OPEN SOURCE EVERNOTE ALTERNATIVE

Turtl is a secure, open source Evernote alternative, available for Linux, Windows, Mac, and Android. An iOS version is “coming soon”. Firefox and Chrome bookmarking extensions are also available.

 

Turtl desktop application

 

The application, which is currently in beta, lets you keep your notes (with Markdown support for the note editor), website bookmarks, passwords, documents, photos, and so on, in a single private place.

Notes can be organized in boards, which support nesting, and can be shared with other Turtl users:

 

Turtl desktop application

 

You can also add tags to your notes. The Turtle search allows sorting by creation date, last edited date, or by tags.
Here’s the note editor (for a file note):

 

Turtl desktop application

 

So what about security? Turtl encrypts the data before storing it, using a cryptographic key, and the password is not stored on the server. Only you and those you choose to share with can read your data. You can read more about the Turtl security and encryption HERE.

Update (thanks to Dimitry!): according to a bug report, Turtl has a pretty serious security issue. Turtl allows creating multiple accounts with the same username, distinguishing between them by passwords. A fix for this is on t he way!

The Turtl developers provide a hosted service for synchronizing your notes, which is completely free “until your profile grows past a certain size or you require certain features”. At the time I’m writing this article, the premium service is not available.