MarkText vs MacMD Viewer: Editor or Native Viewer (2026)

MacMD Viewer vs MarkText: Reader or Editor#

An earlier version of this page called MarkText abandoned. That was true when it was written and it is not true now, so here is the correction first: MarkText's maintenance resumed on 11 May 2026, and the project has shipped stable releases since. Nothing below rests on the abandonment story any more.

That removes the easy argument and leaves the real one. MarkText is a free, open-source, cross-platform WYSIWYG Markdown editor with over 59,000 GitHub stars. MacMD Viewer is a $19.99 native macOS reader that does not edit anything. They are not competing for the same job, and for a lot of people the correct answer is to keep both.

What Changed in May 2026#

MarkText went quiet after v0.17.1 in March 2022. Three years of silence produced the issues you can still find on GitHub asking whether the project was dead — including issue #4098, titled "Project Abandoned. But there is a fork!". That issue is worth clicking, because the maintainer, Jocs, closed it on 11 May 2026 with a single line: "MarkText maintenance has resumed."

What has shipped since, verified against the GitHub API on 29 July 2026:

• v0.19.0 — stable, 28 May 2026
• v0.19.1 — stable, 6 June 2026, and the current latest release
• v0.20.0-beta.2 through v0.20.0-rc.1 — 23 June to 5 July 2026
• Latest commit — 27 July 2026, with a run of roughly fifteen fix commits on 4–5 July
• Repository state — not archived, not disabled, 59,251 stars
• Backlog — 510 open issues and 49 open pull requests
• Runtime — Electron ^42.1.0 in the shipped v0.19.1 and on the develop branch

That last line matters because the old version of this page claimed MarkText carried known vulnerabilities in an outdated Chromium. The distributed build runs a current Electron major. The claim was wrong and it is gone.

The backlog is real and worth naming honestly: 510 open issues is a large queue for a project with one principal maintainer, and a revival that is three months old has not yet proved it will last. That is a legitimate risk to weigh. It is a different statement from "abandoned", and the difference is the whole point.

The One Thing Homebrew Still Flags#

MarkText is deprecated in Homebrew, with the cask disabled on 1 September 2026. That fact survived the audit — but the reason in the old page did not.

Homebrew's deprecation reason is fails_gatekeeper_check: the released DMG is not notarised by Apple. It is not a maintenance flag. The cask still tracks version 0.19.1, which means Homebrew is following the revived releases rather than walking away from them. After the disable date, brew install --cask mark-text stops working and you download from the GitHub releases page instead — an inconvenience, not a dead end.

Notarisation is where MacMD Viewer has a genuine, checkable advantage. It is signed with a Developer ID and notarised by Apple, so it installs and launches the ordinary way, and it is available through brew install --cask macmd-viewer as well as direct download and Setapp. An unnotarised app costs you an extra confirmation on first launch and, in a managed fleet, sometimes a conversation with whoever runs the Mac policy.

MacMD Viewer: A Native Reader, Not an Editor#

MacMD Viewer is a SwiftUI app built for one job: reading Markdown on a Mac. It is a universal binary — native on Apple Silicon and on Intel — with no bundled browser engine. The download is 5.4 MB and it takes about 16 MB installed.

It has no editing mode, and that is deliberate rather than a gap awaiting a future release. Most developers already have an editor they like. What is usually missing is a fast, native way to read the Markdown that piles up around a project: READMEs, specs, changelogs, the CLAUDE.md and AGENTS.md files that coding agents leave behind. A reader can be instant and stay out of the way in a manner an editor cannot.

Feature by Feature#

Mermaid Diagrams — Both, With a Version Gap#

Both apps render Mermaid inline. MarkText has built-in support for Mermaid, flowchart and sequence diagrams; MacMD Viewer bundles Mermaid 11.13.0, which covers the newer diagram types as well as the classics.

The differentiator is not whether diagrams render but where. MacMD Viewer renders Mermaid inside the Finder QuickLook panel, so a diagram appears when you press Space on a file — no app launch, no window. That is the part MarkText structurally cannot match.

QuickLook Extension#

MacMD Viewer ships a QuickLook extension. Select any .md file in Finder, press Space, and it renders with headings, code blocks, tables, syntax highlighting across roughly 34 languages, and Mermaid diagrams.

MarkText provides no QuickLook extension, and this is not an oversight anyone can patch: a QuickLook preview extension is an App Extension that has to be bundled and signed as part of a native macOS app target. Electron does not produce one. Free QuickLook plugins for Markdown do exist separately — this is not a claim of exclusivity — but they are a different install with a different renderer, not MarkText.

Apple Silicon and Footprint#

The old version of this page said MarkText runs under Rosetta. It does not. Release v0.19.1 ships marktext-mac-arm64-0.19.1.dmg and a matching .zip alongside separate x64 builds, the desktop package has dedicated build:mac:arm64 and build:mac:x64 targets, and the Homebrew cask URL points at the arm64 DMG. On an M-series Mac you get the native build.

The honest remaining difference is architecture, not translation. Electron ships a full Chromium with every app, so disk and memory sit well above what a SwiftUI app needs for the same document. MacMD Viewer's 5.4 MB download and roughly 16 MB installed footprint is a category apart from any Electron application, revived or not. If your objection to Electron was Rosetta, that objection is now void. If it was the browser engine, it stands.

Live File Watching#

This one needed correcting too. MarkText does watch open files for external changes: its main process uses chokidar in packages/desktop/src/main/filesystem/watcher.ts and emits an update event that the renderer handles by reloading the buffer, with two dedicated end-to-end tests covering the behaviour.

The genuine difference is what happens next. MarkText holds an editable buffer, so replacing its contents silently would risk destroying unsaved work. When autosave is on and the tab is clean it reloads automatically; otherwise it raises a "file changed on disk" notification with a one-click reload. MacMD Viewer never holds an editable buffer, so it just refreshes — edit in VS Code, Vim or Zed, hit save, and the rendered view updates with nothing to confirm. Read-only is what buys the silence.

Themes#

Credit where it is due, on the axis this site promotes hardest: MarkText ships 33 built-in themes — 10 light and 23 dark, including Ayu, Catppuccin, Dracula, Gruvbox, Nord, Rosé Pine, Tokyo Night, Solarized and One Dark — plus full custom CSS and a follow-system-theme option. The previous version of this page said six. That was wrong by a factor of more than five, and it understated the competitor on exactly the feature this site promotes.

MacMD Viewer ships 12 document themes with automatic light and dark switching. Twelve well-tuned themes are enough for most readers, and they apply in QuickLook as well as in the app window, which is a genuinely nice detail. But if theme count or custom CSS is what decides it for you, MarkText wins that comparison outright.

The Free Versus Paid Question#

MarkText is free under the MIT licence, with no account and no subscription. MacMD Viewer is $19.99 once. When the abandonment story was intact, this section argued that abandoned free software is not really free. That argument no longer applies, so this page no longer makes it.

What is left is narrower and more defensible. You are not paying $19.99 for maintenance MarkText lacks. You are paying for a different shape of tool: a native reader that opens instantly, previews in Finder without launching anything, refreshes silently while you edit elsewhere, weighs 5.4 MB, and is signed and notarised so it installs without friction. If none of that is worth $19.99 to you, MarkText is free and it is maintained — that is a completely reasonable place to land, and one paid app's marketing page should not pretend otherwise.

Different Tools for Different Jobs#

MarkText is an editor. MacMD Viewer is a reader. The comparison people actually need is not "which one wins" but "which one am I missing".

If you write in MarkText and it works, keep it. Add MacMD Viewer only if you want Finder previews and a fast reading window next to your editor. If you want a paid editor with a different feel, Typora is $14.99, and VS Code remains free. If you mostly read Markdown — reviewing pull requests, skimming docs, checking what an AI agent wrote into a .md file — a reader is the tool that fits, and the editor was always doing more than you needed.

For the wider landscape, see the best Markdown viewers for Mac roundup and the MacDown alternative guide, which covers a similar migration question with a different answer.

Running Both#

Adding MacMD Viewer to a MarkText setup takes about a minute:

1. Install MacMD Viewer from the purchase page, or with brew install --cask macmd-viewer
2. Decide the default handler — in Finder's Get Info panel, point .md at MacMD Viewer for reading, or leave MarkText as default and open in MacMD Viewer when you want to read
3. Keep MarkText for writing, along with any other editor you use
4. Use QuickLook — press Space on a .md file in Finder for an instant rendered preview, diagrams included

Markdown files are plain text. There is no format migration, no export step and no lock-in in either direction, which is exactly why running both costs you nothing but the price of the reader.

The Bottom Line#

MarkText in 2026 is a free, MIT-licensed, cross-platform WYSIWYG editor that is being maintained again, ships native Apple Silicon builds, runs a current Electron, watches files for external changes and offers 33 themes with custom CSS. If someone told you it was dead, that information — including an older version of this page — is out of date.

MacMD Viewer is not trying to beat it at editing. It is a native SwiftUI reader: Finder QuickLook with rendered Mermaid, Mermaid 11.13.0, 12 document themes, silent live reload, a 5.4 MB signed and notarised download, macOS 14 and later, universal binary, $19.99 once. Buy it if reading Markdown is a daily part of your work and you want that part to be instant. Skip it if MarkText already covers everything you do — that is a fair call, and the page that tells you otherwise is selling.

All MarkText facts above were verified against the GitHub API, the Homebrew cask API and the project repository on 29 July 2026. For the broader picture, browse the best Markdown editor for Mac guide.

FAQ#

Is MarkText still maintained in 2026?#

Yes. After three dormant years, maintainer Jocs announced on 11 May 2026 that "MarkText maintenance has resumed". Stable releases followed — v0.19.0 on 28 May and v0.19.1 on 6 June 2026 — then pre-releases through v0.20.0-rc.1 on 5 July, with the latest commit on 27 July 2026. The repository is not archived and holds 510 open issues and 49 open pull requests: a substantial backlog, but an active maintainer. Checked 29 July 2026.

Does MarkText run natively on Apple Silicon?#

Yes. Release v0.19.1 ships marktext-mac-arm64-0.19.1.dmg and .zip alongside separate x64 builds, and the Homebrew cask points at the arm64 DMG, so an Apple Silicon install gets the native build rather than a Rosetta translation. The remaining difference is the runtime: Electron bundles its own Chromium, so MarkText's disk and memory footprint stays well above MacMD Viewer's 5.4 MB download and roughly 16 MB installed. Checked 29 July 2026.

Does MarkText have a QuickLook extension?#

No. A QuickLook preview extension is a signed App Extension inside a native macOS app bundle, and Electron does not produce one. MacMD Viewer includes a QuickLook extension, so pressing Space on any .md file in Finder renders it with headings, code blocks, tables, syntax highlighting and Mermaid diagrams. Standalone Markdown QuickLook plugins exist too — this is a difference between these two apps, not a claim that no other tool previews Markdown in Finder.

Does MarkText watch for external file changes?#

Yes. MarkText watches open files with chokidar and reloads the buffer when the file changes on disk — automatically when autosave is on and the tab is clean, otherwise via a "file changed on disk" notification with a one-click reload, a behaviour covered by two dedicated end-to-end tests. The difference is that MacMD Viewer holds no editable buffer, so it refreshes silently with nothing to confirm. That is the trade-off of a read-only viewer, not a missing feature in MarkText.

Why is MarkText deprecated on Homebrew if it is maintained?#

Because of code signing, not abandonment. Homebrew marked the mark-text cask deprecated with the reason fails_gatekeeper_check — the released DMG is not notarised by Apple — and set a disable date of 1 September 2026. The cask still tracks version 0.19.1, so Homebrew is following the revived releases. After that date you install from the GitHub releases page directly. MacMD Viewer is signed with a Developer ID and notarised, and remains installable with brew install --cask macmd-viewer. Checked 29 July 2026.

Is MarkText free, and is that a reason to stay on it?#

MarkText is free and open source under the MIT licence; MacMD Viewer is $19.99 once. Now that MarkText is maintained again, "free but abandoned" is no longer the trade-off. The real question is what you need: a full WYSIWYG editor with 33 themes on three platforms, or a native Mac reader with Finder QuickLook, silent live reload and a 5.4 MB notarised install. If MarkText covers your workflow, staying on it is a sound decision.