Alternatives to Responsively

3 editor-selected alternatives · Responsively overview →

source: tools.alternatives · stored order · active records only; review scores are annotations and never change membership or order

A directional evidence panel appears only when the substitute rationale, trade-offs, sources, and verification date have been recorded. Older selections without that panel remain visible but are unclassified under the new evidence contract.

React DevTools

open sourceexplicit relation

Official browser extension by Meta for inspecting and debugging React component trees, props, state, hooks, and context in real-time. Features component highlighting on hover, profiler for measuring render performance and identifying bottlenecks, and component search/filtering. Supports React 16+ including Suspense, error boundaries, and concurrent features. Available for Chrome and Firefox. Essential for debugging re-renders, state management issues, and understanding component hierarchies.

100% free and open-source React inspection and profiling suite developed by Meta and the React Core Team under the MIT License ($0). Available as browser extensions (Chrome, Firefox, Edge) and a standalone package for React Native and embedded environments. Includes a Components panel for inspecting Props, State, Hooks, and React 19 Server Component (RSC) boundaries, a dedicated Profiler with flamegraph analysis and re-render reason detection, and console $r bindings with zero commercial restrictions.

Vue DevTools

open sourceexplicit relation

Official browser DevTools extension for Vue.js providing deep inspection of component trees, reactive state, props, events, and slots. Includes Pinia/Vuex store debugging with time-travel, Vue Router inspection, performance timeline, and component highlighting. Works with Vue 2 and Vue 3. Available for Chrome and Firefox with standalone Electron app. Essential for debugging reactivity and understanding component hierarchies in Vue applications.

100% free and open-source developer debugging suite developed by the Vue.js Core Team under the MIT License ($0). Provides browser extensions (Chrome, Firefox, Edge), an in-page Vite plugin overlay (@vitejs/plugin-vue-devtools), and a standalone app for remote and mobile debugging. Includes full inspection for Pinia stores with time-travel debugging, Vue Router tracking, component props/state inspection, render timelines, and IDE direct jump integrations with zero commercial fees or usage limits.

Polypane

explicit relation

Standalone browser built specifically for web developers and designers that shows multiple synchronized viewports side by side for responsive design testing. Features accessibility inspector (WCAG compliance checking), visual regression testing via screenshots, layout debugging overlays, meta tag validator, social media preview cards, and color contrast checker. Reduces the need for constant resizing and device switching during front-end development. Available on macOS, Windows, and Linux.

Commercial standalone developer browser with a 14-day free trial (no credit card required). Individual plan is €12/month (or €9/month billed annually at €108/yr) for solo developers across up to 3 computers. Business plan starts at €47/month (or €39/month billed annually) for teams up to 10 users with centralized billing and priority support. Enterprise plans start around €332/month for 20+ seats with SSO and custom billing. Free 1-year licenses available for students via GitHub Student Pack, and 50% discount for non-profits and educators.

Open-source Responsively alternatives

React DevTools, Vue DevTools — see all open-source developer tools.

More Browser Extensions & DevTools tools

same category, not editor-selected alternatives — see how Responsively compares →

RequestlyRequestly is a BrowserStack-backed API client, HTTP interceptor, mock server, and session replay tool for frontend and QA teams. Its current product is commercial/API-client led, while the legacy interceptor/open-source code is AGPLv3. The free plan covers individual workflows, and Pro lists at $12/user/month monthly or $9/user/month annually for collaborative QA and frontend debugging teams.HyperbrowserHyperbrowser is a cloud browser platform for AI agents and automation, providing managed Chrome sessions through Playwright, Puppeteer, CDP, REST, Python, and Node.js SDKs. Docs cover Stagehand, stealth/proxy options, ad blocking, recordings, scraping APIs, and credit pricing without promising universal CAPTCHA or anti-bot bypass.Accomplish CoworkerAccomplish Coworker is an MIT-licensed open-source AI coworker that runs on the desktop, combining computer-use style browsing with code execution so agents can research, implement, run, and debug workflows in one local environment.Agent BrowserAgent Browser is a Rust-based browser automation CLI designed specifically for AI agent workflows rather than traditional testing. Developed by Vercel Labs, it provides semantic element selection through a refs system, accessibility tree snapshots, session persistence, and authentication vaults. Unlike Playwright or Puppeteer which target test automation, Agent Browser optimizes for token efficiency and deterministic element selection that gives LLMs reliable browser interaction capabilities.BrowserOSBrowserOS is a privacy-first, open-source agentic browser for running AI assistants locally inside real browsing sessions instead of handing every task to a remote cloud browser.BuiltWithWeb technology profiler that identifies the frameworks, CMS, analytics, advertising, payment and hosting tools powering any public website. The database tracks 113,000+ internet technologies across 673 million domains, and the browser extension surfaces the full stack of whichever page you are viewing with a single click. Essential for competitive research, sales prospecting, compatibility checks and due diligence.ErudaOpen-source mobile web console that embeds a full developer toolkit into any mobile browser. Provides console, element inspection, network monitor, resource viewer, performance timing, and JavaScript execution on devices that lack native DevTools. The de facto standard for debugging responsive layouts, mobile-specific JavaScript errors, and production issues on phones — loaded with a single script tag or a browser extension.HoverifyHoverify is a browser extension that consolidates essential web development tools into a single overlay interface. It provides element inspection with CSS details, responsive design testing, accessibility checking, color picking, screenshot capture, and asset downloading. Activated by hovering over any webpage element, it provides instant development context without opening browser DevTools.JSON CrackJSON Crack transforms structured data files into interactive, visual graphs that make complex nested data easy to understand. Paste or import JSON, YAML, XML, CSV, or TOML and instantly see the data as a navigable node graph with collapsible sections, search, and path highlighting. All processing happens client-side with no server storage.

FAQ

Which Responsively alternative is listed first?

React DevTools is first in the editor-selected list of 3 Responsively alternatives. The stored order is editorial; review scores do not determine membership or position.

Are there open-source Responsively alternatives?

Yes — React DevTools, Vue DevTools are open source.