# Responsively App review (2026): is it any good? > Free open source browser that shows many device sizes at once Checked Nov 13, 2026 ยท graded Nov 13, 2026 by ToolGPA. Responsively App is a desktop browser for web developers that previews a site on many device sizes side by side, mirroring clicks, scrolls and navigation across them. It is built with Electron, is open source under the AGPL-3.0 license, and is free to download for Mac, Windows and Linux. - **Category:** Browsers - **Made by:** Responsively App - **Website:** https://responsively.app - **Runs on:** macOS, Windows, Linux - **Who should skip it:** Not for you if you want a daily browser, as it is a developer tool. - **Facts last checked:** Nov 13, 2026 ## Pricing As of Nov 13, 2026, Responsively App is free to use. - **Pricing model:** Free - **Free plan:** The whole app is free; its site and GitHub page list no paid plans. - **Free trial:** None listed. | Plan | Price | What you get | | --- | --- | --- | | Free | $0 | The full app, free and open source. The project takes sponsorships but sells no plans. | Read from https://responsively.app/ on Nov 13, 2026. Prices change, so confirm with Responsively App before buying. ## Key features - **All devices at once:** Many device previews show side by side, so there is no need to resize the dev tools window. - **Mirrored interactions:** A click, scroll or navigation in one preview is repeated in all the others in real time. - **Preview Suites:** Favorite device combinations are saved as Preview Suites and switched between while testing. - **Device profiles:** A large collection of device profiles is built in, and custom devices can be added. - **Unified Inspector and screenshots:** One inspector covers every device, and full-page screenshots of all devices are taken in one click. - **Ordinary browser features:** Cookie, local storage and session storage management, bookmarks and the usual dev tools are included. ## Good for - Front-end developers checking breakpoints across devices - Designers reviewing a page at several screen sizes - Developers who want a free alternative to paid viewport tools ## Worth knowing - It is a developer tool, not a general-purpose daily browser. - It is built on Electron, so it previews sites with Chromium rather than Safari or Firefox engines. - It runs on Mac, Windows and Linux only, with no mobile version. - A beta channel is offered next to the stable release. ## ToolGPA grades **GPA: 3.0 out of 4**, graded Nov 13, 2026. Responsively App is a free open source browser that shows your site on many device sizes at once and mirrors your clicks across them. It uses Chromium, so it will not show you Safari or Firefox behaviour. It is for developers, not for everyday browsing. - **Value for money: A.** Free and open source, with no paid plans listed. - **Free plan and trial: A.** The whole app is free, with no paid plans listed on its site or GitHub page. - **Features: C.** Many device views, mirrored interactions, device profiles and screenshots. It does that job fully, but it is a smaller job than a full developer toolset. - **Ease of use: B.** No store rating on record. Install it, enter a URL and see the devices. - **Platforms and integrations: C.** Desktop only: macOS, Windows and Linux. No mobile app and no integrations listed. These are ToolGPA's own grades. Graded from this listing, whose facts were read from Responsively App's own pages on 13 November 2026. Not based on using the product, and shorter than our full reviews. ## Where it stands among browsers - Responsively App's GPA of 3.0 is higher than 34 of the 60 other browsers we grade, and level with 9. - It stands best on value for money (A, above 22 of 60) and worst on features (C, above 2). - Responsively App has no paid plan. - On features, ease of use and platforms it scores 2.3 out of 4. Nothing scores higher for less, though at least one tool matches that score at a lower price. The category's chart of price against score: https://toolgpa.com/charts/browsers ## Keep it, or make your own? **Keep it.** Responsively App is free, so making your own would save you nothing. And it is not the kind of software a weekend replaces. - You could not: A web browser. - You could not: Capture tools hooked into the operating system. - You could not: Apps for macOS, Windows and Linux that stay in step with each other. A judgement by ToolGPA from this listing, by rules that are the same for every tool. Nothing was built to test it. **Tags:** Web browser, Open source, Screenshots ## Alternatives - [Polypane](https://toolgpa.com/tools/polypane): Chromium-based browser for web developers, with synced viewports. [Compare](https://toolgpa.com/compare/polypane-vs-responsively-app) - [Sizzy](https://toolgpa.com/tools/sizzy): Chromium browser for developers with synced device previews. [Compare](https://toolgpa.com/compare/responsively-app-vs-sizzy) - [Blisk](https://toolgpa.com/tools/blisk): Developer browser for testing sites on many devices at once. [Compare](https://toolgpa.com/compare/blisk-vs-responsively-app) ## Sources The prices, plans, platforms and features above were read from these pages on Nov 13, 2026: - https://responsively.app/ - https://responsively.app/download - https://github.com/responsively-org/responsively-app Page: https://toolgpa.com/tools/responsively-app Listed by ToolGPA (toolgpa.com).