Ambassador vs Insomnia REST Client: What are the differences?
Ambassador: Open source, Kubernetes-native API Gateway for Microservices built on Envoy. Map services to arbitrary URLs in a single, declarative YAML file. Configure routes with CORS support, circuit breakers, timeouts, and more. Replace your Kubernetes ingress controller. Route gRPC, WebSockets, or HTTP; Insomnia REST Client: The most intuitive cross-platform REST API Client 😴. Insomnia is a powerful REST API Client with cookie management, environment variables, code generation, and authentication for Mac, Window, and Linux.
Ambassador and Insomnia REST Client can be primarily classified as "API" tools.
Ambassador and Insomnia REST Client are both open source tools. It seems that Insomnia REST Client with 10.2K GitHub stars and 590 forks on GitHub has more adoption than Ambassador with 2.03K GitHub stars and 288 GitHub forks.
Postman supports automation and organization in a way that Insomnia just doesn't. Admittedly, Insomnia makes it slightly easy to query the data that you get back (in a very MongoDB-esque query language) but Postman sets you up to develop the code that you would use in development/testing right in the editor.