HTTP Headers allows you to quickly see the HTTP header information for the current URL.
Cost / License
- Free
- Proprietary
Application types
Alerts
- Warning
Platforms
- Mac
- Windows
- Linux
- Google Chrome



Requestly is described as 'Lightweight proxy available as a browser extension & desktop app to intercept & modify network requests. Using Requestly you can Modify Headers, Redirect Url, Mock API response, Delay/Throttle requests, etc' and is a http(s) debugger in the development category. There are more than 25 alternatives to Requestly for a variety of platforms, including Mac, Windows, Linux, Google Chrome and Web-based apps. The best Requestly alternative is Postman, which is free. Other great apps like Requestly are Fiddler, Yaak, mitmproxy and Hoppscotch.
HTTP Headers allows you to quickly see the HTTP header information for the current URL.



ReqRes is an open-source, high-performance, modern native web debugging proxy for macOS. It lets you capture, inspect, modify, and intercept HTTP(S) traffic in real time.




Intercept, modify, and mock HTTP requests with ease. A powerful developer tool to streamline your API development and testing workflow.

Httpiness is aimed to be a simple, straightforward HTTP client which minimizes time to configure, send, reconfigure and resend requests in order to maximize development efficiency.


HttpWatch is an HTTP viewer and debugger that integrates with IE and Firefox to provide seamless HTTP and HTTPS monitoring without leaving the browser window. It's available as a free edition and a PRO version that cost money and has additional features.

Lama2 defines the human-friendly l2 syntax and CLI for describing and executing APIs. Store your APIs in plain-text files. Collaborate with team using version control (say, git). Run Lama2 directly from VSCode extension. Think of Lama2 as Markdown for APIs.


RequesterX is a free desktop HTTP client for API testing and development. Organize requests into nested collections, use environment variables for easy context switching, generate code snippets in 13 languages, and keep everything stored locally — no account required.

Routebase keeps your API's design, docs, mock servers, contract tests and monitoring in one living OpenAPI spec so they can't drift apart.




Protty is an HTTP proxy written in Go that redirects, intercepts, and modifies both requests to a remote host and their corresponding responses. The proxy intercepts and processes the requests before forwarding them to the desired host, and then changed the responses and sends...

Gotcha HTTP Client is a lightweight http client that allows you to make requests and inspect responses.



