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Open-source chaos and resilience tools: 10 compared

Fault injection and resilience testing tools.

10 tools are listed here, 1 of them with this as a secondary category. Each one is open source under an OSI-approved license and meets the inclusion rules. The table is sorted by GitHub stars, descending, on the fetch date. Select a column heading to sort by another column.

Metrics as of , from the GitHub or GitLab API of each repository. Refreshed monthly.

Chaos and resilience tools. Sorted by GitHub stars, descending. Select a column heading to change the sort.
Chaos Monkey17,14512025-01-061v2.1.32024-10-031Apache-2.0Goinactive
Toxiproxy12,35612025-03-181v2.12.02026-08-251MITGoactive
Chaos Mesh7,91112026-08-181v2.8.42026-09-061Apache-2.0Goactive
ChaosBlade6,52112026-09-211blade-ai-v0.7.22026-07-281Apache-2.0Pythonactive
LitmusChaos5,61912026-09-1713.32.02026-09-221Apache-2.0Goactive
Pumba3,17112026-08-2311.2.12026-08-271Apache-2.0Goactive
kube-monkey3,08012026-09-201v0.7.02026-09-201Apache-2.0Goactive
Hoverfly2,52212026-09-211v1.12.152026-09-211Apache-2.0Goactive
Chaos Toolkit2,02812026-08-0811.20.02026-08-091Apache-2.0Pythonactive
Krkn50312026-09-031v5.2.92026-09-221Apache-2.0Pythonactive

1 Fetched from the GitHub or GitLab API on . Hover a value for its own date.

Comparisons in this category

Guide

Open-source chaos engineering tools: how the list is sorted and what each covers