sloptic is an open-source tool that performs black-box testing on web applications by deploying them and sending HTTP probes. It calculates a deduction-only "slop score" (lower is better) to grade resilience and reliability. It is designed for developers and teams evaluating the robustness of their HTTP-based services without needing internal access.
In the Developer Tools space, sloptic takes a focused approach. It focuses on quantifying the resilience and reliability of web applications through automated black-box HTTP testing and scoring. It is built as an open-source project for developers. sloptic is open source under the Apache-2.0 license. It runs on the command line, and it can be self-hosted.
sloptic first shipped in 2026. Development happens publicly on GitHub with 233 commits in the last 90 days. Among its 4 catalogued features are HTTP probing, resilience scoring, and black-box testing.
Summary written by a language model from the project’s public pages.
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