data Conversion & Schemas

JSON Formatter JSON → TypeScript JSON → Zod JSON → OpenAPI JSON ⇔ YAML CSV ⇔ JSON Converter

04

Security & Cryptography

Base64 / 58 / 32 JWT Tool Hash & HMAC Generator JWKS Generator UUID Generator

05

Text & Code Helpers

Markdown Table Generator Text & Code Suite Regex Tester Diff Viewer

06

URL, QR & Network

URL Encode / Decode URL Params → JSON QR Generator QR Reader

07

Design & UI

Color Utility Favicon Generator

08

Date & Time

Time Zone Converter Time Units UNIX Timestamp Converter

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