JavaScript libraries for user onboarding provide a cost-effective and agile solution for tech-savvy teams capable of coding, as they allow for the creation of customizable product tours without the need for expensive third-party platforms. These libraries, such as Intro.js, Shepherd.js, and Bootstrap Tour, offer various features and compatibility with different frameworks, enabling developers to design tailored onboarding experiences. However, for those lacking coding expertise or seeking more robust solutions, no-code platforms like Chameleon offer an alternative with advanced customization and integration options. While JavaScript libraries are typically open-source and free, the time and skill required to implement them may lead some to prefer no-code tools that simplify the process and provide additional functionalities.