#browser

React file viewer for PDF, DOCX, PPTX, XLSX, EPUB, Markdown, code and media—20+ formats, rendered entirely in the browser.

Free AI with your ChatGPT account

Checks if the image is animated 🎞

Chrome DevTools Protocol for Python — direct, typed, async. No Node.js, no ChromeDriver, no browser downloads.

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A JavaScript library to read, write, and merge ZIP archives in web browsers.

CountryStateCity - NPM Packages

Cache values in your Web Extension and clear them on expiration. Also includes a memoize-like API to cache any function results automatically

A lean and fast 'fs' for the browser

Self-healing browser QA: natural-language scenarios verified by an AI agent, replayed deterministically in CI

Copy stuff into clipboard from your browser using JS

webdriverio support for Vitest's Browser Mode

Browser telemetry for OnePatch — page views, clicks, errors and fetch spans, correlated with your backend traces.

ZPL label rendering 100% in browser (or node) without any third party tool. A completely local alternative to Labelary, labelzoom!

🦀Fastest ever Trad/Simp and regional Chinese variants converter | 中文简繁及地區詞轉換

small JS framework to easily provide UI screenshot-based tests

Browser automation CLI — wraps cdpwave and bidiwave, no Node.js, no Chromium download. CDP & WebDriver BiDi backends, 80+ commands, async core, serve mode, session recording.

js stack for node and the browser which is super easy LIFO

Agentic AI Coding Platform that enables everyone to train, design and embed custom LLMs into a custom agent. Deploy your agent into the builderforce (a workforce and hiring platform). Explore skills, personnas, content, governance and workforce agents in the marketplace.

Generate 100% human-realistic Mouse Trajectories with Timings.

Typed storage for browser extensions with namespaces, atomic updates, encrypted values, bucket-style storage, and React bindings.

SLICC's shared browser catalog, JSON schemas and discovery conformance corpus for slicc-cli (Go) and playwright-cli (Rust)

Headless browser library and HTTP server for Go: one interface over Rod and remote CDP, 27-action automation API, fingerprint leak patches, humanized input, and a self-test harness against public bot detectors.

Yet another ebook reader alternative: polished self‑hostable browser‑based EPUB & PDF library, static‑site or multi‑user mode.

Utility functions for WebExtensions

In-memory opfs (origin private file system) mock for Jest and Vitest.