HdrHistogram is an algorithm designed for recording histograms of value measurements with configurable precision. Value precision is expressed as the number of significant digits, providing control over value quantization and resolution whilst maintaining a fixed cost in both space and time.

Fast HTML escape utility

Ruby wrapper for hirlite

A Hoe plugin to help you debug your C extensions. This plugin provides `test:gdb` and `test:valgrind` tasks (plus a few variants). As of v1.5 it also can generate a valgrind suppression from a previous test suite's log file. See the `Hoe::Debugging` module for a few configuration options. This plugin expects you to have `gdb` and `valgrind` available in your `PATH`.

HyperLogLog implementation in pure Ruby

Interactive Fiction Mapping Tool.

A Ruby binding for epoll(7)

Ruby gem for the IOTA core

ISeq collector for MRI 2.3 and later.

Import ECMAScript modules into Ruby and use values and functions like JavaScript is part of Ruby. Enables easy to set up server-side rendering for modern frontend stacks. Isorun embeds v8 into Ruby via a native extension built with Rust and deno_core.

Apache Solr JavaBin format (binary format) implementation for Ruby.

* A ruby extension for the MurmurHash2 functions. See http://murmurhash.googlepages.com/

PGP for JRuby

Native java implementation of a string stemming algorithm. JRuby replacement for `fast-stemmer` gem under MRI.

Wraps the official C++ implementation of Jsonnet

Julia on Ruby

Binding to libkernaux - auxiliary library for kernel development.

Ruby interface to the Leap Motion Controller (via SWIG)

Libev-based fiber scheduler for Ruby 3.0

Ruby bindings for OSRM’s C++ API, providing faster and more customizable interaction with OSRM than HTTP based API. This gem requires native dependencies, you can find list of dependencies in README.