Harness Chaos Engineering vs Reliably

Harness Chaos Engineering9.0Visit Reliably8.7Visit

Higher score Harness Chaos Engineering #3 in Chaos Engineering Platforms 9.0/10 Free plan Free plan✓ 5 of 5 features Visit Harness

vs

Reliably #6 in Chaos Engineering Platforms 8.7/10 Free plan Free plan✓ 5 of 5 features Visit Reliably

• Harness Chaos Engineering fits best

  Teams wanting free hybrid cloud coverage

• Reliably fits best

  Teams wanting a guided chaos management layer

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Side by side

Feature	Harness Chaos Engineering 9.0/10 Visit ↗	Reliably 8.7/10 Visit ↗
At a glance
Editor score	9.0	8.7
Ranking	#3 in Chaos Engineering Platforms	#6 in Chaos Engineering Platforms
Best for	Teams wanting free hybrid cloud coverage	Teams wanting a guided chaos management layer
Pricing model	Free plan + paid	Free plan + paid
Starting price	—	£40/mo
Free plan	✓	✓
Free trial	—	—
Deployment	Cloud, Self-hosted	Cloud, Self-hosted
Platforms	Web	Web, Windows, Linux
Support	Community, Docs	Email, Docs
Integrations	9 integrations	3 integrations
Built for	Small business, Mid-market, Enterprise	Small business, Mid-market, Enterprise
Features Harness Chaos Engineering 5/5 · Reliably 5/5
Kubernetes support	✓	✓
Cloud fault injection	✓	✓
Network fault injection	✓	✓
Experiment scheduling	✓	✓
Blast-radius controls	✓	✓
Specs
Deployment model	Hybrid	Hybrid
Our review
Pros	Free plan covers Kubernetes, AWS, Azure, GCP, VMware, and bare metal Blast-radius limits, approval gates, probes, and scheduled experiments CI/CD integration plus prebuilt faults and experiment templates	More than 300 actions and probes for experiment design Runs through cloud, GitHub Actions, CLI, Docker, and Kubernetes Free plan includes unlimited custom and GitHub executions
Cons	Paid-plan pricing requires contacting Harness Free Plan includes community support rather than standard or premier support Chaos infrastructure is deployed in the target Kubernetes environment	Free plan is limited to one team member Free plan includes only five custom experiments Start limits cloud execution to 300 minutes per month
Our verdict	Harness Chaos Engineering is a resilience-testing product for SRE, platform, QA, and engineering teams. It injects controlled faults into Kubernetes workloads, cloud resources, infrastructure, and network paths, then evaluates behavior… Read the review →	Reliably is a resilience engineering platform for software and operations teams that need to plan, run, schedule, and review Chaos Toolkit experiments. Its experiment builder, reusable templates, JSON import, execution journals, timelines,… Read the review →

Strengths and trade-offs

• Harness Chaos Engineering — where it wins

  • Free plan covers Kubernetes, AWS, Azure, GCP, VMware, and bare metal
  • Blast-radius limits, approval gates, probes, and scheduled experiments
  • CI/CD integration plus prebuilt faults and experiment templates

  Where it doesn't

  • Paid-plan pricing requires contacting Harness
  • Free Plan includes community support rather than standard or premier support
  • Chaos infrastructure is deployed in the target Kubernetes environment

• Reliably — where it wins

  • More than 300 actions and probes for experiment design
  • Runs through cloud, GitHub Actions, CLI, Docker, and Kubernetes
  • Free plan includes unlimited custom and GitHub executions

  Where it doesn't

  • Free plan is limited to one team member
  • Free plan includes only five custom experiments
  • Start limits cloud execution to 300 minutes per month

• Harness Chaos Engineering9.0/10 · Free plan

  A free hybrid-cloud option with strong experiment controls and broad infrastructure coverage.

  Visit HarnessFull verdict →
• Reliably8.7/10 · Free plan

  A guided chaos management layer with broad execution options and a free entry tier.

  Visit ReliablyFull verdict →