kdiff3
Beyond Compare
WinMerge
Meld
Araxis Merge
DiffMerge
P4Merge
Devart Code Compare
ProcessWire
WordPress
Drupal
Ghost
Joomla
Grav
SquareSpace
Blogger
kdiff3
ProcessWireBeyond Compare - Beyond Compare allows you to compare files and folders.
WordPress - WordPress is web software you can use to create a beautiful website or blog. We like to say that WordPress is both free and priceless at the same time.
WinMerge - WinMerge is an open source differencing and merging tool for Windows.
Drupal - Drupal - the leading open-source CMS for ambitious digital experiences that reach your audience across multiple channels. Because we all have different needs, Drupal allows you to create a unique space in a world of cookie-cutter solutions.
Meld - What is Meld? Meld is a visual diff and merge tool targeted at developers.
Ghost - Ghost is a fully open source, adaptable platform for building and running a modern online publication. We power blogs, magazines and journalists from Zappos to Sky News.