About

DevsBox is a focused collection of browser-based tools for engineers who need to format, decode, hash, validate, or compare small chunks of code and data many times a day. Each tool is built around a single workflow — paste in, transform, copy out — so the page does not get in the way when you are mid-task.

Every transformation runs locally in the browser using standard Web APIs. Pasted JSON, JWTs, environment files, regex patterns, hash inputs, and SQL snippets stay on your machine; nothing is sent to a server, logged, or stored remotely. That matters when the text you are debugging includes API keys, internal identifiers, customer payloads, or credentials you would not want to ship through a third-party SaaS just to pretty-print a response.

The current toolset includes a JSON formatter and validator with sibling routes for common conversions (CSV, YAML, XML, TypeScript), a JWT decoder, base64 and URL encoder/decoders, MD5 and SHA-256 hashers, a regex tester, a UUID generator, an XML and SQL formatter, a markdown editor, and a diff checker. Each tool ships with realistic sample inputs, copy-link state, and short reference notes so you can hand a teammate a URL that reproduces what you just saw.

The site is maintained as part of a small portfolio of single-purpose utility sites. It is funded by display advertising served through Google AdSense; revenue keeps the tools free, fast, and free of upsells. If a tool you rely on is missing or behaves unexpectedly, send a short note to hhammoud@inovisum.com and it will be triaged on the next maintenance pass.