Privacy
Last updated: 2026-07-29
Your data stays with you
Every calculator, decoder and file converter on this site runs entirely in your browser. Values you type and files you open are processed locally by JavaScript and are never transmitted to us or to any server. There are no upload endpoints, no accounts and no databases behind this site — it is served as static files.
What is stored locally
Two items of localStorage: your dark/light theme preference and your language choice. Both stay in your browser and are not readable by us. No other client-side storage is used by the site itself.
Analytics
When analytics is enabled we use Cloudflare Web Analytics, which counts page views without cookies, without localStorage and without building a profile that follows you across sites. It records the page, the referring site and coarse device and country information, in aggregate only — we cannot identify you from it, and nothing you type into a calculator is ever part of it. Separately, when you actually use a tool — type into it or press a button — your browser sends us just that tool's name, once: no values, no identifier, nothing that could say who used it. This is how we learn which tools are worth maintaining.
Advertising
The site is ad-supported. When advertising is active, we prefer EthicalAds, a network that serves contextual ads without cookies, tracking or personal-data collection. If Google AdSense units are ever enabled, a consent dialog compliant with Google's requirements will be shown first, and Google's own privacy policy applies. Ad scripts and the analytics beacon are the only third-party requests this site makes.
Contact
Privacy questions: contact@testbench.tools