browser-common

Small, tree-shakeable TypeScript wrappers around 40+ browser Web APIs.

import {
  isClipboardApiAvailable,
  copyToClipboard,
} from '@rtorcato/browser-common/clipboard'

if (isClipboardApiAvailable()) {
  await copyToClipboard('hello world')
}

Get started →Browse the API

npm install @rtorcato/browser-common

Use with AI

A skill ships with the package so coding agents use browser-common correctly — whichever tool you're in.

Read the rules →

Any coding agent

Pull the skill into any tool the skills CLI supports.

npx skills add https://github.com/rtorcato/browser-common --skill browser-common

Claude Code

The repo is its own plugin marketplace — add it, then install the skill.

/plugin marketplace add rtorcato/browser-common

/plugin install browser-common@browser-common

Cursor, Copilot, Codex

They read AGENTS.md. It ships in the npm tarball, so it is already in your node_modules.

node_modules/@rtorcato/browser-common/AGENTS.md

Tiny per-module imports

Under 1 kB brotlied per subpath. Tree-shake to just the bytes you use.

Safe by default

Every module exports `is<Name>Available()`. Operations never throw on unsupported runtimes.

TypeScript-first

Strict types, generics preserved, JSDoc-rich in your IDE. Zero runtime dependencies.

44 Web APIs covered

One subpath per spec — clipboard, geolocation, storage, observers, and 40 more.

One subpath per Web API

Eight focused categories. 44 modules. Import exactly what you need.

View all modules →

Storage

4 modules

Local, session, cookies, and the File System Access API.

localstoragesessionstoragecookiesfilesystem

Sensors

7 modules

Battery, geolocation, motion, orientation, idle and screen state.

batterygeolocationmotionorientation

Input

8 modules

Clipboard, drag-and-drop, focus, forms, keyboard, pointer and touch.

clipboardkeyboardpointereventstouchevents

Media

5 modules

Canvas, HTML media, devices, vibration and web-share.

canvashtmlmediamediadeviceswebshare

DOM & Navigation

6 modules

DOM helpers, fullscreen, iframe, history, location and window.

domfullscreenhistorywindow

Observers

4 modules

IntersectionObserver, MutationObserver, ResizeObserver and PerformanceObserver.

intersectionmutationobserverresizeobserverperformance

Background

4 modules

Background tasks, service workers, web locks and WebSockets.

backgroundtasksserviceworkersweblockswebsockets

Notifications & UI

6 modules

Alerts, notifications, print, encoding, permissions and shared helpers.

notificationsprintpermissionsalert

Sibling projects

More from @rtorcato — same conventions, same release pipeline.

@rtorcato/js-common

Docs ↗

Tree-shakeable TypeScript utilities — tiny bundles, full type safety, CLI included.

@rtorcato/api-common

Docs ↗

Framework-agnostic building blocks for Node.js APIs — errors, auth, rate limiting, OpenAPI, Express + Hono.

@rtorcato/db-common

Docs ↗

Shared, tree-shakeable TypeScript database utilities for Node projects.

@rtorcato/cf-common

Docs ↗

Typed TypeScript wrappers and helpers for Cloudflare bindings and APIs.

@rtorcato/react-common

Docs ↗

Published React 19 component library — shared UI primitives.

@rtorcato/swift-common

Docs ↗

SwiftUI package of reusable views and helpers to build apps faster.

@rtorcato/supabase-common

Docs ↗

Shared, tree-shakeable TypeScript helpers for Supabase — client, auth, and database utilities.

@rtorcato/repo-tooling

Docs ↗

One wizard to scaffold TypeScript, linting, testing, and releases for any JS project.

@rtorcato/repo-ai

Docs ↗

Turns ai-ready GitHub issues into reviewed PRs — one worktree per issue, two agent reviewers.

@rtorcato/db-x

Docs ↗

Production-grade database schema deployment with the ergonomics of a JSX component.

@rtorcato/brand-kit

GitHub ↗

Banner, social card and favicon for a repo — SVG sources you can regenerate, rendered to PNG.