OOnDevice
117 tools

The promise

Your files never leave
your device.

Every tool on this site — including the AI ones — runs on your computer. Files you drop, text you paste, and outputs we generate stay on your machine. Close the tab and it is gone. We have no copy.

What if my wifi is shaky?

The first time you visit Toolbox, the tools save themselves on your computer. After that, the site works on bad wifi or no wifi at all. Drop a file, get a result — internet is not part of the loop. (AI tools need internet once to download the AI model. After that, they work offline too.)

Three things that are true

  1. 01

    We do not upload your files. Processing happens on your computer, in your own browser tab. Our servers never see them.

  2. 02

    AI models run on your machine. The model downloads once, saves on your computer, and answers locally. Your prompts are not sent to OpenAI, Anthropic, or anyone else.

  3. 03

    There is no account wall. You do not need to sign up to use any tool. Pro is optional.

Prove it yourself.

Turn on airplane mode. Open any tool. Drop a file. It still works. The network is not part of the loop.

What we do collect, site-wide

To keep the site running and understand which tools matter, we collect a small amount of data — never linked to any file you process.

Anonymous usage events (PostHog)
Which tool was opened, how long it took, whether it worked. No cookies, no IP retention, no account link. You can block it with any ad blocker — the tools will still work.
Ads on free tool pages (Google AdSense)
AdSense funds the free tier. It is standard display advertising and follows Google’s own policies. Pro removes ads entirely. If you would rather not see them, upgrade or use uBlock Origin — we do not mind.
Your account email (only if you sign up)
Handled by Clerk. Used to sign you in and identify your Pro subscription. Billing is handled by Stripe — we never see card numbers.

What we do not do

  • — We do not sell your data. There is no data about your files to sell.
  • — We do not store your files, prompts, or outputs on any server.
  • — We do not send analytics events tied to your account or email.
  • — We do not fingerprint your browser.

How it works (for the curious)

Every tool runs as JavaScript in your browser tab. Heavy work uses WebAssembly for speed; PDFs use pdf-lib; AI tools use WebGPU when your device has it. None of that sends your files anywhere — the browser tab is the entire tool. If you are comfortable with devtools, open the Network panel and watch: no upload, no file POST.

Questions?

Email hello@ondevice.tools. Or head back to the tools — they are waiting.