The #1 Desktop 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, Blogger, 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 4.2.2

This update fixes a couple bugs:

- Add a Photos Library usage explanation to make accessing Photos on macOS Mojave 10.14 more reliable
- Fix a bug where the Preview Window sometimes didn't update to reflect changed CSS rules in a template

Recently updated in 4.2.1:

- Dark Mode: fix text color in Crash Reporter console log display
- Support "Extended Entry" content in preview template downloader
- Restore support for dragging URLs from Safari into MarsEdit's editor

Recently updated in 4.2:

- Supports Dark Mode in macOS Mojave
- Avoids aggressively reloading the preview window after inserting an image into a post
- Restores ability for MarsEdit to launched as a login item but "hidden" in background
- Fixes a bug that could cause post content to be lost on conversion from Rich Text when a more tag is present

If you have a minute, please leave a rating or review in the App Store. It means a lot.
Questions or concerns about the app? Get in touch at Thank you!

Ratings and Reviews

4.6 out of 5
45 Ratings
45 Ratings
jfgrissom ,

Hoping for something else...

Streamlined "Publishing" made me think of creating content in one place then publishing it to many blogs platforms at once easily.

This isn't what this app does.

Spent about 30 minutes playing around with it. Tried to connect it to a wordpress site and a blogspot site just to see how it all worked.

To perform updates the configuration asks for an endpoint but none of the wordpress documented endpoints worked. And it was a guessing game as to which one they needed. So I decided to just keep using the tools I already use.

Developer Response ,

Thanks for giving MarsEdit a look. I'm sorry the "streamlined" description gave you the wrong impression. The idea is it's meant to be a tool for blogging without fuss to any one of an unlimited number of blogs you can configure in the app.

Configuring a blog does not typically require an endpoint URL, because the vast majority of blogs are set up to automatically convey that URL to MarsEdit if you simply give MarsEdit the home page URL of the blog. In some cases this doesn't work as expected, usually because of custom themes, plugins, or security configurations on self-hosted WordPress sites.

If you decide to give MarsEdit another chance, please feel free to drop me a line There can be some issues to iron out particularly with custom or self-hosted blogs, but once you do get things set up I think it earns the description "streamlined"!

Poofterts ,

Crashes All the time

I wouldn't recommend this app because it crashes all the time and I've lost some of my content due to the issues.

Developer Response ,

Hi there - I'm so sorry to hear that MarsEdit is crashing for you. I take crashes very seriously and investigate every crash submitted via the built-in crash reporter. If you add your email address I will also follow up with you about the crash to get to the bottom of it.

I'm also sorry that you lost data as a result of the crashes. MarsEdit autosaves data to disk several times a minute, so usually if there is lost data, it's only the very latest thing you've typed. If you lost more than that I'm also curious to learn more about what is going on.

Generally speaking MarsEdit is extremely reliable and doesn't crash except in very unusual circumstances. I hope you'll get in touch with me so we can figure out what's going on here.

Thank for taking the time to leave a review. I'm sorry it wasn't a good experience for you so far, but I also hope we can turn that around!

nosillacast ,

Mission-Crticial App for me by a great developer

I've been using MarsEdit for a couple of years and wish I'd found it sooner. My speed to create beautiful blog posts has gone up exponentially with MarsEdit. Ease of creating keyboard shortcuts for HTML, the ability to write in Markdown when I want to, ease of remembering to put in categories and tags are all great. My favorite feature is the way it lets me upload images as retina for sharper, clearer screenshots. I'm a bit of a needy user, and yet the developer is consistently responsive, helpful and fun.


Red Sweater Software
15.1 MB
macOS 10.12 or later, 64-bit processor
Age Rating
Rated 4+
© 2018 Red Sweater Software


  • Family Sharing

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

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