Tips, Tricks & Guides

Practical tips and how-to guides to help you get the most out of everyday tools — from formatting and encoding to productivity shortcuts.

Fundamentals2026-06-17·8 min read

What is JWT? JSON Web Tokens Explained

Understand JWT from first principles — structure, signing algorithms, when to use them, and common security pitfalls every developer should know.

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Fundamentals2026-06-16·6 min read

What is Base64 Encoding? A Complete Guide

Learn how Base64 encoding works, when to use it, the 33% size overhead, and the difference between standard Base64 and the URL-safe Base64URL variant.

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Tool Guide2026-06-15·5 min read

How to Use the MyBatis Log Formatter

Turn split Preparing / Parameters log lines into a single runnable SQL statement. Covers all Java types, multiple statements, and Logback / Log4j log formats.

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Tool Guide2026-06-14·5 min read

How to Format SQL Queries Online

Beautify and minify SQL queries online with dialect support for MySQL, PostgreSQL, T-SQL and more. Covers keyword casing options and formatting best practices.

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Tool Guide2026-06-13·7 min read

How to Decode and Inspect JWT Tokens

Learn what JWT tokens contain, how to decode the header and payload, how to check expiry, and how to verify the signature — all in your browser.

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Tool Guide2026-06-12·5 min read

How to Visualize JSON Data as a Table

Convert JSON arrays and objects into a sortable, interactive table. Covers nested data, column sorting, reordering, and hiding — all in your browser.

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Troubleshooting2026-06-10·6 min read

How to Fix Invalid JSON

Identify and repair the most common JSON syntax errors — trailing commas, single quotes, unquoted keys, wrong boolean casing, and missing brackets.

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Tool Guide2026-06-05·7 min read

How to Use the Base64 Encoder & Decoder — A Complete Guide

Learn how to encode and decode Base64 online — text strings, files, and images. Covers charset selection, URL-safe format, JWT decoding, and data-URI generation.

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Tool Guide2026-06-04·6 min read