Test HTTP webhooks with this handy tool that displays requests
...The app was built with Laravel for the API and Angular.js for the frontend SPA. Transforming Webhooks into other formats, and re-sending them to different systems. Send Webhooks to a server that’s behind a firewall or private subnet. Connect different APIs that aren’t compatible. Building contact forms that send emails.
Auto Proxy Filter Test (APFT) automates the testing of safe and unsafe URLs against a content filtering proxy (such as Dansguardian) and helps prevent regressions. APFT is useful to people who are designing filter rules.