👽 Open source API development ecosystem - https://hoppscotch.io
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Open source API development ecosystem

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Built with by contributors

Hoppscotch Hoppscotch


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Lightweight: Crafted with minimalistic UI design.

Fast: Send requests and get/copy responses in real-time.

HTTP Methods

  • GET - Requests retrieve resource information
  • POST - The server creates a new entry in a database
  • PUT - Updates an existing resource
  • PATCH - Very similar to PUT but makes a partial update on a resource
  • DELETE - Deletes resource or related component
  • HEAD - Retrieve response headers identical to those of a GET request, but without the response body.
  • CONNECT - Establishes a tunnel to the server identified by the target resource
  • OPTIONS - Describe the communication options for the target resource
  • TRACE - Performs a message loop-back test along the path to the target resource
  • <custom> - Some APIs use custom request methods such as LIST. Type in your custom methods.

Make it yours: Customizable combinations for background, foreground, and accent colors customize now.


  • Choose a theme: System (default), Light, Dark, and Black
  • Choose accent color: Green (default), Teal, Blue, Indigo, Purple, Yellow, Orange, Red, and Pink
  • Distraction-free Zen mode

Customized themes are synced with cloud / local session

PWA: Install as a PWA on your device.

  • Instant loading with Service Workers
  • Offline support
  • Low RAM/memory and CPU usage
  • Add to Home Screen
  • Desktop PWA

Request: Retrieve response from endpoint instantly.

  1. Choose method
  2. Enter URL
  3. Send
  • Copy/share public "Share URL"
  • Generate/copy request code snippets for 10+ languages and frameworks
  • Import cURL
  • Label requests

WebSocket: Establish full-duplex communication channels over a single TCP connection.

Server-Sent Events: Receive a stream of updates from a server over an HTTP connection without resorting to polling.

Socket.IO: Send and Receive data with SocketIO server.

MQTT: Subscribe and Publish to topics of an MQTT Broker.

GraphQL: GraphQL is a query language for APIs and a runtime for fulfilling those queries with your existing data.

  • Set endpoint and get schema
  • Multi-column docs
  • Set custom request headers
  • Query schema
  • Get query response

Authorization: Allows to identify the end-user.

  • None
  • Basic
  • Bearer Token
  • OAuth 2.0
  • OIDC Access Token/PKCE

Headers: Describes the format the body of your request is being sent as.

Parameters: Use request parameters to set varying parts in simulated requests.

Request Body: Used to send and receive data via the REST API.

  • Set Content Type
  • FormData, JSON, and many more
  • Toggle between key-value and RAW input parameter list

Response: Contains the status line, headers, and the message/response body.

  • Copy response to clipboard
  • Download response as a file
  • View response headers
  • View raw and preview of HTML, image, JSON, XML responses

History: Request entries are synced with cloud / local session storage to restore with a single click.

Collections: Keep your API requests organized with collections and folders. Reuse them with a single click.

  • Unlimited collections, folders, and requests
  • Nested folders
  • Export and import as a file or GitHub gist

Collections are synced with cloud / local session storage

Proxy: Enable Proxy Mode from Settings to access blocked APIs.

  • Hide your IP address
  • Fixes CORS (Cross-Origin Resource Sharing) issues
  • Access APIs served in non-HTTPS (http://) endpoints
  • Use your Proxy URL

Official proxy server is hosted by Hoppscotch - GitHub - Privacy Policy

Pre-Request Scripts : Snippets of code associated with a request that is executed before the request is sent.

  • Set environment variables
  • Include timestamp in the request headers
  • Send a random alphanumeric string in the URL parameters
  • Any JavaScript functions

API Documentation: Create and share dynamic API documentation easily, quickly.

  1. Add your requests to Collections and Folders
  2. Export Collections and easily share your APIs with the rest of your team
  3. Import Collections and Generate Documentation on-the-go

Keyboard Shortcuts: Optimized for efficiency.

Read our documentation on Keyboard Shortcuts

i18n: Experience the app in your language.

Help us to translate Hoppscotch. Please read TRANSLATIONS for details on our CODE OF CONDUCT, and the process for submitting pull requests to us.

Add-ons: Official add-ons for hoppscotch.

  • Proxy - A simple proxy server created for Hoppscotch

  • CLI - A CLI solution for Hoppscotch

  • Browser Extensions - Browser extensions that simplifies access to Hoppscotch

    Firefox Firefox  |  Chrome Chrome

    Extensions fixes CORS issues.

  • Hopp-Doc-Gen - An API doc generator CLI for Hoppscotch

Add-ons are developed and maintained under Hoppscotch Organization.

Auth + Sync: Sign in and sync your data in real-time.

Sign in with

  • GitHub
  • Google
  • Microsoft
  • Email

Synchronize your data

  • History
  • Collections
  • Environments
  • Settings

Post-Request Tests : Write tests associated with a request that is executed after the request's response.

  • Check the status code as an integer
  • Filter response headers
  • Parse the response data
  • Set environment variables
  • Write JavaScript code

Environments : Environment variables allow you to store and reuse values in your requests and scripts.

  • Unlimited environments and variables
  • Initialize through the pre-request script
  • Export as / import from GitHub gist
  • By storing a value in a variable, you can reference it throughout your request section
  • If you need to update the value, you only have to change it in one place
  • Using variables increases your ability to work efficiently and minimizes the likelihood of error

Teams : Helps you collaborate across your team to design, develop, and test APIs faster.

  • Unlimited teams
  • Unlimited shared collections
  • Unlimited team members
  • Role-based access control
  • Cloud sync
  • Multiple devices

Bulk Edit: Edit key-value pairs in bulk.

  • Entries are separated by newline
  • Keys and values are separated by :
  • Prepend # to any row you want to add but keep disabled

For more features, please read our documentation.




  1. Provide your API endpoint in the URL field
  2. Click "Send" to simulate the request
  3. View the response

Built with


  1. Update .env.example file found in the root of repository with your own keys and rename it to .env.

Sample keys only work with the production build.

Browser-based development environment

Local development environment

  1. Clone this repo with git.
  2. Install pnpm using npm by running npm install -g pnpm.
  3. Install dependencies by running pnpm install within the directory that you cloned (probably hoppscotch).
  4. Start the development server with pnpm run dev.
  5. Open the development site by going to http://localhost:3000 in your browser.

Docker compose

  1. Clone this repo with git.
  2. Run docker-compose up within the directory that you cloned (probably hoppscotch).
  3. Open the development site by going to http://localhost:3000 in your browser.


Official container   hoppscotch/hoppscotch

docker run --rm --name hoppscotch -p 3000:3000 hoppscotch/hoppscotch:latest


  1. Clone this repo with git.
  2. Install pnpm using npm by running npm install -g pnpm.
  3. Install dependencies by running pnpm install within the directory that you cloned (probably hoppscotch).
  4. Update .env.example file found in the root of repository with your own keys and rename it to .env.
  5. Build the release files with pnpm run generate.
  6. Find the built project in packages/hoppscotch-web/dist. Host these files on any static hosting servers.


Please contribute using GitHub Flow. Create a branch, add commits, and open a pull request.

Please read CONTRIBUTING for details on our CODE OF CONDUCT, and the process for submitting pull requests to us.

Continuous Integration

We use GitHub Actions for continuous integration. Check out our build workflows.


See the CHANGELOG file for details.


This project exists thanks to all the people who contribute contribute.


This project is licensed under the MIT License - see the LICENSE file for details.

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