Tumult
Tumult: A self-hosted platform for controlled, observable Kubernetes and multi-cloud experiments. Ranked #12 of 25 in Chaos Engineering Platforms by our editors (8.1/10); pricing: Open source; best for governed, observable self-hosted experiments.
At a glance
- Editor score8.1 / 10
- PricingOpen source
- Best forGoverned, observable self-hosted experiments
- Paid fromFree
- Kubernetes supportYes
- Facts checked20 Sep 2026
Where it wins
- Risk-tiered approvals with quorum, TTL, and content-hash pinning
- Kubernetes, multi-cloud, network, and system-fault experiment coverage
- OpenTelemetry traces, DuckDB analytics, and compliance reports
Where it doesn't
- Self-hosted deployment requires a static binary or Docker image
- Native experiment scheduling is not currently available
- Integrations are centered on OpenTelemetry, Jaeger, and SigNoz
Our verdict on Tumult
Tumult is an open-source chaos engineering platform for reliability, platform, and SRE teams. It provides web UI and CLI experiment authoring, with support for Kubernetes pods, deployments, nodes, and network policies; AWS, Azure, and GCP cloud fault plugins; database, container, network, and system-stress plugins; and network faults such as latency, packet loss, corruption, DNS disruption, and host partitioning. It runs as a self-hosted static binary or Docker image across web, macOS, Linux, and API environments.
Governance is the clearest differentiator. Risk-tiered approvals add quorum, TTL, and content-hash pinning, while emergency stop, a stop-all kill switch, rollback handling, and audit trails provide controls around experiment execution. Compliance reports and regulatory mappings extend the platform beyond fault injection, making Tumult a strong fit for teams that need experiments to follow defined approval and evidence processes. Organizations that prefer a managed service rather than self-hosted deployment should look elsewhere.
Observability is built into the workflow through OpenTelemetry traces and embedded DuckDB analytics, with integrations for Jaeger and SigNoz. The MCP server supports experiment execution and analytics queries for agent integrations. Tumult does not provide native experiment scheduling: its documented current approach uses cron or systemd timers to invoke the CLI, while native scheduling is planned. Choose Tumult for governed, inspectable experiments across Kubernetes, cloud, and network layers; consider an alternative if built-in scheduling is central to your operating model.
Questions about Tumult
What does Tumult run on? Web, macOS and Linux. It runs self-hosted.
What does Tumult integrate with? 3 integrations: OpenTelemetry, Jaeger and SigNoz.
Who is Tumult built for? Small businesses, mid-market companies and enterprises (our editorial estimate).
Your product? Our editors can test Tumult in depth and publish a review, labelled as paid · from $149/mo →
Tumult pricing
Tumult fact sheet
| Free plan | Not verified |
|---|---|
| Paid from | Free |
| Kubernetes support | Yes |
| Cloud fault injection | Yes |
| Network fault injection | Yes |
| Experiment scheduling | No |
| Deployment model | Self_hosted |
| Blast-radius controls | Yes |
| Deployment | Self-hosted |
| Platforms | Web, macOS, Linux |
| Compliance & security | SOC 2, ISO 27001, PCI DSS |
| Support | Docs |
| Built for | Small business, Mid-market, Enterprise (editorial estimate) |
| Integrations | 3 integrations: OpenTelemetry, Jaeger, SigNoz |
| Pricing | Open source |
| Website | tumult.rs |
| Facts checked | 20 Sep 2026 |
Tumult integrations
Tumult lists 3 integrations on its own site.
- OpenTelemetry
- Jaeger
- SigNoz
Alternatives to Tumult
- Chaos ToolkitBroad, low-cost multi-cloud chaos testing with declarative experiments and safeguards.9.3
- Chaos MeshA broad, self-hosted toolkit for controlled Kubernetes fault injection.9.1
- Harness Chaos EngineeringA free hybrid-cloud option with strong experiment controls and broad infrastructure coverage.9.0
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Reviewed by iTechGuides Editors · Editorial team · Updated Nov 2026
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