Ruby Server

Open-source Ruby projects categorized as Server
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Ruby Web Servers Rack Rails Development
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Top 6 Ruby Server Projects

Server

  1. Puma

    A Ruby/Rack web server built for parallelism

    Project mention: Ruby, Rails, Multi-threading e Puma: Como tudo isso se conecta? | dev.to | 2025-02-11

  2. InfluxDB

    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.

    InfluxDB logo

  3. MailCatcher

    Catches mail and serves it through a dream.

    Project mention: MailCatcher runs a super simple SMTP server | news.ycombinator.com | 2024-11-18

    The website is out of date, last release was actually in may (like smtp4dev) https://github.com/sj26/mailcatcher/releases/tag/v0.10.0

  4. falcon

    A high-performance web server for Ruby, supporting HTTP/1, HTTP/2 and TLS. (by socketry)

    Project mention: What's New in Ruby on Rails 8 | news.ycombinator.com | 2024-10-07

    I'm optimistic about Ruby's async story with the work Samuel Williams has been doing. https://github.com/socketry/falcon is the tip of the iceberg, which is built on top of https://github.com/socketry/protocol-http2 and a not of other repos at https://github.com/socketry.

    It's inspiring other's in the community to think of interesting applications, like using the HTML slot API to stream responses to HTML without JS. https://x.com/joeldrapper/status/1841984952407110037

    I know other frameworks have had asynchronous IO support forever, but it's finally coming to Ruby that seems like it will stick around and be well supported.

  5. Thin

    A very fast & simple Ruby web server

  6. invoice_printer

    Super simple PDF invoicing

  7. async-websocket

    Asynchronous WebSocket client and server, supporting HTTP/1 and HTTP/2 for Ruby.

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).

Ruby Server discussion

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Ruby Server related posts

  • Ruby, Rails, Multi-threading e Puma: Como tudo isso se conecta?

    2 projects | dev.to | 11 Feb 2025

  • Puma 6.6.0 Released – Return to Forever

    1 project | news.ycombinator.com | 28 Jan 2025

  • It's Time to Replace TCP in the Datacenter

    2 projects | news.ycombinator.com | 18 Nov 2024

  • Even more Opentelemetry!

    4 projects | dev.to | 6 Jun 2024

  • Would you consider Rails as stable nowadays ?

    2 projects | /r/rails | 8 Dec 2023

  • Preview emails with letter_opener, MailCatcher and MailHog

    2 projects | news.ycombinator.com | 13 Aug 2023

  • Hosting Rails App on AWS

    2 projects | /r/rails | 27 Jun 2023
  • A note from our sponsor - SaaSHub
    www.saashub.com | 23 Jun 2025
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Index

What are some of the best open-source Server projects in Ruby? This list will help you:

# Project Stars
1 Puma 7,765
2 MailCatcher 6,619
3 falcon 2,783
4 Thin 2,273
5 invoice_printer 970
6 async-websocket 184

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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

Did you know that Ruby is
the 12th most popular programming language
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