MyTetra Alternatives for Linux

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

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

Tomboy is a desktop note-taking application for Linux, Unix, Windows, and Mac OS X.

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

TiddlyWiki is an open-source single page application wiki in the form of a single HTML file that includes CSS, JavaScript, and the content.

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.

RedNotebook is an open source diary and journal software for Linux, Windows and Mac.

KeepNote is a note-taking and organization. KeepNote is a note taking application that works on Windows, Linux, and MacOS X.

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

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

Piggydb is an open source Web notebook application that provides you with a platform to build your knowledge personally or collaboratively.

Leanote is a self-hosted note taking app.

Treepad is a personal information manager, notes organizer.

utWiker is designed to store notes in a tree. Such programs are called "outliner", personal wiki, or tree-like editors.

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

NoteCase Pro is to quickly capture, organize, protect, access, and recycle your information.

Elephant is a notetaker with a classic interface.

Wiki on a Stick is a wiki that lives in one self-modifying XHTML file.

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