Based on our record, WireMock Cloud seems to be more popular. It has been mentiond 1 time since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Both of these tools you would have to run yourself. If you wanted a hosted solution you can use for example Mocklab which is based on Wiremock. Source: almost 3 years ago
Mockable - Quickly define some REST or SOAP endpoints and have them return json/xml (dummy) data.
Heroku - Agile deployment platform for Ruby, Node.js, Clojure, Java, Python, and Scala. Setup takes only minutes and deploys are instant through git. Leave tedious server maintenance to Heroku and focus on your code.
Beeceptor - Unblock yourself from API dependencies, and build & integrate with APIs fast. Beeceptor helps you build a mock Rest API in a few seconds.
Back4App - Low code backend to build apps faster and scale easily.
Postman - The Collaboration Platform for API Development
Google App Engine - A powerful platform to build web and mobile apps that scale automatically.