Yes, there are some free applet development platforms that can help you create and deploy applets. The following are some common free applet development platforms:

WeChat developer tool: The official developer tool provided by WeChat is a free applet development platform. You can use it to create, debug and publish WeChat applets. This tool supports a variety of development languages, including JavaScript, TypeScript and so on.

Alipay open platform: If you want to develop Alipay applets, Alipay also provides a free open platform for developers to use. You can register your account on Alipay's open platform and use the development tools they provide.

Baidu applet developer tool: The applet developer tool provided by Baidu is also a free platform for creating and debugging Baidu applets.

ByteDance applet developer platform: If you are interested in developing Tik Tok applets and today's headline applets, ByteDance also provides a corresponding free developer platform.

Please note that although these platforms are free, you may be involved in some other expenses when using applets, such as server hosting and domain name registration. In addition, there may be some differences between the free version and the paid version. When choosing a platform, please check the corresponding documents and policies to ensure that it meets your needs.

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