About
Learn more about ToolTunnel.
Built for engineers
Fast, practical online tools for developers and engineers. Format, validate, decode, analyze, convert, calculate, and work with technical data directly in your browser.
Our goal
The goal is simple: make common engineering tasks faster, easier and more accessible without unnecessary complexity.
Privacy first
Whenever possible, tools process data directly in your browser. We aim to avoid sending sensitive engineering data to a server when server-side processing isn't necessary.