Shadowsocks is described as 'A fast tunnel proxy that helps you bypass firewalls' and is a popular Online Anonymity App in the Security & Privacy category. There are more than 100 alternatives to Shadowsocks for a variety of platforms, including Windows, Mac, Android, iPhone and Linux. The best alternative is Tor Browser, which is both free and Open Source. Other great apps like Shadowsocks are Tor (Free, Open Source), OpenVPN (Freemium, Open Source), ProtonVPN (Freemium, Open Source) and WireGuard (Free, Open Source).
The Tor software protects you by bouncing your communications around a distributed network of relays run by volunteers all around the world: it prevents somebody watching your Internet connection from learning what sites you visit, it prevents the sites you visit from learning...
Tor is free software and an open network that helps you defend against traffic analysis, a form of network surveillance that threatens personal freedom and privacy, confidential business activities and relationships, and state security.
Almost everyone thinks Tor is a great alternative to Shadowsocks.
WireGuard is an extremely simple yet fast and modern VPN that utilizes state-of-the-art cryptography. It aims to be faster, simpler, leaner, and more useful than IPSec, while avoiding the massive headache. It intends to be considerably more performant than OpenVPN.