DevPad

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Developer guides, tutorials, and tips for working with JSON, JWTs, and other developer tools.

10 posts

sql · formatting · database

SQL Formatter: How to Format and Read SQL Queries

Learn how to format SQL queries for readability, common formatting rules, dialect differences, and how to use SQL formatters effectively.

timestamps · unix · date-time

Timestamp Converter: Working with Unix and Human-Readable Dates

Understand Unix timestamps, how to convert between timestamp formats, common mistakes, and working with dates in JavaScript, Python, and command line.

json · yaml · configuration

JSON to YAML Converter: When and How to Convert

Understand the differences between JSON and YAML, when to use each format, and how to convert between them with practical examples.

hashing · sha256 · security

Hash Generator Guide: SHA256, MD5, and Cryptographic Hashing

Understanding cryptographic hash functions — SHA256, SHA512, MD5 — when to use each, and how to generate hashes in JavaScript, Python, and command line.

url-encoding · web · developer-tools

URL Encoding Explained: How Percent-Encoding Works

Understand URL encoding (percent-encoding), when to encode and decode URLs, and how to handle special characters in query strings and paths.

uuid · generators · developer-tools

UUID Generator Guide: Understanding Universally Unique Identifiers

What UUIDs are, the different versions (v1, v4, v7), when to use each, and how to generate UUIDs in JavaScript, Python, and other languages.

regex · regular-expressions · testing

How to Test Regex Patterns: A Developer Guide

Learn how to test regular expressions effectively, match groups, flags, and common patterns. Includes JavaScript, Python, and online testing tools.

base64 · encoding · developer-tools

Base64 Encoder and Decoder Explained

Learn how Base64 encoding works, why it exists, and how to encode and decode Base64 strings in JavaScript, Python, and command line.

json · formatting · api

How to Format JSON: A Complete Developer Guide

Learn how to format, validate, and minify JSON data. Covers syntax rules, common errors, and best practices for working with JSON in APIs and configuration files.

jwt · authentication · security

What Is a JWT? Understanding JSON Web Tokens

A complete guide to JSON Web Tokens (JWT) — how they work, their structure, common use cases, and how to decode and inspect JWT tokens for debugging.