A simple echo server for testing HTTP clients

In plain words

Echoserver is a testing tool that allows developers to verify HTTP client behavior by echoing back requests or generating custom server responses. Users can specify status codes, headers, and response bodies to simulate various scenarios, making it useful for testing error handling, header processing, and performance under different conditions. It simplifies the verification process for HTTP client implementations across multiple use cases.

written from the facts on this page · September 2026

From the sources

Generate the URL and receive the response you want.

In the maker’s words, at launch

I have developed an application called "echoserver" and I would like to share its details on Hacker News. The purpose of "echoserver" is to simplify the testing of HTTP clients. It functions as an echo server, meaning it responds to requests by echoing back the received data. This allows users to simulate various…

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