There are many alternatives to Google Keep for Linux if you are looking for a replacement. The best Linux alternative is Joplin, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 100 alternatives to Google Keep and loads of them are available for Linux so hopefully you can find a suitable replacement. Other interesting Linux alternatives to Google Keep are Standard Notes (Freemium, Open Source), Obsidian (Free Personal), Simplenote (Free, Open Source) and Turtl (Freemium, Open Source).
This program is a structured notetaking application based on GTK+ 3. Write your notes in instantly-formatted Markdown, organise them in a tree of folders that can be instantly navigated from within the program, and add hand-drawn notes by mouse, touchscreen or digitiser.
I decided to open-source the project since I believe in the power of people all over the world, working together to create something great under a shared vision. I also believe in sharing knowledge, so anyone that learns from a piece of code.
Buho is a note-taking app. Buho will let you take quick notes, save links, create books and pages for taking classes notes. It is free and multi-platform, and open source under the LGPL v3 License. Index is made with Mauikit.