How EverythingDeck Processes Files in Your Browser

September 12, 2026Updated September 13, 20265 minutes

“Runs in your browser” should be something you can check, not a slogan. Here is what happens when you use a file tool on EverythingDeck, and where the limits of that claim are.

Choosing a file does not upload it

When you select a photo or PDF, the browser gives the page access to that file for the current session. The tool code reads it in the browser and creates a new result there. The Image Compressor decodes and re-encodes an image. Merge PDF reads pages from selected PDFs and writes a new PDF. The CSV to JSON converter parses pasted text locally.

Some tasks load extra JavaScript after you open a tool. That network request downloads code to your browser; it is not an upload of your selected document. Some image and PDF work uses browser workers so the page stays responsive. The output is offered as a download when you choose to save it.

What the site does store

Favorites, recently used tool IDs, and your color theme use browser storage so the interface remembers them. Those entries name tools, not the files or text you processed. The offline service worker can cache static pages and scripts, but it is not designed to cache selected documents or generated results. Clearing this site’s browser data removes those local preferences and caches.

The hosting provider still receives ordinary page and asset requests. EverythingDeck uses an AdSense account meta tag and ads.txt for site verification, but does not load the advertising script while visible ads are disabled. Page and asset requests do not contain the image, PDF, or pasted text you give a tool. See the Privacy page for the current disclosure.

Check the network yourself

Open your browser’s developer tools and select the Network panel. Clear the log, then choose a small test file in a tool and run an operation. You may see JavaScript assets and page resources. Look for a request carrying your file bytes or a form upload to EverythingDeck. The tool should not make one.

This check covers the site in that browser session. A browser extension, operating-system share action, or external link is separate from the tool’s own processing. If you find an unexpected upload from the site, send the route and a description to support@everythingdeck.com.