Version history
Earlier versions of each document, compared line by line and restored in one step (File > Version History).
The tour
See Twinmark 1.0 at work
Every clip on this page was recorded in Twinmark 1.0, the version in the Microsoft Store, editing a sample release guide. Nothing is mocked up; the pointer is drawn in so you can follow it.
1 · Writing
Two panes, kept in step
Type markdown on the left and the page appears on the right; type on the page and the markdown is written for you. Only the part you change is rewritten, so the rest of the file stays exactly as it was.
**release lead**; a task ticked.- Either pane, or bothSource, visual, or side by side, switched from the toolbar.
- The block you're inHighlighted in both panes, which scroll to keep it in view.
- An outlineEvery heading, to jump to; it follows the document as you type.
- Your file, as it wasIts encoding and line endings kept when it's saved.
2 · Tables
Tables, edited as tables
Click into a table and a toolbar appears: add rows and columns, move them, align them. Tab goes from cell to cell. In the markdown, the table stays lined up, so it's as easy to read there as on the page.
3 · Checks
Checked for GitLab and GitHub, with fixes
The problems panel (Ctrl+Shift+M) lists what won't work where your document is going: links to headings that aren't there, headings that skip a level, HTML that GitLab removes, link text that says nothing. Fix them one at a time, or all at once.
#enviroments corrected to #environments, <u> written as <ins>, which GitLab keeps, and a heading put back at the right level.- LinksHeadings and anchors that aren't there, pictures that are missing.
- AccessibilityAlt text, link text and heading order, with a score.
- ReadabilityReading level, long sentences and the passive voice.
- PortabilityMarkdown and HTML that GitLab and GitHub show differently.
4 · The assistant
An assistant that asks first
Select some text and pick an action. The assistant's suggestion appears as a change, words taken out and put in, and nothing in your document changes until you accept it. Here it runs entirely on the computer, with a model downloaded once.
- On your computerA model you download once in AI Settings; then it works offline.
- Or in the cloudOpenAI or Azure OpenAI with your own key, after you agree.
- Asks firstEvery change is shown as a change; nothing happens until you accept.
- Never saved for youAuto Save waits for you to save an accepted change yourself.
5 · Getting around
Every command a search away
Ctrl+Shift+P opens the command palette: type a few letters of anything Twinmark does. Here it adds a table of contents, which then keeps itself up to date when a heading changes.
- OutlineEvery heading, one click away (Ctrl+Shift+T).
- Find and replaceIn the document, with regular expressions if you want them.
- TemplatesBuilt in, and your own: any markdown file in your templates folder.
- The / menuType / at the start of a line in the source for headings, lists, tables and more.
6 · Peace of mind
Your work is safe, and easy to share
Twinmark keeps what you write, even when something goes wrong, and turns it into the file someone else needs.
Crash recovery
Unsaved changes are kept as you go, and offered back the next time Twinmark starts.
Auto Save
A moment after each change, if you turn it on; it pauses after the assistant's changes.
HTML, PDF and Word
A page that needs nothing else, a PDF, or a Word document with Word's own headings, lists and tables, pictures included.
7 · And more
Made for the way you work on Windows
Click a picture to see it full size. Each is Twinmark 1.0, as it is in the Microsoft Store's listing.
- A second monitorThe visual pane in a window of its own, beside the source on the other screen.
- Sharp everywhereEach window is drawn at its own monitor's scale.
- Light and darkFollowing Windows, or the theme you choose.
- Big filesFiles over 5 MB open quickly, with the visual pane paused until you want it.
Try it yourself
Everything in this tour is in the free trial.