3 best Are.na alternatives in 2021

Are.na is a bookmark manager with the following features: ios app, folder sharing, android app, dark mode.

Here are some great alternatives.

Favim has inspiring images from the web and offers tags for filtering.
Pinterest is the most popular image bookmarking website and has powerful collaboration features.
Save bills itself as the platform for creative minds. It is essentially an image-based bookmark manager that displays your images as mood boards. It has mobile apps.