Chapar
Fast, secure API testing tool for developers with HTTP/gRPC support
What is Chapar? Complete Overview
Chapar is an upcoming native API testing tool built with Go, designed to simplify and expedite the testing process for developers. Currently in its early beta phase, Chapar offers a user-friendly experience with support for both HTTP and gRPC protocols. It is open-source, BSD-3-Clause licensed, and emphasizes privacy, security, and developer-friendly features. Chapar is ideal for developers looking for a fast, efficient, and secure tool to test their APIs, with additional features like Python SDK for scripting, tunnel support for development environments, and configuration as code for easy sharing and version control.
Chapar Interface & Screenshots

Chapar Official screenshot of the tool interface
What Can Chapar Do? Key Features
Fast Performance
Built with Go, Chapar is designed for speed and efficiency, making it one of the fastest API testing tools available. Its lightweight architecture ensures quick response times and minimal resource usage.
Developer-Friendly UI
Chapar features a clean and intuitive user interface, making it easy for developers to navigate and use. The tool is designed with simplicity in mind, reducing the learning curve for new users.
Secure by Default
Chapar prioritizes your privacy and security. All data remains private, and the tool is designed with security best practices in mind, ensuring your API tests are safe from vulnerabilities.
gRPC Support
Chapar supports both HTTP and gRPC protocols, making it versatile for testing various types of APIs. Its gRPC support is particularly useful for developers working with microservices.
Python SDK
Chapar allows you to write pre and post-request scripts using Python, offering flexibility and ease of use. This feature is ideal for automating complex testing scenarios.
Tunnel Support
Chapar can create secure tunnels to your development environment, which is especially useful for testing gRPC methods. This feature simplifies the process of testing APIs in isolated or local environments.
Config as Code
Chapar keeps your configuration as code, making it easy to share, version control, and collaborate with team members. This approach ensures consistency and reproducibility in your testing workflows.
Open Source
Chapar is open-source and BSD-3-Clause licensed, meaning it's free to use, modify, and distribute. The open-source nature encourages community contributions and transparency.
Growing Community
Chapar has a growing community of developers who contribute to its development and provide support. This community-driven approach ensures continuous improvement and accessibility.
Best Chapar Use Cases & Applications
Testing Microservices
Chapar's gRPC support makes it ideal for testing microservices architectures. Developers can quickly validate API endpoints and ensure seamless communication between services.
Automated Testing
With Python SDK support, Chapar can be integrated into CI/CD pipelines for automated API testing. This ensures consistent and reliable testing across development stages.
Local Development
Chapar's tunnel support allows developers to test APIs in local or isolated environments securely. This is particularly useful for debugging and development purposes.
How to Use Chapar: Step-by-Step Guide
Download and install Chapar from the official GitHub repository. Ensure you have the necessary dependencies, such as Go, installed on your system.
Launch Chapar and configure your API endpoints. You can specify HTTP or gRPC protocols depending on your testing needs.
Use the Python SDK to write pre and post-request scripts if needed. This step is optional but useful for automating complex test scenarios.
Run your API tests and analyze the results. Chapar provides detailed feedback on response times, status codes, and other relevant metrics.
Save your configurations as code for future use or share them with your team. Chapar's version control integration makes collaboration seamless.
Chapar Pros and Cons: Honest Review
Pros
Considerations
Is Chapar Worth It? FAQ & Reviews
Yes, Chapar is completely free and open-source under the BSD-3-Clause license. You can use, modify, and distribute it without any cost.
Yes, Chapar supports both HTTP and gRPC protocols, making it versatile for testing various types of APIs.
Yes, Chapar's Python SDK allows you to write scripts for automated testing, making it suitable for integration into CI/CD pipelines.
Yes, Chapar is designed with security in mind. It ensures that your data remains private and secure during API testing.
You can contribute to Chapar by visiting its GitHub repository, submitting issues, or creating pull requests. The project welcomes community contributions.