The best alternatives to RegViz are Regulex, Surge for Mac, and RegExr 2.0. If these 3 options don't work for you, we've listed a few more alternatives below.
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Surge is a network toolbox for power users and a high-performance HTTP/SOCKS5 proxy server. It is capable of intercepting and logging the summary of network traffics, and meanwhile transmitting the traffic to other proxy servers according to the flexible rule system. Multiple proxy protocols are supported including HTTP, HTTPS, SOCKS5, SOCK5 over TLS.
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