Polly is a .NET resilience and transient-fault-handling library that allows developers to express policies such as Retry, Circuit Breaker, Timeout, Bulkhead Isolation, and Fallback in a fluent and thread-safe manner. From version 6.0.1, Polly targets .NET Standard 1.1 and 2.0+.

Resilience4j is a fault tolerance library designed for Java8 and functional programming

A curated list of Chaos Engineering resources.

Fault tolerance and resilience patterns for the JVM

Hands on labs and code to help you learn, measure, and build using architectural best practices.

Fault tolerance and resilience patterns for Go

Chaos Monkey for Spring Boot

Chaos engineering tool for simulating real-world distributed system failures

Simulate API failures, throttling, and chaos — all from your command line.

The Reactive Manifesto

Simmy is a chaos-engineering and fault-injection tool, integrating with the Polly resilience project for .NET

🚥 Traffic control for code.

The Infinit policy-based software-defined storage platform.

Clojure resilience library for flexible retry, circuit breaker and rate limiter

lunar.dev: Ground Control for 3rd Party APIs

Client-side response routing for Spring

Examples for the Manning "Vert.x in Action" book

App that simplifies building decision trees to model adverse scenarios

A library to improve the resilience of Go applications in an easy and flexible way

Go library to create resilient feedback loop/control controllers.