Thunder Client is a lightweight REST API client extension for VS Code and JetBrains IDEs.
The tool addresses the need for a simple, focused API testing solution that keeps data local to the user's machine rather than relying on cloud storage. It provides a GUI-based interface for making REST requests, managing collections, and testing API responses without requiring scripts. The extension supports environment variables, Git synchronization for team collaboration, and includes an advanced command-line interface for running requests and collections from the terminal.
Developers should choose this tool if they want an API client that stays within their IDE and keeps all request data stored locally on their device. It suits teams that prefer Git-based collaboration over cloud platforms and developers who value simplicity and clean design over extensive feature complexity. The tool supports GraphQL alongside REST APIs and offers scriptless testing through a graphical interface rather than code-based assertions.
The project maintains active engagement with its user community through Discord and social media channels. Development includes regular feature additions and bug fixes tracked through the support repository. The tool has expanded beyond VS Code to support JetBrains IDEs, indicating ongoing platform diversification efforts.
