Top Alternatives to Omni Notes

Evernote is a note taking application which keeps the notes taken in sync across all platforms using its cloud infrastructure.

Google Keep is a cloud based note taking application.

Notezilla is a sticky notes app for Windows.

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.

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

NoteLedge note-taking and management solution.

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.

Flamory saves a copy of every web page or file that you see on your screen.

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

OpenNote was built to be an open web-based alternative to Microsoft OneNote (T) and EverNote.

NixNote is an open source client for Evernote.

Notational Velocity is a software for Mac OS X used for notetaking. It allows users to create notes using solely a computer keyboard and search them using incremental find.

ResophNotes is a fast note writing tool and a Simplenote client on Windows.

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

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.

nvALT 2 is a fork of the original Notational Velocity with some additional features and interface modifications, including MultiMarkdown functionality.

Nimbus Note is a powerful notes app and organizer.

TreeDBNotes is a personal information manager and notetaking program for Windows. TreeDBNotes organizes items in a tree structure and saves all items in a single file.

Leanote is a self-hosted note taking app.

Markor is a free and opensource text editor for Android.

Guide is an application that allows you create documents ("guides") which inherently have a tree (which you can modify as you please) and text associated with each node of the tree.

GNotes is a simple and clear note app. It is available for you to take notes, keep a diary, write down ideas, create checklists, etc.

BeeCanvas is an online whiteboard based visual collaboration tool.

Elephant is a notetaker with a classic interface.