Expressir ("EXPRESS in Ruby") is a Ruby parser for EXPRESS and a set of tools for accessing EXPRESS data models.

Convert HTML document to Microsoft Word document. This gem is in active development.

LutaML: data models in textual form

Parser and builder for XML Schema Definition (XSD) files.

Executable to process any Metanorma standard.

Converts LaTeX math into MathML.

A Ruby library for parsing and generating NISO Access and License Indicators (ALI) Schemas data

Implementation of the ISO Standard Atmosphere (ISA) model as defined in ISO 2533 and ICAO 7488/3 1994. Reference implementation used in ISO 2533:2025."

Parser and generator for OASIS Genericode

Concept models for terminology glossaries conforming ISO 10241-1.

Library of Congress MODS / MADS parser

ietf-data-importer offers reliable offline access to metadata for IETF working groups and IRTF research groups. This provides a dependable alternative to the official resources at https://tools.ietf.org/wg/ and https://irtf.org/groups, which may experience downtime or connectivity issues.

Library of Congress MODS / MADS parser

Hypertext Application Language (HAL) implementation for Lutaml model

Parser and generator for NIST Metaschema

MathML parser and builder used in Plurimath.

Library to work with OGC ModSpec.

NISO JATS format parser

Library for manipulation of OASIS Exchange Table Model XML.

OGC GML data model parser