Privacy, in short.
The tools do not send your data anywhere. There are no analytics and no cookies, and nothing is loaded from other websites.
Last updated 7 October 2026.
The tools
Everything you paste, type or open in a tool is processed in your browser, on your own device. FactoKit has no server that receives it, no accounts and no database.
Some tools keep your work on your device so that you can come back to it. This stays in your browser and goes nowhere:
- The PFMEA, control plan, dimensional report and 8D report save the project you are working on in your browser’s storage (IndexedDB).
- The value stream map, the A3 report and the 5S / LPA audits save the document you are working on in your browser’s storage (IndexedDB), apart from the PFMEA project.
- Cpk and the control charts pass the data you pasted from one page to the other through the browser’s session storage, until you close the tab.
- The live monitoring of the control charts can remember the file or folder you chose, so that you can resume with one click.
- FactoKit Probe keeps the pairing with the bridge on your computer in the browser’s session storage, so that a reload of the tab does not ask for a new code, until you close the tab.
You can remove all of it by clearing this site’s data in your browser. The offline files store nothing.
The contact form
If you use the form on the About page, what you type (your name if you give one, your email address, the topic, the tool if you name one, and the message) is sent by email to the people who run FactoKit, through Resend, an email delivery service. It is used to read and answer your message.
- Nothing is stored on this site. The message is sent and forgotten here; it exists in an inbox, and is kept there as long as it is needed to answer you.
- To limit abuse, the form counts messages per visitor address for a few minutes. The address is kept only as a scrambled value in the memory of the running function, never written down.
- Use the form only if you are comfortable with that. Nothing else on the site needs it.
The website host
Like any website, FactoKit is delivered by a hosting provider. To deliver the pages the provider processes requests, which include your IP address and the address you asked for, and it may keep technical logs for a short time. FactoKit adds no tracking to this and does not use the logs.
FactoKit Probe
The Probe bridge runs on your computer. It connects to the OPC UA servers you choose, and its passwords and keys stay on your computer. Nothing it reads is sent to FactoKit.
Your choices
You can use every tool without the contact form, offline if you like (each tool has a downloadable offline version), and clear the browser storage of this site at any time. If you sent a message and want it deleted, say so in a new message through the form.