How to make a website work offline?

Question

Web development

Tell me, what technologies are there now so that a website / web application, once opened online in a browser, can be used offline (without a network connection) as a desktop application? With a link on the desktop, etc. For the most unskilled users in IT. Without communication with the server during normal operation, but with the possibility of updating the version ideally. It's a simple calculator.

Answer 1

For an offline site, there is PWA, Service Workers, IndexedDB
https://developers.google.com/web/progressive-web-apps/
https://developer.mozilla.org/en/docs/Web/API/Serv...
https://developer.mozilla.org/en/docs/IndexedDB

Answer 2

It's a simple calculator.

excel file make

Answer 3

Make a desktop app.

Answer 4

here is an awesome example and much more calculator https://studio.psdetch.com/