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https://github.com/BuilderIO/partytown

Relocate resource intensive third-party scripts off of the main thread and into a web worker. 🎉
https://github.com/BuilderIO/partytown

3rd-party 3rdparty analytics core-web-vitals dom javascript lighthouse lighthouse-score performance web-worker webworker

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Relocate resource intensive third-party scripts off of the main thread and into a web worker. 🎉

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README 

        
# Partytown 🎉



Partytown github fit 2x



- [Introducing Partytown: Run Third-Party Scripts From a Web Worker](https://dev.to/adamdbradley/introducing-partytown-run-third-party-scripts-from-a-web-worker-2cnp)

- [How Partytown's Sync Communication Works](https://dev.to/adamdbradley/how-partytown-s-sync-communication-works-4244)

- [How we cut 99% of our JavaScript with Qwik + Partytown](https://www.builder.io/blog/how-we-cut-99-percent-js-with-qwik-and-partytown)

- [Partytown is now in Beta](https://www.builder.io/blog/partytown-is-now-in-beta)



> A fun location for your third-party scripts to hang out



Partytown is a lazy-loaded library to help relocate resource intensive scripts into a [web worker](https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API), and off of the [main thread](https://developer.mozilla.org/en-US/docs/Glossary/Main_thread). Its goal is to help speed up sites by dedicating the main thread to your code, and offloading third-party scripts to a web worker.



> Note: Partytown is still in beta and not guaranteed to work in every scenario. Please see our [FAQ](https://partytown.builder.io/faq) and [Trade-Off](https://partytown.builder.io/trade-offs) sections for more info.



The philosophy is that the main thread should be dedicated to your code, and any scripts that are not required to be in the [critical path](https://developers.google.com/web/fundamentals/performance/critical-rendering-path) should be moved to a web worker. Main thread performance is, without question, more important than web worker thread performance.



- [Getting Started](https://partytown.builder.io/getting-started)

- [Integrations](https://partytown.builder.io/integrations)

- [Configuration](https://partytown.builder.io/configuration)

- [Releases](https://github.com/BuilderIO/partytown/releases)

- [FAQs](https://partytown.builder.io/faq)



![Without Partytown and With Partytown: Your code and third-party code compete for main thread resources](https://user-images.githubusercontent.com/452425/152393346-6f721a4f-3f66-410a-8878-a2b49e24307f.png)



## Community



- [@QwikDev](https://twitter.com/QwikDev)

- [@Builderio](https://twitter.com/builderio)

- [Local Development](https://github.com/BuilderIO/partytown/blob/main/CONTRIBUTING.md#local-development)

- [For Plugin Authors / Developers](https://github.com/BuilderIO/partytown/blob/main/CONTRIBUTING.md#plugin-authors-developers)



## Related Projects



- [Qwik](https://github.com/BuilderIO/qwik): An open-source framework designed for best possible time to interactive, by focusing on resumability of server-side-rendering of HTML, and fine-grained lazy-loading of code.

- [Mitosis](https://github.com/BuilderIO/mitosis): Write components once, run everywhere. Compiles to Vue, React, Solid, Angular, Svelte, and more.

- [Builder](https://github.com/BuilderIO/builder): Drag and drop page builder and CMS for React, Vue, Angular, and more.











   

      

         

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