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MarsEdit 5 5.4.6

MarsEdit 5 5.4.6

MarsEdit 5 is a native Mac blog editor from Red Sweater Software that lets writers compose, preview, and publish posts offline across WordPress, Micro.blog, Tumblr, and other platforms. With Markdown syntax highlighting, a WebKit-based rich text editor, quick Microposting, and full blog archiving, it brings a fast, dependable writing experience directly to the desktop.

VerifiedPopular
3.0
Single PlayerOnlineMultiplayer
Download for Mac
25.6 MB • macOS 12+

INFO

File Size25.6 MB
Version5.4.6
CategoryWriting app
DeveloperRed Sweater Software
LanguagesEnglish
PublisherRed Sweater Software
Release Date2026-09-29
UpdatedOct 1, 2026

SAFETY

Scanned before publishing
No bundled adware
Checksum matches developer build

About MarsEdit 5 5.4.6 for Mac

MarsEdit 5 is a desktop blog post editor for Mac developed by Red Sweater Software, maintained for nearly two decades by longtime developer and former Apple engineer Daniel Jalkut. MarsEdit originated as a simple weblog editor built into NetNewsWire before Red Sweater acquired it in 2007, and has since grown into one of the most respected native blogging tools on the Mac, letting writers compose, preview, and publish posts without needing a web browser or constant internet connection. MarsEdit 5 brought a substantial overhaul to the app, rebuilding its rich text editor on Apple's modern WebKit technologies for better performance and long-term reliability, and adding live, inline Markdown syntax highlighting so plain-text writers can see their formatting styled as they type rather than working with unstyled text. A streamlined Microposting feature lets users publish a quick thought to their blog as easily as posting to a social network, summoned via a global keyboard shortcut that pops up a minimalist editor window. The app also includes enhanced blog archiving, downloading a full backup of a blog's published history for most supported services, alongside a Safari extension for turning web content into new post drafts.

Key Features

The WYSIWYG rich text editor was rebuilt on Apple's current WebKit technologies, delivering a higher

— performance, more reliable editing experience that continues to benefit as Apple invests further in those frameworks.

A modern inline search and replace tool improves on the older, separate Search Panel from MarsEdit 4, keeping find

— and-replace actions within the writing flow.

Calendar

— Based Scheduling

A calendar

— style date panel makes scheduling future posts more intuitive compared to manually entering publish dates and times.