# IBM/plex

The package of IBM’s typeface, IBM Plex.

Repository: https://github.com/IBM/plex
Canonical: https://ross.abutalabs.com/products/plex
Language: CSS
License: OFL-1.1
License Family: other
Topics: design, font, typeface
Last push: 2026-07-30T11:29:25+00:00

## Health v2 (maintenance only)
Score: 96/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 95, release rhythm 95, longevity 100
- inputs: {"age_days": 3256, "days_push": 34, "days_rel": 34, "gap_med": 0.0, "n_releases_24m": 23}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 11601, forks 619 (observed 2026-08-28T04:10:48.891041+00:00)

## What it is
IBM Plex is IBM's open-source corporate typeface family, including Sans, Serif, Mono, Sans Condensed, and Math variants with broad multilingual script support. The repository provides source files, prebuilt font packages in multiple formats, and npm packages for web and application use.

## Use cases
- use a free open-source font family for a website
- self-host web fonts via npm packages
- find a typeface supporting Arabic, Hebrew, Devanagari, Thai, and CJK scripts
- get a math font with extensive mathematical symbols as an alternative to STIX or Cambria
- brand an app with IBM's corporate typeface
- download desktop fonts for design work

## When to choose
- you need a versatile, professionally designed open-source typeface under the OFL license
- your UI must support many international scripts
- you want npm-installable font packages for web projects
- you need a comprehensive math font compatible with a serif typeface

## When to avoid
- you need a font not designed for UI/screen environments
- you require a license other than OFL for embedding restrictions
- you need a display or decorative typeface rather than a workhorse family

## Facets
- artifact type: library
- maturity: active
- function: ui-components, internationalization
- domain: web-design, web-development
- platform: cross-platform
- tags: font, typeface, typography, open-font-license, css, npm-packages, multilingual, design-system, localization, web-server, nodejs

## Member repositories
- IBM/plex (main) score 96

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:10:48.891041+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T17:15:28.889263+00:00, confidence not recorded.
  - readme: https://github.com/IBM/plex (fetched 2026-08-28T04:10:48.891041+00:00, sha 0199249c60b9)
- Data as of 2026-08-30T08:39:29.467469+00:00.