The #1 Blog Editor for the Mac!

MarsEdit is the best way to write, preview, and publish your blog.

Free to download! Unlock a free trial in the app, purchase a full license, or continue to use the app for free to maintain an archive on your Mac and work locally with your published blog posts.

- Works with WordPress,, Tumblr, TypePad, Movable Type and dozens of other systems that support standard MetaWeblog and AtomPub interfaces.

- Work offline with local drafts on your Mac, preview the formatting and content of your posts, and publish when you're ready to share with the world.

- Easily browse for a photo from your iPhoto, Aperture, or Lightroom libraries, and embed it for automatic upload with your blog post.

- Avoid common browser-based problems like losing your edits by navigating to another page, poor spelling for lack of a spell checker, etc.

- Perfect for professional bloggers and casual writers who don't want to mess around with clunky web-based interfaces. If you're lucky enough to have a Mac, nothing is more powerful or more elegant than MarsEdit.

- Write in Rich Text "WYSIWYG" that will be converted automatically to HTML when you publish, or hand-tune the HTML in a syntax-highlighted code editor. Markdown fan? Write in Markdown in the HTML editor and see a live-preview of the HTML rendering in the preview window.

- Compatible with macOS 10.12 or higher.

Coming to the Mac from Windows? MarsEdit is similar to Live Writer, the popular Windows blog editor, but differs in some ways. Ask around and read MarsEdit reviews to decide if MarsEdit is right for you.

What’s New

Version 4.5.7

This update includes the following bug fixes and improvements:

- Fix the Set Date panel to default to Today again as it used to
- Fix an issue that prevented Quick Post documents from prompting to save changes
- Improve the contrast of status bar text in Dark Mode
- Fix the Preview Window's default template to be dark styled in Dark Mode
- Fix an issue where "View on Web" would go to the web home page instead of the specific post
- Disable Quick Look in "Uploaded" section of Media Manager because it doesn't work properly yet
- The selected blog in Preferences now automatically switches to the selected blog in the main window

Version 4.5.6 included these changes:

- Fix an issue where an unedited document might be marked as edited
- Fix a crash that could happen when configuring a blog with an invalid URL
- Fix a crash that could occur when refreshing a WordPress blog with ICO format images in library
- Fix an issue where the main window's refreshing progress indicator could get stuck
- Fix an issue where the specified author of a post was not saved/restored on local drafts
- Revise the style of prompts in the post editor to use a more standard format
- Avoid a hang in the app when trying to publish a post to an improperly configured blog

Version 4.5.5 was a quick fix to prevent a crashing bug that could occur when the main window's post list is empty.

Version 4.5.4 added an option for media syncing to download only thumbnail-sized images, for folks who don't want to download a complete archive of the images on their blog. It also includes a fix for editing Page type entries on WordPress blogs, and a variety of other fixes:

- Support a new per-blog option to download only thumbnails instead of full-sized image files from WordPress blogs
- Fix an issue that caused editing WordPress Page entries to prompt for a password
- Improve error messages for WordPress blogs when user is not permitted to perform certain tasks
- Relative dates of items in the post list are now updated periodically to keep them accurate
- Fix an issue that caused blank posts to be opened at launch in some instances
- Revise the appearance of progress panels displayed by the app

Version 4.5.3 included refinements to the Media Manager as well as a variety of miscellaneous fixes:

- Restore ability to drag files from the Uploads list to the post content or featured image
- Fixed a crash when dragging images from Apple Photos in the Media Manager
- Fixed a problem that caused JavaScript to be disabled in the Blog Preview for some users
- Control-clicking an item in the Media Manager now selects it before presenting a contextual menu
- Fixed a bug that caused the post editor window to become frontmost after it finished sending to blog
- Fixed a bug that prevented all tags from being deleted from an already-published WordPress post
- Scripted replacement of text in plain text editor now preserves selection
- "Edit Read More Content" menu item now works even if the text content area was not focused

Version 4.5.2 included a number of refinements to the WordPress media syncing functionality added in version 4.5, and a few other fixes:

- Improved performance when loading a large number of freshly synced media item
- Can now separately specify the number of media items, posts, and pages, to download/sync from a blog
- Fix a bug that caused the wrong image to be dragged/inserted when selecting items with a search filter in place
- Fix the sort order of posts when using the search/filter in the main window
- No longer showing media items in the main blog post list when searching for posts
- Fix a crashing bug when selecting "View on Web" for a blog with a home page URL that has a space in it

Version 4.5 was a substantial update featuring support for syncing WordPress media items, among other things.

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Ratings and Reviews

4.6 out of 5
67 Ratings

67 Ratings

TundraSonic ,

Makes blog life much easier

I’m a full time writer and have tried numerous apps and methods for writing, editing and posting to the four blogs that I write for. Mars Edit is easily the best I’ve found. For the two larger blogs it makes the editors happy because the HTML formating is always correct unlike any option with Pages, Word or even Evernote. One long-form blog I still write primarily in Pages for it’s outlining capabilities that I use for notes but then paste the final verbiage in MarsEdit, format, add any graphics and post knowing the HTML will be spot on. For one large blog and one of my own I never need to do any other editing directly in Wordpress, just press ‘post’ and it’s done. Two of the blogs, one large, one my own, sometimes require some extra editing of photos but that’s not a problem and still much easier than other options.

Having all of my posts organized in one place is extremely beneficial and makes finding old writing quicker and easier. Also makes cross-posting much easier on the few occasions I’ve done it. All of the editing tools I need are there.

Developer Response ,

Thank you so much for taking the time to write this thoughtful review! I appreciate it. I hope MarsEdit continues to serve you well for all your blogging needs.

iacas ,

Years in the Making

I've relied on two blog editors in over a decade of publishing content to MovableType and WordPress. First was ecto, but it stopped being a viable editor a loooooong time ago. I moved to MarsEdit 3 that looooong time ago, and virtually every blog post I've written for over a decade has been written in MarsEdit.

MarsEdit 4 is a beautiful, simple, efficient upgrade. It carries forth and improves the features every blog owner uses and needs, and enhances others that blog owners didn't THINK they needed but now will. :-) If you're still editing your blog posts in a Web interface, embrace MarsEdit and the power of a full Mac app for your editing. You'll save time, frustration, and energy.

The best got better with version 4.

msadesign ,

Five stars? Yes, it's that good

So, you write a blog. Get MarsEdit. Yes, it's that good. ME was feature-rich and lovely to use when I bought it in 2007. Since then, I have seen results achieved by a tightly-focused developer’s obvious, relentless effort. Daniel has methodically smoothed the bumps and rounded the edges.

And smooth, baby, smooth.

I am a writer. I churn out columns, articles, and full-length non-fiction books. I started with the likes of Word 4.1a and MacWrite. I’ve used all of the current, modern word processors. I use the excellent Scrivener for all of this work.

But blogs? Blogs are different.

MarsEdit knows this. ME is a bespoke, focused creation with the tools needed to setup, write, and edit your blog. Upgrades are thoughtful and explained.

Support? I've had occasion to email a question, always receiving a quick response, sometimes the same day, certainly the next. No formulaic nonsense, either; Daniel actually reads emails, takes the time to understand the user issue, asks pertinent questions, and offer solutions.

Stop looking. Yes, it’s that good.

Developer Response ,

Thank you so much for taking the time to leave such a nice review! And I'm glad to hear how valuable MarsEdit has been to you over the years. -- Daniel

App Privacy

The developer, Red Sweater Software, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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