Welcome
Thunder Client is a fast, privacy-first API client for VS Code and JetBrains IDEs. Requests and collections are stored locally and shared through your own Git repository, never a third-party cloud, so teams can collaborate and automate API testing in CI/CD without giving up control of their data.
The most popular API client on the VS Code Marketplace, with 7M+ installs.
Products
Main Features
IDE IntegrationWorks inside VS Code and JetBrains IDEs, so you can test APIs without switching tools.
Collections and EnvironmentsOrganize requests and manage variables across environments.
Scriptless TestingTest API responses through a GUI, with no code required.
Local StorageAll data is saved locally on your device.
Git SyncSave collections to your Git repository for team collaboration.
Advanced CLIRun requests and collections from the terminal and integrate them into CI/CD pipelines.
How to Use
- Install the extension from the VS Code Marketplace or the plugin from the JetBrains Marketplace .
- Watch the video tutorial to get started, or see Get Started for links to the key features.

Requirements
- VS Code
v1.101.0or later. - Node.js
v22.0.0or later.
Innovations
Thunder Client was the first to introduce:
API Client for VS CodeA GUI-based API client built into VS Code, so you can test APIs without leaving your editor.
100% Local StorageAn API client that keeps all data on your device, never in a third-party cloud.
Scriptless TestingWrite API tests through a GUI, with no scripting required.
Advanced CLIRun requests, collections, and cURL commands from the terminal, using the same project data as the extension.
Storage Location
By default, the VS Code extension stores request data in the following locations:
- Windows:
%APPDATA%\Code\User\globalStorage\rangav.vscode-thunder-client - macOS:
~/Library/Application Support/Code/User/globalStorage/rangav.vscode-thunder-client - Linux:
~/.config/Code/User/globalStorage/rangav.vscode-thunder-client - VS Code Server (Linux):
~/.vscode-server/data/User/globalStorage/rangav.vscode-thunder-client
Release Notes and Feedback
- See the release notes for the latest changes.
- Report bugs or request features on GitHub .
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