TreeDBNotes Alternatives for Linux

Zim is a graphical text editor used to maintain a collection of wiki pages.

Simplenote is an easy way to keep notes, lists, ideas and more.

Joplin is an open-source free note taking and to-do application.

wikidPad different from other notepad applications is the ease with which you can cross-link your information.

CherryTree is an hierarchical note taking application, featuring rich text and syntax highlighting, storing data in a single xml or sqlite file.

NixNote is an open source client for Evernote.

BasKet Note Pads is a KDE program for organizing, sharing, and taking notes.

WizNote is a cross-platform cloud based note-taking client.

Turtl lets you take notes, bookmark websites, and store documents for sensitive projects. From sharing passwords with your coworkers to tracking research on an article you're writing, Turtl keeps it all safe from everyone but you and those you share with.

Leanote is a self-hosted note taking app.

Treepad is a personal information manager, notes organizer.

MyTetra is a smart cross-platform manager for information collecting.

myBase is a unique free-form database software that allows entry of unstructured text, webpages, images, documents, emails and even arbitrary files.

Elephant is a notetaker with a classic interface.

footnote is a very light and neat Notebook App for elementary OS.