developer tools

Developer Tools guides and tools.

How to Format and Validate JSON Online (Step-by-Step Guide)

To format and validate json online, open the free JSON Formatter on pdfseotools.com, paste your code or data into the input box (or upload a file where supported), then run the tool and download or copy the result. It takes under a minute, works on mobile and desktop, and needs no sign-up.

What Is a UUID and When Should You Use One?

A UUID is a 128-bit unique identifier used for database keys, API resources and file names. Developer tools format, validate and convert data so you can debug APIs and configuration files faster. This guide explains the basics in simple words, with tables, examples and free tools you can try right a

How to Use Fake Test Data Safely in Development

To use fake test data safely in development, open the free Fake Name Generator on pdfseotools.com, choose the options you want, such as country or type, then run the tool and download or copy the result. It takes under a minute, works on mobile and desktop, and needs no sign-up.