About Veojson

Veojson is a collection of 44 fast, focused micro-tools for developers, IT admins and technical founders — JSON and JWT utilities, network calculators, security checks, and business calculators.

Why we built it

Most everyday developer tasks need a single answer, not a heavy app. Each Veojson tool does one job, loads instantly, and explains the concept behind the result with reference tables, worked examples and FAQs.

Your data stays in your browser

Formatters, decoders and calculators run locally in your browser. Tokens, JSON payloads and other inputs you paste are not sent to our servers. Only tools that must reach the network — such as the security headers checker or DNS lookup — make a request, and only for the URL or domain you enter.

Free, in four languages

Every tool is free to use without an account and is available in English, Portuguese (Brazil), Spanish and French. A Chrome extension puts the whole toolkit one shortcut away.