The best alternatives to BetterViewer are Apple, Recall, and lightgallery. If these 3 options don't work for you, we've listed a few more alternatives below.
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AssemblyAI— Multilingual Speech-to-Text API with superhuman accuracy
Your new personal photo vault. We believe that photos are a true reflection of your life so you’ll want to keep them safe and private, storing them without any restrictions while retaining full ownership and privacy.
SuperDev Pro is a 14-in-1 browser extension 🧩 for web development that allows you to inspect, edit and refine any website right within the browser. Works on every website regardless of the frameworks, plugins, libraries, or themes used.
Paths is an extension for finding shortcuts for popular apps and websites. Paths provides an interface right in your browser to search for commands and shortcuts for your most used applications.