Side by side

Chaos Mesh vs Chaos Toolkit

Both stand on chaos engineering platforms. Which one you can start free with, which one lets you read the code, and what each costs once you pay.

Chaos Mesh

Free plan APISelf-hostedWeb

Chaos Mesh offers broad fault simulation and Kubernetes-native experiment controls. Operators should account for its privileged daemon default and verify compatibility with their Kubernetes version.

Visit Chaos Mesh

Chaos Toolkit provides a code-oriented way to define and run experiments, with a steady-state check that can halt an experiment before its method runs. Its standalone CLI is free, but users should note the stated Python support and CPython testing scope.

Visit Chaos Toolkit

The facts

	Chaos Mesh	Chaos Toolkit
Free plan	Yes	Yes
Open source	Not published	Yes
Runs on	API, Self-hosted, Web	API, Linux, Mac, Self-hosted, Web, Windows
Lowest paid plan	Free or on request	Free or on request
Plans published	1	1
Maker	Not published	Not published
Website	chaos-mesh.org	chaostoolkit.org
On chaos engineering platforms	#4 of 25	#1 of 25

Chaos Mesh: what it does well

Free and licensed under Apache License 2.0.
Supports recurring and serial or parallel experiments.
Dashboard includes a web interface and HTTP API.
RBAC is enabled by default.

What to know first

Chaos Daemon is privileged by default.
Kubernetes support depends on the release.
RemoteCluster is described as being in an early stage.
Dashboard data may be lost after reboot without persistent volumes.

Chaos Toolkit: what it does well

Free standalone CLI under Apache License 2.0.
Experiments can be stored as JSON or YAML.
Can be embedded in a CI/CD chain.
Includes a safety gate based on steady state.
Listed integrations include Kubernetes and major cloud services.

What to know first

Official Python support starts at version 3.8.
Tested only against CPython.
Extensions require the CLI and core library first.

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