A suite of instrumentation metric primitives that can be exposed through a web services interface.

A fast, safe, extensible parser for CommonMark. This wraps the comrak Rust crate.

Markdown processing for GitLab Flavored Markdown

AutoCorrect is a linter and formatter to help you to improve copywriting, correct spaces, words, punctuations between CJK (Chinese, Japanese, Korean).

Captcha Gem for Rails, which generates captcha image by Rust.

Blazingly fast DataFrames for Ruby

An unofficial Ruby wrapper for Tiktoken, a BPE tokenizer written by and used by OpenAI. It can be used to count the number of tokens in text before sending it to OpenAI APIs.

`css_inline` inlines CSS into HTML documents, using components from Mozilla's Servo project. This process is essential for sending HTML emails as you need to use "style" attributes instead of "style" tags.

Itsi Scheduler - A light-weight Fiber Scheduler implementation for Ruby

Itsi Server - A light-weight Rack Server implementation for Ruby

Fast state-of-the-art tokenizers for Ruby

A Ruby binding for Wasmtime, a WebAssembly runtime.

Ruby wrapper for MRML, the MJML parser implementation in Rust.

Ruby bindings for yrs. Yrs "wires" is a Rust port of the Yjs framework.

Yet another Ruby profiler

Selma selects and matches HTML nodes using CSS rules. Backed by Rust's lol_html parser.

Provides native bindings to the Blake3 hash function for Ruby.

Core library for encrypted querying operations

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.

OSV is a high-performance CSV parser for Ruby, implemented in Rust. It wraps BurntSushi's csv-rs crate to provide fast CSV parsing with support for both hash-based and array-based row formats. Features include: Flexible input sources (file paths, gzipped files, IO objects, strings), configurable parsing options (headers, separators, quote chars), support for both hash and array output formats, whitespace trimming options, strict or flexible parsing modes, and is significantly faster than Ruby's standard CSV library.