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Lightpanda Browser is a headless browser built from scratch in Zig for AI agents and web automation. It is not based on Chromium, Blink, or WebKit; its implementation includes an HTML parser, V8 JavaScript support, a DOM tree and APIs, network loading, cookies, form input, proxy support, network interception, and optional robots.txt compliance. It can dump pages as HTML, Markdown, PNG, or PDF, or expose a Chrome DevTools Protocol and WebDriver BiDi server for clients such as Puppeteer and Playwright. Its native agent mode uses an LLM to navigate pages, click through flows, fill forms, and extract structured data. Sessions can be exported as deterministic, token-free PandaScript JavaScript and replayed without a model at runtime. The browser also provides an MCP server over stdio or HTTP, with isolated or shared browsing sessions for multiple agents. The project distributes nightly binaries for Linux and macOS, Docker images for Linux amd64 and arm64, and packages for Homebrew and the Arch User Repository. It can also be built from source with Zig and its V8, Libcurl, and html5ever dependencies.

LumaBrowser is a free, open-source desktop browser and local AI application maintained by Lumabyte, LLC. It combines a Chromium-based browser with GPU-aware local LLM runtimes, chat and agents, image, video, music and voice generation, browser automation, and an optional local API. The application reads the computer's hardware and estimates which models fit before download, selecting full, partial, or CPU offload and supporting model sources and runtimes such as llama.cpp, MLX, Ollama, LM Studio, and Hugging Face caches. Its agents can browse in separate tabs, read pages, use files and images, run document retrieval, and connect to external MCP servers. Claude Code, Codex, Cline, OpenCode, Selenium, Puppeteer, and Playwright can control it through MCP, WebDriver, or CDP, while a CLI and IDE plugins provide coding-agent access. It runs on Windows, Linux, and Apple Silicon macOS, with a Docker mode for headless server use. The software is licensed under AGPL-3.0-or-later; official unmodified builds can be used without a commercial license, while private modifications, proprietary combinations, or private extensions require licensing from Lumabyte, LLC.

Browser Use Pi is a TypeScript web agent built on Pi Mono. It combines a persistent V8 REPL with raw Chrome DevTools Protocol control: the agent writes JavaScript, uses accessibility-tree data and screenshots, and builds browser helpers as needed. It supports persistent sessions, saved logins, workspaces, streaming, hooks, typed results, follow-up tasks, and cloud browsers or a user's own Chrome; runs can be limited by steps, time, or cost, with partial work retained. Interaction highlights, recordings, and GIF exports can show the agent's work. It is distributed as the @browser_use/pi package for Node 22.19+ or Bun 1.3.14+, and its quickstart uses Browser Use Cloud without requiring a local Chrome installation.

Camofox Browser is an open-source anti-detection headless browser server for AI agents, built by the team behind jo and powered by Camoufox, a Firefox fork that applies fingerprint spoofing at the C++ level. It exposes browser automation through a REST API with accessibility snapshots, stable element references for clicking and typing, navigation and search macros, screenshots, downloads, file uploads, structured extraction, YouTube transcript extraction, and OpenAPI documentation. Browser contexts provide isolated cookies and storage, with optional persistence, cookie import, proxy and GeoIP configuration, VNC-based interactive login, and Playwright session tracing. It can run from npm, Docker, Fly.io, or Railway, and supports lazy browser startup and idle shutdown. The repository is licensed under MIT.