Open Source Alternatives to Webhook.site

A webhook platform that generates unique URLs and email addresses to capture and inspect incoming web requests and emails in real time. The tool allows developers to monitor request headers, query strings, and content without writing backend code. It includes capabilities for transforming data, resending requests to other destinations, and creating automated workflows through a drag and drop interface or AI. The platform supports native integrations with services such as Google Sheets, Slack, and S3, and offers features like custom domains, cronjobs, and SSO for organizational use. It is deployed as a cloud service and provides a CLI for tunneling requests to local targets. Users can manage a history of requests and set up schedules to run workflows every minute, day, or week.

Whether you want to cut software costs or escape vendor lock-in, these open source alternatives to Webhook.site give you an option you fully own. You can self-host them, so your data stays on infrastructure you control. This page lists 1 open source alternative to Webhook.site. The most popular is WebHook Tester. It uses the MIT license and ships an official Docker image.