About
About ToolStack
Why ToolStack exists and how we build practical, privacy-friendly online tools.
Useful answers without the clutter
ToolStack is a growing collection of focused calculators and browser utilities for everyday work. Our goal is to make common tasks fast, understandable, and accessible on mobile and desktop.
Private by design
Calculations, text transformations, developer utilities, and image processing run in your browser whenever possible. Tool inputs are not stored in our database. Signed-in activity records only which tool was opened—not the values, text, tokens, or files used.
Built for clarity
Every published tool is expected to include validation, understandable errors, an explanation, examples, frequently asked questions, and related tools. We use one shared architecture so new tools can be added without duplicating page or SEO code.