Best Chaos Engineering Platforms in 2026
Updated
In short: Reliably is ranked #1 of 23 as of 4 October 2026, ahead of Chaos Toolkit and ChaosBlade. The best-ranked option with a free plan is Chaos Toolkit. The lowest first paid tier on this page is Reliably at £40/mo.
When you need to examine how systems behave under failure, chaos engineering platforms provide options for shaping and scheduling fault-injection experiments. Compare blast-radius controls with cloud and network fault injection to see which experiment controls are specified. Kubernetes support, experiment scheduling, and deployment model add context for the environments and workflows involved; free-plan availability and paid-from pricing help frame cost. Reliably, Chaos Toolkit, and ChaosBlade are among the entries to weigh. Consider the fault types and safeguards relevant to your systems, then compare the listed platform details against those needs.
23 chaos engineering platforms ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
Chaos Engineering Platforms, ranked on how quickly a newcomer can get going. 8 of the 23 on this page can be tried for free.
- 1 ReliablyPaid from £40/mo
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: yes
- 2 Chaos ToolkitFree plan
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: yes
- 3 ChaosBladeFree plan
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: yes
- 4 Chaos MeshFree plan
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: not on record
- 5 Gremlin
- Free to practise on: not on record
- Free trial: yes
- Well documented: yes
- Runs where you work: yes
- 6 Steadybit
- Free to practise on: not on record
- Free trial: yes
- Well documented: yes
- Runs where you work: yes
- 7 PowerfulSealFree plan
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: not on record
- 8 AWS Fault Injection Service
- Free to practise on: not on record
- Free trial: not on record
- Well documented: yes
- Runs where you work: yes
- 9 KubeInvaders
- Free to practise on: not on record
- Free trial: not on record
- Well documented: yes
- Runs where you work: not on record
- 10 Toxiproxy
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: yes
- 11 Tumult
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: yes
- 12 Canonical Chaos Engineering Platform
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
- 13 chaosd
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
- 14 Chaos Monkey for Spring Boot
- Free to practise on: not on record
- Free trial: not on record
- Well documented: yes
- Runs where you work: not on record
- 15 FaultMesh
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
- 16 Krkn
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
- 17 LitmusChaosFree plan
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
- 18 Pumba
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
- 19 Zuul
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
- 20 khaos-monkey
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
- 21 Krkn-AI
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
- 22 kube-monkey
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
- 23 Tencent Cloud API Gateway
- Free to practise on: not on record
- Free trial: not on record
- Well documented: yes
- Runs where you work: not on record
Compare all 23 in a table
| # | Platform | Score | Free plan | From | Free plan | Paid from | Kubernetes support | Cloud fault injection |
|---|---|---|---|---|---|---|---|---|
| 1 | Reliably | 7.4 | Free plan | £40/mo | Yes | — | Yes | Yes |
| 2 | Chaos Toolkit | 7.3 | Free plan | Free | Yes | — | Yes | Yes |
| 3 | ChaosBlade | 7.3 | Free plan | Free | Yes | — | Yes | Yes |
| 4 | Chaos Mesh | 7.2 | Free plan | Free | Yes | — | Yes | Yes |
| 5 | Gremlin | 6.9 | No | — | No | — | Yes | Yes |
| 6 | Steadybit | 6.9 | No | — | No | — | Yes | Yes |
| 7 | PowerfulSeal | 6.8 | Free plan | Free | Yes | — | Yes | Yes |
| 8 | AWS Fault Injection Service | 6.3 | No | — | — | — | Yes | Yes |
| 9 | KubeInvaders | 6.1 | No | — | — | — | Yes | — |
| 10 | Toxiproxy | 6.1 | No | — | Yes | — | No | No |
| 11 | Tumult | 6.0 | No | — | — | — | Yes | Yes |
| 12 | Canonical Chaos Engineering Platform | 5.9 | No | — | — | — | Yes | No |
| 13 | chaosd | 5.9 | No | — | Yes | — | No | No |
| 14 | Chaos Monkey for Spring Boot | 5.8 | No | — | Yes | — | — | No |
| 15 | FaultMesh | 5.8 | No | — | Yes | 49 /mo | Yes | — |
| 16 | Krkn | 5.8 | No | — | Yes | — | Yes | Yes |
| 17 | LitmusChaos | 5.8 | Free plan | Free | — | — | Yes | Yes |
| 18 | Pumba | 5.8 | No | — | — | — | Yes | No |
| 19 | Zuul | 5.8 | No | — | — | — | Yes | Yes |
| 20 | khaos-monkey | 5.7 | No | — | — | — | Yes | No |
| 21 | Krkn-AI | 5.7 | No | — | — | — | Yes | Yes |
| 22 | kube-monkey | 5.7 | No | — | — | — | Yes | No |
| 23 | Tencent Cloud API Gateway | 5.7 | No | — | No | — | Yes | Yes |
Is your platform on this list?
Numbered spots on this list can be sponsored, and a sponsored row is labelled as paid.
Questions about this list
Which chaos engineering platform is ranked first on The Geeks Club?
Reliably is ranked #1 of 23 with a score of 7.4. Chaos Toolkit is second and ChaosBlade third.
How many of these have a free plan?
6 of the 23 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, Reliably has the lowest first paid tier we found: £40/mo.
How is this list ranked?
Ranked on how quickly a newcomer can get going: documentation depth, a free tier or trial, and the platforms it runs on.