Local-first responsive website testing and visual regression tool for developers.
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Updated
Oct 12, 2026 - TypeScript
Local-first responsive website testing and visual regression tool for developers.
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.
Manual QA portfolio project covering test planning, executed test cases, defect reporting, evidence, GitHub Issues, and defect tracking for the Restful Booker Platform.
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 desktop QA browser for testing your own website forms by US location (state, city, ZIP), emulated device and browser. Windows, Linux, macOS.
Responsive testing for Chrome and Firefox. Compare multiple viewports, run local SEO and accessibility checks, and export reports. Supports English, Turkish and Norwegian Bokmål.
Free, open-source responsive design tester: see a site on 290+ phones, tablets and desktops at once, find layout bugs on each, and check pages from the CLI or AI agents (MCP).
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.
A modern toolbox of useful utilities for frontend developers, including JSON formatting, CSS generators, image tools, and debugging helpers — built with pure HTML, Tailwind CSS, and JavaScript.
A simple, powerful cross-device testing tool for web developers. Test any website across multiple devices simultaneously with AI-powered automation planned.
Playwright suite for a storefront, built around checkout arithmetic rather than screens. 32 tests across desktop and phone, including accessibility. Three defects, one of them an empty order the store confirms.
Manual UI Testing project including test cases, bug reports, and test summary
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
Breakpointer — Chrome extension to preview websites at multiple viewport sizes and find where your layout breaks.
Run MadScope responsive testing and visual regression in GitHub Actions.
Preview any HTML file or URL in real iPhone, iPad, Android & desktop frames. One HTML file, zero dependencies, 4 languages, dark/light, offline PWA.
Responsive testing matrix: 15 tests across 3 sites (SauceDemo, DemoBlaze, The Internet) x 5 viewports (mobile, tablet, desktop, widescreen). Screenshots + video at every breakpoint. Playwright + TypeScript.
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