| 1 | 10 | 4 | concurrent-ruby | Modern concurrency tools including agents, futures, promises, thread pools, actors, sup... |
| 2 | 12 | 12 | rack | Rack provides a minimal, modular and adaptable interface for developing
web application... |
| 3 | 78 | 91 | puma | Puma is a simple, fast, multi-threaded, and highly parallel HTTP 1.1 server
for Ruby/Ra... |
| 4 | 278 | 973 | thin | A thin and fast web server |
| 5 | 464 | 898 | unicorn | unicorn is an HTTP server for Rack applications designed to only serve
fast clients on ... |
| 6 | 1,146 | 1,139 | rack-contrib | Contributed Rack Middleware and Utilities |
| 7 | 8,256 | 8,516 | iodine | A fast HTTP / Websocket Server with built-in Pub/Sub support (with or without a RESP3 d... |
| 8 | 9,322 | 13,083 | goliath | Async framework for writing API servers |
| 9 | 10,503 | 24,529 | torquebox | TorqueBox Gem |
| 10 | 10,508 | 13,623 | reel | A Celluloid::IO-powered HTTP server |
| 11 | 12,798 | 26,965 | sequenceserver | SequenceServer lets you rapidly set up a BLAST+ server with an intuitive
user interface... |
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