Free, open-source responsive design tester. Preview any site on iPhone, Android, iPad and desktop side by side, with synced scrolling, per-device logins and one-click cookie reset.
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Updated
Nov 5, 2026 - JavaScript
Free, open-source responsive design tester. Preview any site on iPhone, Android, iPad and desktop side by side, with synced scrolling, per-device logins and one-click cookie reset.
Chrome extension that shows one website on every screen at once: phones, foldables, tablets, laptops, watches and TVs in a single tab, with navigation, scrolling and clicks in sync.
Mobile preview for developers and AI agents. See any website the way it looks on a real iPhone, iPad, Android phone or MacBook — and let an AI agent see and drive that same window over MCP. Responsive testing with device frames measured in millimetres. Windows and macOS apps, VS Code extension, MCP server.
Free, open-source Chrome extension to preview any website on phones, tablets and desktops side by side, with synced scrolling, screenshots and video recording. No debugger banner, no account.
Compare saved route screenshot manifests across viewport and device profiles; does not capture images.
MCP server for dynamic Playwright browser pool management — 75 tools, 28 built-in UI audits, 42 CLI commands, 143 device presets, golden profile auth. Built for Claude Code, Cursor, and AI-assisted web development.
Testes E2E do cardápio digital Anota AI com Cypress, em desktop e mobile (matriz de viewport no CI).
E2E testing suite for PokéAPI using Cypress and Page Object Model
A reproducible test bench: a page with 8 known defects, 3 viewports, 3 engines (Chromium, Firefox, WebKit) with Playwright, run in Docker.
Evidence-backed visual regression audits for web apps with Playwright: responsive UI checks, accessibility signals, screenshots, measurements, and reproducible findings.
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