# simplefocus/FlowType.JS

Web typography at its finest: font-size and line-height based on element width.

Repository: https://github.com/simplefocus/FlowType.JS
Canonical: https://ross.abutalabs.com/products/flowtypejs
Homepage: http://simplefocus.com/flowtype/
Language: JavaScript
License: MIT
License Family: permissive
Last push: 2021-07-28T17:32:29+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 4768, "days_push": 1862, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 4562, forks 441 (observed 2026-08-28T04:08:53.490522+00:00)

## What it is
FlowType.JS is a jQuery plugin that adjusts font-size (and formerly line-height) based on an element's width to maintain ideal character counts per line across screen sizes. It is now deprecated, as the same effect can be achieved with plain CSS fluid typography.

## Use cases
- make text resize fluidly with container width
- keep 45-75 characters per line at any screen width
- responsive web typography without media queries
- set min/max font-size and width thresholds for scaling text
- replace with CSS fluid typography techniques

## When to choose
- maintaining a legacy jQuery codebase that already uses it
- need quick fluid typography in an old browser environment without modern CSS support

## When to avoid
- starting a new project - use CSS clamp() fluid typography instead
- projects not using jQuery
- need line-height auto-adjustment (removed in v1.1)

## Facets
- artifact type: plugin
- maturity: abandoned
- function: ui-components, frontend-framework
- domain: web-development, frontend, web-design
- platform: browser
- tags: typography, responsive-design, jquery-plugin, fluid-typography, deprecated, javascript

## Member repositories
- simplefocus/FlowType.JS (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:08:53.490522+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 2026-08-29T18:19:59.922486+00:00, confidence not recorded.
  - readme: https://github.com/simplefocus/FlowType.JS (fetched 2026-08-28T04:08:53.490522+00:00, sha 674c7761f727)
  - homepage: http://simplefocus.com/flowtype/ (fetched 2026-08-29T09:05:38.433417+00:00, sha 41ccb462a284)
  - registry_npm: https://registry.npmjs.org/flowtype.js (fetched 2026-08-29T09:05:38.436109+00:00, sha 11efe83e0b40)
- Data as of 2026-08-30T08:39:29.467469+00:00.