responsively-org/responsively-app

Responsively App

A must-have dev tool for web developers for quicker responsive web development. 🚀

Save time by becoming 5x faster!

Download Now (free!): responsively.app

Responsively App

A modified browser built using Electron that helps in responsive web development.

Features

1. Mirrored User-interactions across all devices.
2. Customizable preview layout to suit all your needs.
3. One handy elements inspector for all devices in preview.
4. 30+ built-in device profiles with the option to add custom devices.
5. One-click screenshots on all your devices.
6. Hot reloading is supported for developers.

Please visit the website to learn more about the application - https://responsively.app

Download

The application is available for Mac, Windows and Linux platforms. Please download it from responsively.app

Alternatively, MacOS users can use brew

brew install --cask responsively

Also, Windows users can use chocolatey

choco install responsively

or winget:

winget install ResponsivelyApp

Linux users using an RPM Package Manager can use rpm

sudo rpm -i https://github.com/responsively-org/responsively-app/releases/download/v[VERSION]/Responsively-App-[VERSION].x86_64.rpm

otherwise, download an AppImage from the releases page

Follow us on Twitter for future updates -

Browser Extension

Install the handy browser extension to easily send links from your browser to the app and preview instantly.

• Download for Chrome
• Download for Firefox
• Download for Edge

MCP Server (AI coding agents)

Responsively App ships a built-in Model Context Protocol server, so AI coding agents like Claude Code and Cursor can drive the app while you build — load your dev server, switch device previews, interact with pages, and visually verify responsive layouts with per-device screenshots.

Install the app, launch it once, then connect from Claude Code:

claude mcp add responsively -- npx -y @responsively/mcp

Or add to Cursor's .cursor/mcp.json:

{
  "mcpServers": {
    "responsively": {"command": "npx", "args": ["-y", "@responsively/mcp"]}
  }
}

The app is launched on demand — connecting an agent session doesn't open it; the first tool call starts it automatically (and it stays open afterwards). If it's already running, it's reused.

Available tools:

Screenshots capture the visible viewport and are downscaled to at most 1000px wide.

claude mcp add --transport http responsively http://127.0.0.1:12720/mcp

Issues

If you face any problems while using the application, please open an issue here - https://github.com/responsively-org/responsively-app/issues

Roadmap

Here is the roadmap of the desktop app - https://github.com/responsively-org/responsively-app/projects/

Gold sponsors 🥇

Become a sponsor and have your company logo here

Contribute

To get started with contributing your awesome ideas to Responsively, follow the comprehensive guide here!

Get in touch

Come say hi to us on Discord! :wave:

Contributors ✨

Thanks go to these wonderful people (emoji key):

Manoj Vivek 💻 ⚠️ 📆	Suresh P 💻 ⚠️ 📆	Sigit Prabowo 💻	Leon Feng 📖	Kishore S 💻
José Javier Rodríguez Zas 💻 ⚠️	Roman Akash 💻	Romain Francony 💻	AARYAN-MAHENDRA 💻	Andy 💻
Ryan Pais 💻 ⚠️	Jonathan 💻	Gema Anggada ✌︎ 💻	jonathanurias96 💻	Federico Alecci 💻
Abduraimov Muminjon 📖	Víctor Lázaro 💻	Kavita Nambissan 💻	Prashant Palikhe 💻	Jaune Sarmiento 🖋
Diego Vieira 💻	Ajaykumar 💻	Kiruba Karan 💻	Sebastián Rodríguez 💻	Karthick Raja 💻
Johnny Zabala 💻	Ross Moody 🎨	Mehrdad Shokri 🚇	Abdelhak Akermi 💻	Carlos Perez 💻
Jayant Arya 💻	John Rawlins 💻	lepasq 💻	mrfelfel 💻	gorogoroumaru 💻
Rui Saraiva 💻	Mehmet Bakirci 💻	Julien Bertazzo Lambert 💻	Dinesh Balaji 💻	MedBMoussa 💻
Lucie Vrsovska 💻	Jakub Cabak 💻	Palakurthi Durga Kiran Kumar 💻	Karl Labrador 💻	Rishi Kumar Chawda 💻
Carlos Rafael de Oliveira Carneiro 💻	Zach Hoskins 💻	KIWAN KIM 💻	Andreas 💻	Panu Valtanen 💻
Dustin Dauncey 💻	heagan01 💻	Sahil Jangra 💻	Jay Carlson 💻	Michael Padilla 💻
Andreas Steinkellner 💻	aniknia 💻	Wayne Rocha 💻	crbon 💻	Mohammad S 💻
Reshad Sadik 💻	Kwesi Ansah 💻	Monalisa Sahoo 💻	Mitesh Tank 💻	Ryan 💻
jayway 💻	Alex Fernandez 💻	Danial Gharib 💻	Alexander Menk 📖	Tunahan Gediz 📖
Jeff Bowen 💻	Param Birje 💻	Prajjwal Yadav 📖	Steven Cabrera 💻	negar nasiri 💻
Gaurav Singh 💻	Nishidh Jain 💻	Samiksha Mishra 📖	Len Dierickx 💻	Suraj Bobade 💻
Sagar Hedaoo 💻	V 💻 ⚠️	Prabhas Jupalli 💻	Pulkit 💻	Brandon Yee 🖋
Wendy Pan 💻	Pranav Ithape 💻	SUKRIT PRAKASH SINGH 💻	Aryan Panchal 💻	Samran Ahmed 💻
SatyamAgrawal 💻	Sai Tharun Dusa 💻	Pavlo 💻 ⚠️	AnalyticalDataArtisan 💻	Kieren-Foenander 💻
Trishit Swarnakar 💻	Abhijeet Singh 📖	aaryan 💻	Michael Klikushin 💻	Bhanu Prakash 💻
Saúl Sáyago 💻	Dailin 💻

This project follows the all-contributors specification. Contributions of any kind are welcome!