# Mollie.js Mollie’s browser-side JavaScript library is called **Mollie.js**. You can use it to offer a more deeply embedded checkout experience. See the guides on [Mollie Components](https://docs.mollie.com/docs/mollie-components) and on [building your own checkout](https://docs.mollie.com/docs/build-your-own-checkout) for more information. The `Mollie` object is used to initialize Mollie Components. `Component` objects each reference an embeddable checkout component, such as a card number field or a card expiry date field. Mollie also offers [Ready-to-go libraries](https://docs.mollie.com/docs/libraries#/) that you can use to integrate with your platform that cover everything from `JS` and `PHP` to `.NET` and `Python`. We also have a selection of pre-built integrations that offer an out-of-the-box solution for common platforms.