Instead of Reliably
Reliably alternatives
Reliably gives teams a structured way to explore operational risks through Chaos Toolkit-based experiments. Its builder offers more than 300 actions, while imported JSON experiments, reusable templates, scheduled runs, scores, freshness indicators, timelines, and dashboards support ongoing review. Teams can execute through GitHub Actions, the CLI, Docker, Kubernetes jobs or cron jobs, or Reliably-managed runs. Pre-checks and safeguards can prevent or interrupt experiments when configured conditions fail. It supports Linux, macOS, Windows, web, and self-hosted deployment, with targets including major clouds, Kubernetes, Prometheus, and Spring.
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Chaos Toolkit
Free plan Open source APILinuxMac+3Developers defining chaos experiments as JSON or YAML — Chaos Toolkit is a code-oriented open-source toolkit with an Open API and CI/CD embedding, rather than Reliably’s managed experiment workspace.
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ChaosBlade
Free plan APILinuxMac+3Cloud-native teams testing varied resources and Kubernetes — ChaosBlade covers CPU, memory, network, disk, kernel, file, application, and Kubernetes scenarios through CLI, YAML, HTTP, or ChaosBlade-Box.
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Toxiproxy
Free plan APILinuxMac+2Network fault testing in development and CI — Toxiproxy specializes in manipulating TCP connections with latency, jitter, bandwidth, resets, timeouts, packet drops, and other network toxics.
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Krkn
Free plan APILinuxSelf-hosted+1Kubernetes resilience scenarios with SLO validation — Krkn focuses on Kubernetes failure injection, with more than 20 scenarios, Prometheus-based SLO checks, Cerberus health signals, and a browser dashboard.
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Chaos Mesh
Free plan APISelf-hostedWebCloud-native fault orchestration through Kubernetes — Chaos Mesh uses Kubernetes CustomResourceDefinitions, workflows, schedules, status checks, and a dashboard to manage faults across cloud and system layers.
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chaosd
Free plan APILinuxSelf-hostedPhysical-machine fault injection on Linux — chaosd targets physical or virtual machines with process, network, CPU, memory, disk, and host faults through CLI or HTTP service.
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FaultMesh
Free plan APISelf-hostedWebKubernetes resilience scoring and automated remediation — FaultMesh adds real-time anomaly detection, automatic remediation, six-dimension resilience scores, SLO error budgets, and game-day validation.
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Canonical Chaos Engineering Platform
Free plan LinuxSelf-hostedWeb - 9
LitmusChaos
Free plan APILinuxSelf-hosted+1 - 10
Chaos Monkey for Spring Boot
Free plan APISelf-hosted - 11
Krkn-AI
Free plan LinuxSelf-hosted - 12
KubeInvaders
Free plan LinuxMacSelf-hosted+1 - 13
PowerfulSeal
Free plan Self-hostedWeb - 14
Pumba
Free plan LinuxMac - 15
kube-monkey
Free plan Self-hosted - 16
Tumult
Free plan APILinuxMac+3 - 17
Gremlin
Free trial APILinuxSelf-hosted+2 - 18
AWS Fault Injection Service
Paid APILinuxMac+2 - 19
Harness Chaos Engineering
Free plan Web - 20
Steadybit
Free trial APILinuxSelf-hosted+2 - 21
khaos-monkey
Paid LinuxSelf-hosted - 22
Azure Chaos Studio
Paid Web5.0 Visit site - 23
Chaos Monkey
Paid Linux - 24 3.8 Visit site
Readers may prefer another tool for a fully free workflow, narrower Kubernetes or host-level fault injection, or experiment definitions managed directly as code. Reliably’s free plan allows one team member, 180 cloud execution minutes monthly, a 10-minute cloud execution cap, five custom experiments, and two weeks of retention; paid plans start at £40/mo. Compare those limits with each alternative’s fault coverage, experiment format, execution methods, deployment choices, safety controls, monitoring, and integrations. The right switch depends on whether you need a guided platform, a developer toolkit, or specialized infrastructure testing.
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