Developer Guides & Tutorials

Practical tutorials to help you work faster with developer tools. From JSON formatting to timestamp conversion.

Tutorial · 8 min read

How to Format and Validate JSON Online in 2026

Learn the fastest ways to format, validate, and debug JSON data in your browser. Includes code examples in JavaScript, Python, and tips for handling large JSON files.

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Guide · 10 min read

Base64 Encode/Decode in JavaScript: The Complete Guide

Everything you need to know about Base64 encoding in JavaScript. Covers btoa/atob, Unicode handling, Node.js buffers, and URL-safe Base64 variants.

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Reference · 7 min read

How to Convert Unix Timestamps to Human-Readable Dates

Understand Unix timestamps, how to convert them across JavaScript, Python, PHP, and Go, handle timezones correctly, and common pitfalls with milliseconds vs seconds.

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