The app & CLI tool to load test your API endpoints.

Find concurrency & performance issues early and ship with more confidence. Clobbr is a developer tool that makes testing your API endpoints a breeze.

Powerful, yet simple and delightful user interface.

Make requests to multiple endpoints with ease, set up request timeouts, headers, payload and much more. Regardless if you are testing a REST, GraphQL or cloud function Clobbr has got you covered!

Explore result history and understand your API endpoints.

Delve into key stats such as standard deviation, percentiles and more. Understand how key statistics evolve over time and explore historical response timings using charts and tabular data.

Configure requests with a few clicks.

Easily configure verb (GET, PUT, POST etc.), set number of iterations, toggle between sequential and parallel requests or set request timeouts without any effort.

Set headers with ease.

Configure headers for each request using plain text or use scripts for dynamic headers, such as authorization tokens.

Share results with the press of a button.

Share results with your team to highlight potential issues. No data is stored on a server and sensitive info is stripped (optioanlly).

Take control of the UI.

Toggle between light or dark modes, customise app behaviour with advanced settings and clear historical data at any point in app settings.

All data stored locally. Your privacy comes first.

None of the request or result data is stored on a server. No account needed. No data is shared with third parties.

And tons more powerful features.

Get to know your APIs better with Clobbr. With a simple test, understand if you have bottlenecks and decide if certain endpoints should be split it up or cached.

Clobbr has been built with care and attention and will frequently give you hints, warnings and helpful tips to save your precious time. Download it free now and see for yourself!

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