Beeceptor - Unblock yourself from API dependencies, and build & integrate with APIs fast. Beeceptor helps you build a mock Rest API in a few seconds.

Pneumatic - Pneumatic is an SaaS workflow management system designed to make business process management easy and accessible to everyone. Pneumatic emphasises ease of use, iterative development and continuous improvement of business processes.

MockServer - Easy mocking of any system you integrate with via HTTP or HTTPS.

windmill.dev - Company-wide apps and automations from minimal python scripts

Webhook.site - Instantly generate a free, unique URL and email address to test, inspect, and automate (with a visual workflow editor and scripts) incoming HTTP requests and emails.

Docker Hub - Docker Hub is a cloud-based registry service