MacJournal!

Laverna is a JavaScript note-taking web application with a Markdown editor and encryption support. It's built to be an open source alternative to Evernote.

A 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 and Evernote .

Love Notes. Love Encryption.

Take quick notes on Post-It(r) like sticky notes on Windows desktop, stick those notes to websites, documents & folders. Set reminder alarm to each sticky note. To avoid desktop clutter, you can organize those sticky notes inside folders. Send sticky notes to another computer over local network (LAN) or Internet, Sync sticky notes between computers using the Notezilla.Net cloud service, access your sticky notes on any smart-device such as iOS(iPhone/iPad), Android, Windows Phone, Blackberry etc. »

RedNotebook is a graphical diary and journal helping you keep track of notes and thoughts. It includes a calendar navigation, customizable templates, export functionality and word clouds. You can also format, tag and search your entries.

Day One is a simple way to journal application for the Mac, iPhone and iPad.

Leanote provides services for note and blog. You can use "note" as your personal notebook, if you want to share with friends, just publish note or notebook to the blog.

NixNote, formerly Nevernote, is an open source client for Evernote . It is written in Java so it will also run on Windows & OS-X, but the primary focus has been to try and get a usable environment for Linux.

WizNote is a Note software, which is especially designed for Internet users and mobile Internet users. WizNote focuses more on notes of rapid collection, management, reading and sharing. WizNote is smaller, more stable, and more suitable for computers, phones and mobile devices. It has a more abundant notes organization and rapid fulltext retrieval. Using associated online service, you can synchronise the notes between your computer and your cell phone.

Gorgeous note-taking app for Mac with Evernote integration. Alternote has pixel-perfect interface, robust search, distraction-free mode and lots more. It is designed to be the most convenient and natural way to make notes, collect information, write down your ideas, feelings and memories

Piggydb is a Web notebook application that provides you with a platform to build your knowledge personally or collaboratively. With Piggydb, you can create highly structured content by connecting knowledge fragments to each other to build a network structure, which is more flexible and expressive than a tree structure. Fragments can also be classified using hierarchical tags.

Oinker looks like a plain chat program on the surface, but it allows you to save the specified messages (called ‘oinks’ in Oinker) on the spot, and more importantly, it allows you to connect the messages in an infinite number of ways to build sophisticated contents.

Open Live Writer is an open source application enabling users to author, edit, and publish blog posts. It is based on a fork of the well-loved but not actively developed Windows Live Writer code. Open Live Writer is provided under a MIT license.