Clobbr
Easy API endpoint load testing without breaking the bank
Clobbr launched on April 29, 2023 with 444 votes, #34 of 4,853 launches that month and more than 95% of that year's launches. The site was still online in September 2026, 3 years on.
In plain words
Clobbr is a developer tool for load testing API endpoints across REST, GraphQL, and cloud functions. It allows users to send multiple requests in sequence or parallel to evaluate performance under stress. The tool is designed for developers who need to assess how their APIs handle concurrent traffic without requiring significant investment.
written from the facts on this page · September 2026
From the sources
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!
Clobbr is a fast, local-first API load testing tool for macOS, Windows, and CLI. Lifetime license, no subscription, no account, GraphQL + REST supported.
Run parallel or sequential load tests in seconds. Understand p50, p95, p99 with interactive charts, not spreadsheets. Ship faster, with fewer regressions. From request to result in seconds, with all the depth you need when the happy path breaks. No spreadsheets, no surprises. REST, GraphQL, cloud functions. Point Clobbr at an endpoint, choose the verb, and fire off thousands of requests with a click. Every method is supported, including PATCH and DELETE. Skip the spreadsheets. Clobbr surfaces standard deviation, percentiles, mean, min and max for every run, and lets you track how those numbers drift over time. Pick a verb, set iteration count, toggle sequential or parallel execution,…from clobbr.app
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