cherrytree

cherytree is an application for hierarchical note-taking, supports syntax customization and allows to store data in a single XML or sqlite file.

Features:

• formatted text (foreground color, background color, bold, italic, underline, strikethrough, small, h1, h2, h3, ...)
• syntax highlighting is supported by several programming languages
• manipulation of images: insert into text, edit (resize/rotate), save as PNG
• related links to text and images
• save and print, as PDF file
• export to html
• export to plain text
• password protection and more!