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

Clearview - Easy-to-use tabbed style ebook reader, equipped with library shelf, supports popular ebook formats...

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

SolarWinds Backup - Modern server backup software

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.

Datto Siris - Datto Siris provides local and cloud virtualization.