Clobbr is a developer tool that allows you to test your api endpoints to see how well they perform under multiple requests (clobber your apis!), in sequence or parallel.

Regardless if you're testing a REST, GraphQL or cloud function Clobbr has got you covered!


Powerful, yet simple and delightful user interface.
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• Make requests to multiple endpoints with ease.
• Set up request timeouts, headers, payload and much more
• Explore results as a beautiful list, summarizing your settings
• Analyse charts with response times and easily re-run tests
• Delve into key stats such as standard deviation, percentiles and more



Configure requests.
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• Easily configure verb (GET, PUT, POST etc.)
• Set number of iterations
• Toggle between http/s with ease



Send data with a request.
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• Set data in the built-in JSON editor
• Include in POST, PUT etc requests
• Save data settings between runs



Set headers with ease.
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• Configure headers for each request
• Use scripts to get/set dynamic headers
• Save header settings between runs



Take control of the UI.
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• Toggle between light or dark modes
• Clear data with ease
• Customise app behaviour with advanced settings



All data stored locally. Your privacy comes first.
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• None of the request or result data is stored on a server
• No account needed
• No tracking whatsoever