# How Can I add dear flip library In buider.io
**URL:** https://forum.builder.io/t/how-can-i-add-dear-flip-library-in-buider-io/3658
**Category:** Technical Questions
**Tags:** nextjs
**Created:** [May 31, 2023, 11:41am UTC](https://forum.builder.io/t/how-can-i-add-dear-flip-library-in-buider-io/3658 "2023-05-31T11:41:47Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@RayLow](https://forum.builder.io/u/RayLow)
#### Post date: [May 31, 2023, 11:41am UTC](https://forum.builder.io/t/how-can-i-add-dear-flip-library-in-buider-io/3658/1 "2023-05-31T11:41:47Z")
Hey I want to add external library i.e dear flip in [buider.io](http://buider.io) which have script and files which need to be linked in it also I want it on button click pdf urls to send dynamically
Please suggest way to do That
Thanks
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### Author:  [@manish-sharma](https://forum.builder.io/u/manish-sharma)
#### Post date: [May 31, 2023, 11:52am UTC](https://forum.builder.io/t/how-can-i-add-dear-flip-library-in-buider-io/3658/2 "2023-05-31T11:52:42Z")
Hi @RayLow,
For adding a 3rd party library, the builder has a few options, either you can use the builder’s custom code block to load the external library or register the component as a custom component or pass it using a context object
> **[Adding custom code in the Builder.io visual editor - Builder.io](https://www.builder.io/c/docs/guides/custom-code#custom-javascript)**
>
> Add custom JavaScript and CSS to your Builder content. Learn how to access browser events, state properties and add custom CSS to your pages.
> **[Intro to Integrating Custom Components - Builder.io](https://www.builder.io/c/docs/custom-components-intro?_host=www.builder.io)**
>
> Drag and drop with your components, right within your existing site or app. Build and optimize digital experiences for any tech stack, visually.
> **[Custom Data and Context - Builder.io](https://www.builder.io/c/docs/custom-actions)**
>
> Set up custom actions
> **[builder/packages/react at main · BuilderIO/builder - Passing data and functions down](https://github.com/BuilderIO/builder/tree/main/packages/react#passing-data-and-functions-down)**
>
> main/packages/react