Service Worker Generator

Generate a basic service worker with precaching and a caching strategy, plus registration code.

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Generate a basic service worker (sw.js) with precaching and a caching strategy, plus the registration snippet.

Cache nameStrategy

Precache URLs

sw.js

const CACHE = "app-v1";
const ASSETS = [
  "/",
  "/index.html",
  "/styles.css",
  "/app.js"
];

self.addEventListener("install", (event) => {
  event.waitUntil(caches.open(CACHE).then((c) => c.addAll(ASSETS)));
  self.skipWaiting();
});

self.addEventListener("activate", (event) => {
  event.waitUntil(
    caches.keys().then((keys) =>
      Promise.all(keys.filter((k) => k !== CACHE).map((k) => caches.delete(k)))
    )
  );
  self.clients.claim();
});

self.addEventListener("fetch", (event) => {
  if (event.request.method !== "GET") return;
  event.respondWith(
    caches.match(event.request).then((cached) => cached || fetch(event.request))
  );
});

if ("serviceWorker" in navigator) {
  window.addEventListener("load", () => navigator.serviceWorker.register("/sw.js"));
}

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Disclaimer: This tool is for general informational and estimation purposes only and is not professional financial, tax, accounting or legal advice. All figures are estimates — verify with a qualified professional before making decisions. Read the full disclaimer.

About Service Worker Generator

Service Worker Generator is a free popular platforms tool that lets you build a correct config in clicks instead of digging through docs — no guesswork, no docs. Copy the config and paste it straight into your platform of choice. It runs entirely in your browser with no sign-up and no installs, so your data stays private.

How to use Service Worker Generator

1Open Service Worker Generator — it loads instantly and runs entirely in your browser.
2Fill in the fields with your own values; the output updates live as you type.
3Review the generated config in the preview area.
4Copy the config and paste it straight into your platform of choice.

Why use Service Worker Generator?

✓Generates a valid config in seconds — no copy-pasting from docs
✓100% client-side: your inputs never leave your browser
✓Free and unlimited — no account, no trial, no credit card
✓Works on desktop and mobile; copy or download the config instantly

Frequently asked questions

Is Service Worker Generator free?+

Yes. Service Worker Generator is completely free with no account, no trial and no usage limits. ToolJolt is supported by unobtrusive ads, not paywalls.

Where do I paste the output from Service Worker Generator?+

Click Copy, then paste the config into your platform of choice. Each tool's preview shows exactly what to add and where, so you can drop it in and save without reading the docs.

Is my data private?+

Completely. Service Worker Generator runs 100% in your browser (client-side). Nothing you type is uploaded to a server, so your data stays on your device.

Do I need to sign up or install anything?+

No. There's nothing to install and no sign-up — just open the page and start. It works on desktop and mobile.

Can I use the output commercially?+

Yes. The configuration, code or files you generate are yours to use in personal and commercial projects without attribution.

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