Opa icon

Opa icon

Opa

Desktop Software Development
Description

Opa is an open source programming language for building web applications. It is free to use and comes with a compiler and JavaScript library.

Platforms
Windows macOS Linux Browser
Links

Alternatives to Opa

  1. AngularJS alternatives

    AngularJS

    Free

    AngularJS is a software which allows the user to extend their HTML vocabulary. This extension creates dynamic views in web applications that previously had not been possible. HTML is a coding lan...

    {{ alternatives[0].votes }}
  2. Ruby on Rails alternatives

    Ruby on Rails is a cross-platform web development framework that allows developers to create databases, webpages, and provide various web services. The framework was introduced in 2005 and continue...

    {{ alternatives[1].votes }}
  3. Polymer alternatives

    Polymer

    Free

    We work on libraries, tools, and standards to help developers build a better web.

    {{ alternatives[2].votes }}
  4. Haxe alternatives

    Haxe

    Free

    Haxe is an open source toolkit based on a modern, high level, strictly typed programming language.

    {{ alternatives[3].votes }}
  5. ASP.NET alternatives

    ASP.NET

    Free

    Build web apps and services that run on Windows, Linux, and macOS using using C#, HTML, CSS, and JavaScript. Get started for free on Windows, Linux, or macOS.

    {{ alternatives[4].votes }}
  6. ember.js alternatives

    ember.js

    Free

    Write dramatically less code with Ember's Handlebars integrated templates that update automatically when the underlying data changes. Don't waste time making trivial choices. Ember. js incorporat...

    {{ alternatives[5].votes }}
  7. Derby alternatives

    Derby

    Free

    What is Apache Derby? Apache Derby, an Apache DB subproject, is an open source relational database implemented entirely in Java and available under the Apache License, Version 2. 0. Some key advant...

    {{ alternatives[6].votes }}
  8. FeathersJS alternatives

    FeathersJS

    Free

    FeathersJS is an open source platform for users to create REST API's and real-time applications. FeathersJS provides tools and patterns to create these apps in little to no time to increase maximum...

    {{ alternatives[7].votes }}
  9. Nim (programming language) alternatives

    Nim is a systems and applications programming language. Statically typed and compiled, it provides unparalleled performance in an elegant package.

    {{ alternatives[8].votes }}
  10. Ceylon alternatives

    Ceylon

    Free

    August 21, 2017: Ceylon is moving to the Eclipse Foundation!

    {{ alternatives[9].votes }}
  11. Kotlin alternatives

    Kotlin

    Free

    Kotlin · Learn Community Try Online. Statically typed programming language for modern multiplatform applications. 100% interoperable with Java™ and Android™. Try Kotlin Kotlin 1. 2 available...

    {{ alternatives[10].votes }}
  12. Sails.js alternatives

    Sails.js

    Free

    views/homepage. ejs. Purpose. #. This is the actual template that is rendered by default when a user visits the base URL of your lifted app.

    {{ alternatives[11].votes }}
  13. Kendo UI alternatives

    Kendo UI

    Freemium

    Kendo UI is a component library for JavaScript that allows developers to create slick and modern looking web apps in a fraction of the time.

    {{ alternatives[12].votes }}
  14. Backbone.js alternatives

    Backbone. js markets itself as coding software designed to give web applications structure. It accomplishes this by providing intricate models with key-value bindings and custom events built into i...

    {{ alternatives[13].votes }}
  15. Koa alternatives

    Koa

    Free

    Koa requires node v7. 6. 0 or higher for ES2015 and async function support.

    {{ alternatives[14].votes }}
  16. Catalyst alternatives

    Catalyst is the most popular agile Perl MVC web framework that encourages rapid development and clean design without getting in your way.

    {{ alternatives[15].votes }}
  17. Yesod alternatives

    Yesod is a development tool used to create highly efficient websites and web applications from the ground up. Yesod includes almost everything you need to build a website, from templates to routing...

    {{ alternatives[16].votes }}
  18. Apache Flex alternatives

    Apache Flex is an open-source tool that allows users to build their own apps. Applications can be designed and created for a variety of mobile and traditional platforms. These include iOS, Windows,...

    {{ alternatives[17].votes }}
  19. mithril alternatives

    mithril

    Free

    Mithril is used by companies like Vimeo and Nike, and open source platforms like Lichess. If you are an experienced developer and want to know how Mithril compares to other frameworks, see the fram...

    {{ alternatives[18].votes }}
  20. Express.js alternatives

    Express. js is a web framework for Node. js that was inspired by Sinatra. It was created and released under the MIT license by T. J.

    {{ alternatives[19].votes }}
  21. Sinatra alternatives

    Sinatra

    Free

    A Brief Description of Sinatra Software Sinatra is a software whose development and design is attributed to Blake Mizerany. The software is freely accessible since it is an open source web applicat...

    {{ alternatives[20].votes }}
Suggest an Alternative

Missing a software in the list? We are always happy if you help us making our site even better.

Suggest an Alternative

Opa Reviews

We have 1 review for Opa. The average overall ratings is 4.0 / 5 stars.

Write a Review
grex avatar
My Opinion on Opa
written by grex on 2018-03-02 04:26:15
Overall
Ease of Use
Customer Service
Value For Money

Overall Opinion: Opa is a new programming language that essentially is all-encompassing when it comes to web development. It aims to replace the use of several different languages by enabling developers to write single-tier applications while letting Opa’s engine create the client, server, and database code from within. It also makes deploying applications much easier since developers only have to copy one file to the location of the executable. Security is enhanced because of the monotheistic nature of the program. Internally, Opa thinks your application’s files, directories, etc. are in an external file system, but they aren’t. All of this is compiled from within the application. If the application’s directory is accessed, the folders and files won’t be seen, so they cannot be manipulated. Opa also has a built-in security auditor that functions and provides feedback as your application is built. Opa’s engine is written in OCaml and, for developers, that makes it necessary to learn an entirely new language develop applications and also contribute updates and improvements to Opa’s source code. Its IDE also could be more robust, so “debug-by-printf” is the preferred debugging method. Opa’s documentation is good, but still is evolving. Opa is still in a growth phase. Developers are slowly learning how to work with it despite their dependence on other languages and development technologies. It can be a great tool for rapid prototyping and deployment and production of scientific and educational tools in the meantime.

Pros: Only need one language to develop web applications Eliminates need to use separate languages for application server, UI, and database Opa libraries are compatible with JavaScript Can build cloud apps with Opa Free to use

Cons: Developers must learn the entire language since it is an all-in-one solution Some functionality is sacrificed since other languages cannot be integrated Opa must be implemented from the top-down Must learn OCaml to contribute to the open source project Documentation is evolving

grex is using Opa every other week recently.

Features

  • Open-source web development language
  • Compiles code accordingly, such as JavaScript
  • Available in 64-bit Linux and Mac OS X
  • Typechecker feature verifies code
  • HTML5 support
You can always update Opa to add more features!

Opa Videos

Youtube Video: Classic Game Room - OPA OPA review for Sega Mark III

Thank you! CGR is supported by fans on Patreon.com Buy your games "eBayisably" through ClassicGameRoom.com New CGR shirts & gear! http://www.CafePress.com/cl...

Disclaimer: This video was not made by us, but we found it interesting enough to embed it here.

Comments

Commenting on this article is disabled right now.

About This Article

This page was composed by Alternative.me and published by Alternative.me. It was created at 2018-05-01 00:25:13 and last edited by Alternative.me at 2020-03-06 07:49:58. This page has been viewed 4631 times.

Did you like this article about Opa? Please rate it!
4 of 5 liked this article. This is equivalent to a star rating of 4.00 / 5.
Yes
No

More Software in Desktop Software > Development

More Popular Desktop Software

Filter Platforms

{{key}}

Filter Features

Plain JavaScript options Test code and applications to reduce bugs Real-time REST API's in an instant Flexible plug-ins * Datastore Agnostic A library featuring over 70 components Four different price points available Excellent overall package Easy application to existing projects Compile-Time Checking Automatically Asynchronous Provides Simple DSL's for Templating Allows creation of mobile apps. Can create and manage animation. Includes automation-testing framework. Create websites with this Node. Feathers: Fast prototype and app maker LoopBack: Open source REST API creator Hydra-Express: For building Node. Minimalist GraphQL server
Suggest an Alternative to Opa
{{ suggestSubmitSuccess }}
You can only sugggest alternatives that are already published on our platform. If you want to submit a software or app, please visit your account page to submit a software.
List of Suggestions
Please start typing the name of the software you want to suggest as alternative to Opa in the field above.
{{ suggestSubmitError }}
Suggest {{ suggestedAlternatives.length }} Alternative(s)
Login
This action requires user authentication. Please log in.
Don't have an account yet? Sign up.