The best alternatives to Synth are Keywords Everywhere, Plutoview, and Giggl. If these 3 options don't work for you, we've listed a few more alternatives below.
What do you think of Synth?
AssemblyAI— Speech-to-Text API with superhuman accuracy
Plutoview is a shared browser solution designed to make remote research and Web-based collaboration effortless. Add up to 100 users to a single Web session, and have as many Web session open as there are group members.
Giggl is a new way to browse the web online with friends or teams in real time using virtual browsers. It’s perfect for watching movies, doing research, interacting with your favorite creators and much more, all in complete privacy and security.
tbx is a browser extension that lets you start shared browsing sessions. It’s made for remote times, when you need everyone on the same page. Literally.
Batch Links Opener is a free browser add-on that helps you open multiple URLs from websites and pages in one click. The extension enables you to manage, store, bookmark, and create shortcuts for multiple links quickly for researchers, developers and marketing.