Async Ruby VS Ruby on Rails

Compare Async Ruby vs Ruby on Rails and see what are their differences.

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Async Ruby Ruby on Rails
23 541
2,251 56,919
0.8% 0.4%
8.8 10.0
8 days ago about 22 hours ago
Ruby Ruby
MIT License 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.

Async Ruby

Posts with mentions or reviews of Async Ruby. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2024-07-18.
  • Building a Multi-Connection Redis Server with Ruby's Async Library [Part 1]
    1 project | dev.to | 26 Feb 2025
    Recently I've started Codecrafters' Build your own Redis (which I highly recommend!). One of the first steps is to make a TCP server that can accept more than one connection. I noticed that all the provided solutions use threads or IO#Select, and none of them use a fiber-based solution with Async. In this really short article, I'll show how one could achieve the result using Async.
  • Rack for Ruby: Socket Hijacking
    1 project | dev.to | 4 Dec 2024
    Since the threading problem is specific to the Puma web server, let's look at another option: Falcon. This is a new, highly concurrent Rack-compliant web server built on the async gem. It uses Ruby Fibers instead of Threads, which are cheaper to create and have much lower overhead.
  • Persistent Redis Connections in Sidekiq with Async::Redis: A Deep Dive.
    4 projects | dev.to | 18 Jul 2024
    Async is a composable asynchronous I/O framework for Ruby. It allows you to do things concurrently using Fibers. Since 3.0, Ruby has a fiber scheduler and Ruby core supports it. This means you can have non-blocking I/O without much effort, for example, when using Net::HTTP. If you perform a blocking operation, such as an HTTP call, inside a fiber, it will immediately yield so that another fiber can become active and do some useful work instead of blocking and waiting for the HTTP call to complete.
  • EventMachine Performance Spikes
    2 projects | /r/ruby | 5 Sep 2023
    The Async gem is the natural successor, It's actively maintained, and allows you write synchronous code is if it wasn't non-blocking, and most libraries don't need any special support for Async (exceptions are gems with C extensions that do I/O and DB libraries with connection pooling that would otherwise be thread-based).
  • Philosophy of Coroutines
    7 projects | news.ycombinator.com | 1 Sep 2023
    https://github.com/socketry/async uses coroutines and I think in general it’s been a great model with very few downsides in practice.
  • Is ruby really slow?
    2 projects | /r/ruby | 21 Apr 2023
    There's async I/O. Here's a library that leans on Ruby 3's fiber scheduler.
  • Show HN: Goru, an experimental, Go-inspired concurrency library for Ruby
    2 projects | news.ycombinator.com | 3 Apr 2023
    Hey folks, wanted to show this off and get feedback. Still early/experimental but there are quite a few concepts I'm excited about here. This project came about while writing a program in Go and loving its approach to concurrency. Being a long-time Rubyist I immediately started to think about what similar concepts might look like in Ruby.

    I set out with two main design constraints:

    1. Lightweight: I didn't want routines to be backed by fibers or threads. Having been involved some in the async project (https://github.com/socketry/async), I had some experience using fibers for concurrency but was curious if they could be avoided.

    2. Explicitness: Routine behavior must be written to describe exactly how it is to behave. I always felt like concurrent code was hard to fully understand because of the indirection involved. On the spectrum between tedium and magical I wanted to err more on the side of tedium with Goru.

    Goru routines are just blocks that are called once for every tick of the reactor. It is up to the developer to implement behavior in terms of a state machine, where on each tick the routine takes some action and then updates the state of the routine for the next tick. This fulfills both design constraints:

    1. Because routines are just blocks, they weigh in at about ~345 bytes of memory overhead.

    2. Routine behavior is explicit because it is written as a state machine inside the block.

    Couple more features worth noting:

    * Goru includes channels for buffered reading/writing (similar to channels in Go).

    * Goru ships with primitives for non-blocking IO to easily build things like http servers.

    Curious your thoughts!

  • Twitter (re)Releases Recommendation Algorithm on GitHub
    12 projects | /r/programming | 31 Mar 2023
  • Simple MapReduce that melt my brain (yes, fibers there)
    3 projects | /r/ruby | 16 Mar 2023
    For those who are interested here is the question.
  • How does Ruby handle parallel HTTP requests in separate threads?
    3 projects | /r/ruby | 2 Mar 2023

Ruby on Rails

Posts with mentions or reviews of Ruby on Rails. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2025-05-07.
  • Unlocking Opportunities: How to Thrive as a Ruby Engineer in Today's Tech Landscape
    3 projects | dev.to | 7 May 2025
    Ruby on Rails open source projects. Contribute and learn at the same time.
  • Open Source: A Goldmine for Indie Hackers
    6 projects | dev.to | 6 May 2025
    Speed of Development: Frameworks such as Django or Rails accelerate the development process.
  • Indie Hacking with Open Source Tools: Innovating on a Budget
    12 projects | dev.to | 4 May 2025
    This ecosystem is fueled by repositories hosting powerful languages, functions, and versatile tools—from backend frameworks like Django and Ruby on Rails to containerization with Docker and distributed version control via Git. Moreover, indie hackers can also utilize open source design tools (e.g. GIMP, Inkscape) and analytics platforms such as Matomo.
    11 projects | dev.to | 4 Mar 2025
    Frameworks such as Django and Ruby on Rails simplify web development, while tools like Docker ensure consistency across environments.
  • Charybdis ORM: Building High-Performance Distributed Rust Backends with ScyllaDB
    3 projects | dev.to | 25 Apr 2025
    Ruby on Rails (RoR) is one of the most renowned web frameworks. When combined with SQL databases, RoR transforms into a powerhouse for developing back-end (or even full-stack) applications. It resolves numerous issues out of the box, sometimes without developers even realizing it. For example, with the right callbacks, complex business logic for a single API action is automatically wrapped within a transaction, ensuring ACID (Atomicity, Consistency, Isolation, Durability) compliance. This removes many potential concerns from the developer’s plate. Typically, developers only need to define a functional data model and adhere to the framework’s conventions — sounds easy, right?
  • Ask HN: What's the ideal stack for a solo dev in 2025
    4 projects | news.ycombinator.com | 26 Mar 2025
    As it's just you I'd stick with Ruby on Rails 8[1] as you already know it and I think it could realistically easily achieve what you're proposing.

    There's lots of libraries to for calling out external AI services. e.g. something like FastMCP[2] From the sound of it that's all you need.

    I'd use Hotwire[3] for the frontend and Hotwire Native if you want to rollout an app version quickly. I'd back it with SolidCache, SolidQueue, etc

    I'd use Kamal[4] to run it on cheap hosting using on something cheap from Hetzner.

    1. https://rubyonrails.org/

    2. https://github.com/yjacquin/fast-mcp

    3. https://hotwired.dev/

    4. https://kamal-deploy.org/

  • The Pain That Is GitHub Actions
    39 projects | news.ycombinator.com | 19 Mar 2025
    Once again, Rails is ahead of the curve on this:

    https://github.com/rails/rails/pull/54693

  • Open Source: A Goldmine for Indie Hackers – Unleashing Creativity and Collaboration
    6 projects | dev.to | 5 Mar 2025
    One of the standout benefits of open source software is its cost-effectiveness. Indie hackers can leverage robust tools such as MySQL and Python, which eliminate the financial barrier to high-quality software solutions. Frameworks like Django and Ruby on Rails enable swift development cycles, reducing the time-to-market for innovative ideas. This low-cost, high-efficiency approach allows entrepreneurs to focus on their core missions without worrying about expensive licensing fees.
  • Building a simple URL Shortener with Rails 8: A Step-by-Step Guide
    3 projects | dev.to | 27 Feb 2025
    Rails 8 New Features
  • Explain why we need .ruby-version file but no ruby DSL method in Gemfile in Rails apps
    1 project | dev.to | 16 Feb 2025

What are some alternatives?

When comparing Async Ruby and Ruby on Rails you can also consider the following projects:

Concurrent Ruby - Modern concurrency tools including agents, futures, promises, thread pools, supervisors, and more. Inspired by Erlang, Clojure, Scala, Go, Java, JavaScript, and classic concurrency patterns.

Roda - Routing Tree Web Toolkit

Polyphony - Fine-grained concurrency for Ruby

Sinatra - Classy web-development dressed in a DSL (official / canonical repo)

EventMachine - EventMachine: fast, simple event-processing library for Ruby programs

Cuba - Rum based microframework for web development.

InfluxDB – Built for High-Performance Time Series Workloads
InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
www.influxdata.com
featured
SaaSHub - Software Alternatives and Reviews
SaaSHub helps you find the best software and product alternatives
www.saashub.com
featured

Did you know that Ruby is
the 12th most popular programming language
based on number of references?