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

Survey Monkey - Create and publish online surveys in minutes, and view results graphically and in real time. SurveyMonkey provides free online questionnaire and survey 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.

Self Test by Ahead App - Receive anonymous & honest feedback on your social skills

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

Matter - Create a feedback-focused culture in Slack with Matter!