MWeb Pro 4.8.2 — Mac version

You’re sketching out a blog post with a few photos dragged in, a table of parts, and a quick diagram of the setup. The preview looks right as you type. From the same window you can push the finished article to your WordPress site or bundle a set of notes into a tidy EPUB.

MWeb Pro is a Mac writing app that blends a Markdown editor, a personal library, and a website exporter. It uses GitHub Flavored Markdown — tables, strike-throughs, task lists all work out of the box. You can drop in LaTeX equations or insert diagrams with Mermaid, PlantUML, ECharts and Graphviz, and they render live in the editor.

Export to six formats and publish straight to WordPress

• Writing long-form posts and exporting them to HTML, PDF, EPUB, RTF, Docx or plain images.
• Keeping a searchable library of notes in a tree of folders and tags.
• Publishing straight to WordPress, Metaweblog API, Blogger, Medium, Ghost, Tumblr and Evernote.
• Building static websites from your library without touching a command line.
• Drafting technical docs that need diagrams alongside the text.

Points to a folder of Markdown files, not a database

• The library structure is folder-based — you point it at a folder of Markdown files rather than a database.
• Image upload services are built in, with version 4.8.2 updating sm.ms support to s.ee.
• Runs on macOS 10.13 High Sierra and later, on Intel and Apple Silicon Macs.

No lag typing with 600 notes on an older MacBook Pro

On a 2015 MacBook Pro with 8 GB of RAM it stays responsive even with a library of six hundred notes. Scrolling through long documents doesn't stutter, and the live preview keeps pace with typing — no half-second lag while LaTeX or a Mermaid diagram catches up. Memory use sits around 200–300 MB for a moderate library, which leaves headroom for a browser and image editor alongside it.

The version 4.8.2 improvement for documents with hundreds of images is noticeable. A fifty-page reference guide full of screenshots opens in a couple of seconds instead of making you wait while the beach ball spins. Exporting that same file to PDF takes a few seconds longer but doesn't lock the app; you can carry on in another tab.

Apple Silicon Macs shrug it off entirely. An M1 Mini handles diagram-heavy notes and multi-format exports without the fan ever waking up. The Intel build works fine under Rosetta 2 if you're on an older installer, but the universal binary runs natively so you get the full speed straight away.

External folders stay blank until you mark them as a library

A few things trip people up, and they're usually easy to fix.

External folder mode confusion. If you open a folder of Markdown files and nothing shows, you probably haven't told MWeb to treat it as a library. The fix is in the error message itself — version 4.8.2 added a New Blank Library button right there. Tap it and the folder becomes a proper library.

Image upload failures after the sm.ms change. The old sm.ms endpoint stopped working. The 4.8.2 update switches to the s.ee service, but if you upgraded and saved preferences still point to the old one, uploads fail silently. Go into Preferences → Image Upload, pick the s.ee entry and re-save. Test with a small PNG before publishing a post with twenty photos.

PDF export looking wrong. Before 4.8.2 you were stuck with the default PDF style. Now you can pick from your custom themes in the export dialog. If the output looks scrambled — fonts overlapping, missing diagram renders — check whether the theme you chose is HTML-based rather than a print stylesheet. Simple themes work best.

WordPress summary field missing. If you publish to WordPress and the summary doesn't appear, make sure you've filled the optional summary box added in 4.8.2. It's easy to skip past it in the publish panel.

Deleting inside the app removes the file from disk

The most common one is treating the library like a file browser. Deleting a note inside MWeb removes it from the folder on disk — there's no trash inside the app. If you're tidying up, do it carefully, or keep a Time Machine backup running. Another is pasting images without realising how the storage works. By default images land in a media folder relative to the document, which is fine until you move the Markdown file by itself and all the pictures break. Let MWeb manage the folder structure or use an image upload service so links point to URLs instead of local paths.

New users often ignore the diagram support completely because it's tucked behind the code fence syntax. You type ```mermaid and a blank block appears — it's only when you add a valid diagram definition that the preview lights up. The Mermaid library was bumped to 11.14.0 in this version, so syntax from recent Mermaid docs works straight away. Start with a simple flowchart before attempting ECharts or PlantUML; the error messages are friendlier that way.

One last tip: if you downloaded mweb pro torrent mac builds from sketchy sources, you might find the Gatekeeper bypass step doesn't match what this page describes. The TNT release mounts cleanly and gives you clear Terminal instructions — if you're seeing anything different, just verify the .dmg checksum against known good copies floating around so you know you're working with a clean repack.

• Markdown files with hundreds of images now open without the lag.
• PDF export can pull styles from your custom themes.
• The sm.ms image upload service switched to s.ee.
• WordPress publishing can optionally include a summary.
• Mermaid library bumped to 11.14.0.
• A New Blank Library button appears in the error message when you pick a folder without a library.
• Multiple Images into One gained a Paste button and Command+V support.

• macOS 10.13 High Sierra or newer.
• Works on Intel and Apple Silicon Macs.
• Interface in English.