Alternatives: joi, yup, io-ts
Joi follows a more traditional and declarative API design, where you define validation schemas using a fluent interface. Ow, on the other hand, follows a more modern and expressive API design, leveraging template literals and chaining methods for defining validation rules.
Both Joi and Ow provide a wide range of validation capabilities. Joi offers a comprehensive set of validation rules and supports complex schema definitions, making it suitable for handling complex validation scenarios. Ow, on the other hand, focuses on providing a simpler and more lightweight API, covering most common validation needs.
Ow is known for its excellent performance due to its lightweight design and optimized codebase. Joi, while still performant, may have some overhead due to its extensive feature set and flexibility. The performance difference may be more noticeable in high-throughput scenarios or when dealing with large validation payloads.
Joi has been around for a longer time and has a more mature ecosystem, which translates to better documentation, more community resources, and a larger number of integrations with other libraries and frameworks. Ow, being a newer library, may have a smaller community and fewer resources available, but it offers a more modern and intuitive API.