webhooks.io
Webhooks.io is a webhook proxy and provider platform built to make webhooks reliable, scalable, and flexible for end users and application providers. It lets teams proxy all webhook traffic through one dependable service in less than five minutes, immediately gaining insight and dependability for requests. For webhook consumers, its Proxy Relay Service provides a reliable way to route webhook traffic with features such as data transformations, filtering, multiple destination endpoints, custom retry policies, request logs, full payload details, and delivery analytics. Users can subscribe to one webhook and send it to one or more destinations, define linear or exponential backoff policies per destination, and build recipes that make HTTP requests, filter based on payload data, trim payloads, or modify data before delivery. For SaaS providers, Webhooks.io offers a provider platform and client libraries that add a robust webhook engine to an application.
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FastHook
FastHook is a webhook infrastructure and event delivery platform built for developers and product teams that need a reliable way to receive, inspect, transform, route, and deliver webhook traffic. It acts as a programmable layer between incoming event sources and downstream destinations, making it easier to debug integrations, monitor event flow, and control how webhook data moves through a system.
The product lets teams create sources, destinations, and connections so they can ingest webhook requests, inspect payloads and metadata, apply routing or transformation logic, and forward events to the right services. It includes tooling for viewing requests and events, managing retries, tracking delivery outcomes, and understanding failures when integrations break. FastHook is designed to reduce the operational pain of webhook-based systems by giving teams better observability, replayability, and control over event processing.
It can be used for a variety of integration and automation
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Webhook.site
Webhook.site is a tool for testing, transforming, and automating web requests, webhooks, and emails through unique URLs and email addresses that show everything sent to them instantly. With Webhook.site, users receive a unique, random URL that can be used to test and debug webhooks and HTTP requests, inspect payloads, headers, query strings, and request details in real time, and replay items later when troubleshooting or reprocessing failed flows. It helps remove the frustration of building software and automations that communicate through webhook or email by making requests visible, persistent, and easier to understand. Webhook.site also supports Custom Actions, a graphical workflow editor that runs when a URL receives a request or email, allowing users to connect incompatible APIs, convert an HTTP request to an email or vice versa, transform, validate, and process requests, and build workflows that would otherwise require development work.
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Fiddler
Capture all HTTP(S) traffic between your computer and the Internet with Telerik Fiddler HTTP(S) proxy. Inspect traffic, set breakpoints, and fiddle with requests & responses. Fiddler Everywhere is a web debugging proxy for macOS, Windows, and Linux. Capture, inspect, monitor all HTTP(S) traffic between your computer and the Internet, mock requests, and diagnose network issues. Fiddler Everywhere can be used for any browser, application, process. Debug traffic from macOS, Windows, or Linux systems and iOS or Android mobile devices. Ensure the proper cookies, headers, and cache directives are transferred between the client and server. Supports any framework, including .NET, Java, Ruby, etc. Mock or modify requests and responses on any website. It’s a quick and easy way to change the request and responses to test websites without changing code. Use Fiddler Everywhere to log all HTTP/S traffic between your computer and the Internet.
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