# matthewhudson/current-device 📱 The easiest way to write conditional CSS and/or JavaScript based on device operating system (iOS, Android, Blackberry, Windows, Firefox OS, MeeGo), orientation (Portrait vs. Landscape), and type (Tablet vs. Mobile). Repository: https://github.com/matthewhudson/current-device Canonical: https://ross.abutalabs.com/products/current-device Homepage: https://matthewhudson.github.io/current-device/ Language: TypeScript License: MIT License Family: permissive Topics: device-detection, javascript, mobile Last push: 2026-06-08T23:55:23+00:00 ## Health v2 (maintenance only) Score: 84/100 (v2, computed 2026-09-03T02:20:16.233290+00:00) - activity 86, release rhythm 72, longevity 100 - inputs: {"age_days": 5096, "days_push": 86, "days_rel": 189, "gap_med": 0, "n_releases_24m": 2} - flags: none - formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) ## Adoption (not part of the score) Stars 3927, forks 576 (observed 2026-08-28T04:08:29.910752+00:00) ## What it is A lightweight JavaScript/TypeScript library that detects the device's operating system, type (mobile/tablet/desktop), and orientation, exposing a simple JS API and automatically adding conditional CSS classes to the element. It supports iOS, Android, Blackberry, Windows, macOS, Firefox OS, MeeGo, and more. ## Use cases - detect if user is on mobile or tablet in javascript - apply conditional css based on device operating system - detect portrait vs landscape orientation in browser - add device-specific css classes to html element - serve different styles for ios vs android - run mobile-specific javascript logic - detect device type in typescript ## When to choose - you need simple client-side device detection with zero configuration - you want both a JavaScript API and automatic CSS classes from one small library - you need orientation change callbacks for responsive behavior - you want TypeScript types included out of the box ## When to avoid - you need server-side or user-agent-string-based detection with detailed device metadata - you only need responsive layouts, which CSS media queries handle natively - you require feature detection rather than device detection - you need detection of specific browsers or browser versions ## Facets - artifact type: library - maturity: active - function: ui-components, developer-tools - domain: web-development, frontend, mobile-development - platform: browser - tags: device-detection, css-classes, responsive-design, user-agent, mobile-web, typescript, javascript, nodejs ## Member repositories - matthewhudson/current-device (main) score 84 ## Provenance - Observed fields: from GitHub, fetched 2026-08-28T04:08:29.910752+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 2026-08-29T18:24:42.648486+00:00, confidence not recorded. - readme: https://github.com/matthewhudson/current-device (fetched 2026-08-28T04:08:29.910752+00:00, sha 4bcb1ae2efee) - homepage: https://matthewhudson.github.io/current-device/ (fetched 2026-08-29T09:18:50.399783+00:00, sha b0aadf60acf1) - registry_npm: https://registry.npmjs.org/current-device (fetched 2026-08-29T09:18:50.409155+00:00, sha 864117ea8567) - Data as of 2026-08-30T08:39:29.467469+00:00.