Apps similar to Spark Framework include Flask Framework, which is free and open source. Other options are Sinatra, Javalin and Roll. In total there are four Web Frameworks like Spark Framework for Mac, Windows, Linux, the web and self-hosting.
Flask is a lightweight web application framework written in Python and based on the Werkzeug WSGI toolkit and Jinja2 template engine. There is no database abstraction layer, form validation, or any other components where third-party libraries already exist to provide common...
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Sinatra is a free and open source software web application library and domain-specific language written in Ruby. It is an alternative to other Ruby web application frameworks such as Ruby on Rails, Merb, Nitro, Camping, and Rango. It is dependent on the Rack web server interface.
Javalin - A lightweight Java and Kotlin web framework. Create REST APIs in Java or Kotlin easily.
Async, simple, fast: pick three! Roll is a pico framework with performances and aesthetic in mind. - pyrates/roll
