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Plunger icon

Plunger

Plunger is a small, native desktop app for checking one API endpoint: paste a URL or a curl command, press Send, and read the response as a collapsible JSON tree. There is no account, no cloud and no telemetry, and no browser CORS limits, so it reaches localhost and intranet...

Plunger screenshot 1

Cost / License

  • Free
  • Open Source (MIT)

Application type

Platforms

  • Windows
  • Linux
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Features

Properties

  1.  Lightweight

Features

  1.  Ad-free
  2.  No registration required
  3.  Portable
  4.  Command line interface
  5.  Dark Mode
  6.  Works Offline
  7.  API Testing
  8.  Model Context Protocol (MCP) Support
  9.  Import Curl commands

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AlternativeTo Categories

Development, OS & Utilities, AI Tools & Services

GitHub repository

  •  9 Stars
  •  3 Forks
  •  30 Open Issues
  •   Updated  
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Plunger was added to AlternativeTo by metamug on and this page was last updated .

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Official Links

AppStores & Other Links

Download from Microsoft Store

What is Plunger?

Plunger is a small, native desktop app for checking one API endpoint: paste a URL or a curl command, press Send, and read the response as a collapsible JSON tree. There is no account, no cloud and no telemetry, and no browser CORS limits, so it reaches localhost and intranet APIs. It imports curl commands and HAR files, supports variables with secrets kept off disk, multipart file uploads, response search, and a local request history. The same exe is also a command-line client and an MCP server, so an AI agent can send requests through it. Open source (MIT). I am the developer.