Why AyukTools processes files in the browser

A QR pattern, a PDF page, or a photo resize is math on pixels and bytes. Modern browsers can do that math in a tab. Sending the original to a server would only add a queue, an account, and a copy of a document you may not want sitting on someone else’s disk.

AyukTools is built around that idea. Generate a QR, scan one, convert PDF pages, merge images into a PDF, convert or compress a picture, or crop a video clip: the original stays on the device unless you download a new file yourself. Closing the tab clears the working copy.

An internet speed test cannot stay fully local. Measuring download, upload, ping, and jitter means talking to a machine on the public internet. This site uses Cloudflare for that burst. The numbers are a snapshot of a route, not a file you uploaded.

Optional AI on the vertical clipper is the other exception. If you paste a Gemini key and a public YouTube URL for a video you published, that request goes to Google so the model can suggest times and captions. AyukTools does not keep the key or a history of analyses.

School forms, shop menus, and invoices often contain names, addresses, or prices. A tool that asks you to upload first treats that as normal. A tool that runs in the tab treats it as avoidable. You still choose what to download and where to send it next.

Local processing is not magic privacy. A screenshot, a shared computer, or an extension can still see the tab. It does mean this site does not need a file database to do the job, which is the promise on the About and Privacy pages.

Each live tool has a short privacy note under the widget. Read that before you pick a sensitive file. If the page says the work stays in the browser, it should not ask you to create an account to finish.

If a future tool must talk to a third party, the page should say so in the same place. The speed test and the optional Gemini step are the current examples. We do not hide those hops behind a generic “upload” button.