MarsEdit is a standalone blogging application. If you are serious about your blog and you need a quick, convenient and reliable tool to work with it, then MarsEdit is a program that you should definitely familiarize yourself with. Rich text editing capabilities, including at the HTML level – scanning media libraries in iPhoto, Aperture, Lightroom, or Flickr and quickly pasting content into a post – supports most popular blog services, such as: WordPress, Blogger, Tumblr, Squarespace, TypePad , Movable Type, LiveJournal, Drupal, Vox and many more less popular blogging platforms. Fast uploading files and images to a blog – preview – creating blogs offline, followed by downloading.
Version 4.5 is a substantial update featuring support for syncing WordPress media items, among other things.