# endtwist/kerning.js

Take control of your web typography.

Repository: https://github.com/endtwist/kerning.js
Canonical: https://ross.abutalabs.com/products/kerningjs
Homepage: http://kerningjs.com
Language: JavaScript
License Family: other
Last push: 2016-02-06T17:02:40+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 5464, "days_push": 3861, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1040, forks 79 (observed 2026-08-28T04:03:20.413286+00:00)

## What it is
Kerning.js is a small jQuery-dependent JavaScript library that lets you kern, style, transform, and scale web typography per-letter or per-word using custom CSS attributes. It supports letter/word pairs, repeats, conditionals by font, and engine- or OS-specific prefixes.

## Use cases
- kern individual letter pairs on a webpage
- apply per-letter or per-word CSS styling to headings
- conditionally adjust typography based on the rendered font
- create fine-grained typographic effects like rotating or scaling single letters
- apply different kerning rules per browser or operating system

## When to choose
- you need precise manual kerning or per-character styling that plain CSS cannot express
- your project already uses jQuery and you want a lightweight drop-in script
- you want font-conditional typography rules without JavaScript conditionals

## When to avoid
- your project does not use jQuery and you want a dependency-free solution
- you need modern CSS features like variable fonts or font-feature-settings instead
- you need an actively maintained library - the last release was in 2016

## Facets
- artifact type: library
- maturity: maintenance
- function: ui-components, css-framework, templating
- domain: web-development, frontend, web-design
- platform: browser
- tags: typography, kerning, jquery, css-extensions, letter-spacing, text-styling, javascript

## Member repositories
- endtwist/kerning.js (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:20.413286+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 2026-08-30T07:03:29.710603+00:00, confidence not recorded.
  - readme: https://github.com/endtwist/kerning.js (fetched 2026-08-28T04:03:20.413286+00:00, sha 2ea69f46bad4)
  - homepage: http://kerningjs.com (fetched 2026-08-29T13:04:16.235066+00:00, sha 82fc0b06e03f)
  - site_page: https://webupon.com/about (fetched 2026-08-29T13:04:16.244530+00:00, sha 8c4d21762a78)
  - site_page: https://webupon.com/about-us (fetched 2026-08-29T13:04:16.247562+00:00, sha 8c4d21762a78)
- Data as of 2026-08-30T08:39:29.467469+00:00.