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.

Hookdeck - Hookdeck makes it simple to build and deploy reliable, testable, and debuggable applications that rely on webhooks.

Slack It - A bookmarklet to share links in Slack with one click

Webhooks by Zapier - Move Your Data Instantly With Webhooks

Threado - Threado is the command centre for your online community. Measure engagement, get detailed insights and automate your operational tasks.

Beau - No-code platform to build, automate customers' workflows, step-by-step