WireMock : Free and Open Source tool for building mock APIs. Create stable development environments, isolate yourself from flakey 3rd parties and simulate APIs t...
Grafana k6 : Grafana k6 is an open-source, developer-friendly, and extensible load testing tool. k6 allows you to prevent performance issues and proactively improv...
Motty : Motty provides the simpler way to test your client services.
It is a web application which gives you ability to create your own custom responses.
So y...
Postal : Postal is a complete and fully featured mail server for use by websites & web servers. Think Sendgrid, Mailgun or Postmark but open source and ready f...
gRPC : gRPC is a modern, open source remote procedure call (RPC) framework that can run anywhere. It enables client and server applications to communicate tr...
Mockoon is the easiest and quickest way to design and run mock APIs. No remote deployment, no account required, free and open-source.