isomorfeus-project VS opal-rails

Compare isomorfeus-project vs opal-rails and see what are their differences.


The powerful, isomorphic full stack web application development environment. (by isomorfeus)


Bringing Ruby to Rails · Rails bindings for Opal (by opal)
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isomorfeus-project opal-rails
1 4
15 481
- -0.4%
10.0 5.4
5 months ago 9 months ago
C Ruby
MIT License -
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.


Posts with mentions or reviews of isomorfeus-project. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2023-01-13.
  • Opal v1.7 released with Ruby 3.2 support
    5 projects | /r/ruby | 13 Jan 2023
    Opal itself is quite low level. It just gives you a compiler and Ruby runtime. There exist a couple of frameworks using Opal: two most developed are Hyperstack (deeply integrates Rails, Opal and React) and Isomorfeus (integrates Roda, Opal and Preact)


Posts with mentions or reviews of opal-rails. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2023-01-13.
  • Opal v1.7 released with Ruby 3.2 support
    5 projects | /r/ruby | 13 Jan 2023
    Opal itself aims just at creating a Ruby runtime and a couple of life improvements, but there exist a couple of helper gems, for instance Opal-Browser (for an idiomatic API to interact with DOM and other browser APIs), Opal-Rails (for integrating with a Sprockets pipeline of Rails), Opal-RSpec (to test your frontend application). There exist a number of libraries and bindings to JS libraries for Opal.
  • Opal 1.5.0 released - compile Ruby to JS and run it in a browser
    2 projects | /r/rails | 13 Apr 2022
    For Rails integration we provide opal-rails, a Gem, that after inclusion will transparently handle .rb files in your JavaScript asset directory (via Sprockets). To interface with a web browser, you would also need to use opal-browser. As an alternative you can use Hyperstack, which deeply integrates React, Rails and Opal.
  • Opal 1.3 released
    6 projects | /r/rails | 3 Nov 2021
    Opal itself is a low-level thing, not depending on Rails whatsoever. We provide an official Gem for integration with Rails that integrates everything nicely and allows you to have .rb files in your JavaScript assets directory. Unlike Rails, Opal is not opinionated, to interface with web browser APIs properly you need to either use a library that wraps DOM directly, use a similar one that wraps jQuery or use Hyperstack, a fully-fledged Rails-integrated framework based on React that also allows you to share your models between frontend and backend. It's also possible to not use any of those and interface JavaScript APIs directly using an API that looks like this: $$[:document][:location].replace("") or simply embed JavaScript with a backtick notation: `document.location.replace(#{@url})`.
  • Opal 1.2 (a Ruby implementation in JavaScript) released with Ruby 3.0 support
    2 projects | /r/rails | 12 Aug 2021

What are some alternatives?

When comparing isomorfeus-project and opal-rails you can also consider the following projects:

Opal - Ruby ♥︎ JavaScript

inline_svg - Embed SVG documents in your Rails views and style them with CSS

opal-browser - Browser support for Opal.

spec - The Ruby Spec Suite aka ruby/spec

TryRuby - This 4th iteration of TryRuby is a website where you can learn the Ruby language.

opal-rspec - Opal + RSpec = ♥️

opal-jquery - jQuery for Opal

opal-devtools - A Browser extension providing tools for developing with Opal Ruby in the browser.