What we build
Handy Tool Lab is an independent directory of calculators, converters, image and PDF utilities, text tools, and developer helpers. Each page is designed around a specific task, clear inputs, and an understandable result.
Browser-first processing
Many tools process text, images, and documents entirely in your browser. This reduces unnecessary uploads and keeps the core service inexpensive. A tool page explains when content is stored locally or when a limitation applies.
Accuracy and corrections
We test formulas and common workflows, but rates, standards, browser behavior, and marketplace rules can change. Important results should be checked against an authoritative source. We welcome specific correction reports that include the tool, input, expected result, and supporting source.
How the site may be funded
The site may later be supported by clearly identified advertising. Advertising will not change calculator formulas or permit advertisers to access the files you process locally. Before advertising or analytics is enabled, this site will update its disclosures and deploy any consent mechanism required by applicable law.