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What is Puma?

Unlike other Ruby Webservers, Puma was built for speed and parallelism. Puma is a small library that provides a very fast and concurrent HTTP 1.1 server for Ruby web applications.
Puma is a tool in the Web Servers category of a tech stack.
Puma is an open source tool with 6K GitHub stars and 1K GitHub forks. Here鈥檚 a link to Puma's open source repository on GitHub

Who uses Puma?

103 companies reportedly use Puma in their tech stacks, including StackShare, Product Hunt, and esa.

142 developers on StackShare have stated that they use Puma.

Why developers like Puma?

Here鈥檚 a list of reasons why companies and developers use Puma
Puma Reviews

Here are some stack decisions, common use cases and reviews by companies and developers who chose Puma in their tech stack.

Jerome Dalbert
Jerome Dalbert
Senior Backend Engineer at StackShare | 6 upvotes 34.5K views

We switched from Unicorn (process model) to Puma (threaded model) to decrease the memory footprint of our Rails production web server. Memory indeed dropped from 6GB to only 1GB!

We just had to decrease our worker count and increase our thread count instead. Performance (response time and throughput) remained the same, if not slightly better. We had no thread-safety errors, which was good.

Free bonus points are:

  • Requests are blazing fast on our dev and staging environments!
  • Puma has first-class support for WebSockets, so we know for sure that Rails ActionCable or GraphQL subscriptions will work great.
  • Being on Puma makes us even more "default Rails"-compliant since it is the default Rails web server these days.
See more

Puma Alternatives & Comparisons

What are some alternatives to Puma?
Atlas is one foundation to manage and provide visibility to your servers, containers, VMs, configuration management, service discovery, and additional operations services.
nginx [engine x] is an HTTP and reverse proxy server, as well as a mail proxy server, written by Igor Sysoev. According to Netcraft nginx served or proxied 30.46% of the top million busiest sites in Jan 2018.
Apache HTTP Server
The Apache HTTP Server is a powerful and flexible HTTP/1.1 compliant web server. Originally designed as a replacement for the NCSA HTTP Server, it has grown to be the most popular web server on the Internet.
Microsoft IIS
Internet Information Services (IIS) for Windows Server is a flexible, secure and manageable Web server for hosting anything on the Web. From media streaming to web applications, IIS's scalable and open architecture is ready to handle the most demanding tasks.
Apache Tomcat
Apache Tomcat powers numerous large-scale, mission-critical web applications across a diverse range of industries and organizations.
See all alternatives

Puma's Followers
142 developers follow Puma to keep up with related blogs and decisions.
praveen kumar
Simon Rascovsky
Yosef Benny Widyokarsono
Emre Can Y谋lmaz
Stefan Aurori
vic bravo
John Alton