There are many alternatives to Google Keep for Mac if you are looking for a replacement. The best Mac alternative is NoteLedge - Creative Notebook. It's not free, so if you're looking for a free alternative, you could try Joplin or Standard Notes. If that doesn't suit you, our users have ranked more than 100 alternatives to Google Keep and loads of them are available for Mac so hopefully you can find a suitable replacement. Other interesting Mac alternatives to Google Keep are Obsidian (Free Personal), Microsoft OneNote (Freemium), Simplenote (Free, Open Source) and Evernote (Freemium).
Relanote is ? note-taking app that combines both hierarchical and non-hierarchical (wiki-style) note-taking. By leveraging the power of both methods, Relanote adapts to your way of thinking and allows you to create your personal knowledge base.