The 1.0.1 version of SpiderNetworkHelper for Mac was available to download on the developer's website when we last checked. We cannot confirm if there is a free download of this app available.
According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. The application relates to Internet & Network Tools. This free Mac app was originally created by wanglt.
From the developer:
SpiderNetworkHelper is a TCP/IP-based network debugging tool. It supports multiple modes, including TCP Client, TCP Server, UDP mode, and UDP Group. Also, it supports hexadecimal, ASCII mode to receive and send data. The tool allows you to open multiple modes and TCP/IP connections simultaneously.
You may want to check out more software for Mac, such as AquaEthereal, tn3270 or survlog, which might be similar to SpiderNetworkHelper.