DevDex

Overview

Tools menu

Developer Toolkit

Everything you need in one place. Processes entirely in your browser using JavaScript.No project setup required.

Tool guide

Choose the right tool for the task

DevDex collects small tools used when building and maintaining applications. Format an API response, inspect a token payload, convert a timestamp, or prepare a list without setting up a separate project. Each tool has its own page, so you can bookmark the task you use most often.

Text transformations and image editing run in the browser. Choose a formatter when you want to change presentation, an encoder when a transport format requires it, and a decoder when you need to inspect an existing value. These operations have different purposes: encoding a value does not keep it secret.

How to use it

  1. Choose a tool from the menu or the cards above.
  2. Start with a short sample, select the required options and inspect the result.
  3. Copy or download the output, then validate it in the application where it will be used.

Example and result

API response → JSON Formatter
Query parameter → URL Decoder
Unix time → Timestamp Converter

An API response can be formatted as JSON, a value from it can be decoded with the URL tool, and its timestamp can be inspected separately. Keep each step small enough to check.

What to check

  • A formatter is not an application validator. It cannot confirm a database schema, a token signature, or whether a cron job actually ran.
  • Use fabricated examples for troubleshooting. Browser extensions, clipboard managers and shared devices are outside the tool’s processing boundary.

Common questions

Do I need to connect a database or create an account?

No database connection is needed for these tools. They transform the values you provide; they do not execute SQL or manage your application accounts.