Privacy Policy

This policy describes what happens to your data when you use Micro Tool Yard. The short version: the files and text you put into a tool are processed entirely on your own device and are never sent to us. The rest of this page explains exactly what is and isn't true of that statement, including the handful of exceptions.

Your files and input never leave your device

Every file-processing and text-processing tool on this site — the PDF tools, the image tools, the diff and JSON tools, and the calculators — runs entirely in your browser using JavaScript and WebAssembly libraries loaded from this site. When you drop in a file or paste in text, it is read into your browser's memory (and, for larger jobs, handed to a Web Worker running locally in your browser), processed there, and the result is handed back to you for download or copying. At no point is that file or text transmitted to any server, including ours. We have no server-side component that could receive it even if we wanted to.

You can verify this yourself: open your browser's network inspector (DevTools → Network tab) while using any tool and watch for outgoing requests. Aside from the one exception described below, you'll see none while a tool is running.

The one exception: currency exchange rates

The Currency Converter calculator needs live exchange rates to be useful, and there is no way to compute those locally. To get them, that one tool makes a single, anonymous request to a public exchange-rate API (open.er-api.com) to fetch the day's rates. That request carries no information about you or your input — it's a plain GET request for a public, static JSON snapshot, cached for the rest of your session so it isn't repeated. No other tool on this site makes any network request during normal operation.

What's stored locally in your browser

Some tools save small amounts of state to your browser's own local storage (IndexedDB and localStorage) so your preferences and recent activity persist across visits:

• Preferences — your dark/light theme choice and sidebar collapsed state.
• Tool history — an optional local log of recent conversions (e.g. filenames and timestamps, never the file contents themselves) that some tools display so you can see what you've recently processed. This is cleared automatically after the newest 50 entries, and you can wipe it entirely at any time via the "Clear all local data" action in that tool's history panel.

None of this data is ever transmitted anywhere — it lives only in your browser's local storage on your own device, the same way a browser bookmark does, and is removed if you clear your browser's site data.

Advertising and analytics

This site may show ads served by Google AdSense and uses Cloudflare Web Analytics for aggregate, non-invasive traffic measurement (page views and load performance — no cross-site tracking, no fingerprinting). Google's advertising products can set cookies and use similar technologies for ad personalization and measurement, subject to your consent choice where required by law (see the consent banner shown to visitors in regions where it applies). Full detail on exactly which cookies are set and by whom is in theCookies page, kept separate from this policy so it can be updated independently as ad-vendor specifics change.

We do not run our own tracking scripts beyond the Cloudflare Web Analytics beacon, and we do not sell or share any data, because we do not collect any data about your tool usage to sell or share in the first place.

Changes to this policy

If this policy changes — for example, if a future tool needs a different network exception — this page will be updated and the "last updated" date above will change accordingly. Material changes affecting how your data is handled will always favor the local-first architecture described above; that's the core design constraint of this site, not an incidental detail.

Questions

See the About page for more on why this site is built this way, or theTerms of Use for the legal terms governing your use of the tools.