About Tool Empire

Tool Empire is a small collection of free, browser-based utilities built for developers, writers, and anyone who needs a quick way to format, convert, or generate data.

Every tool runs entirely in your browser using JavaScript. We never upload your input to a server — when you close the tab, your data is gone. This makes the tools private, fast, and usable without an internet connection once the page has loaded.

What you'll find here

• JSON formatter and validator
• Base64 encoder and decoder
• UUID generator (v1 and v4)
• Hex / RGB color converter
• Unix timestamp converter
• Markdown to HTML converter
• Case converter (camelCase, snake_case, kebab-case, etc.)
• Regex tester
• CSS unit converter (px, rem, em, pt, vw, vh)

What you won't find

We do not provide financial, legal, or medical advice. Tools that compute numerical estimates are clearly marked and should not be relied on for consequential decisions. We're not responsible for decisions you make based on the output of these tools.

Feedback or bug reports?

We add new tools regularly. If you'd like to suggest one or report a problem, see the contact page.