Matt's Markdown Editor

I write a lot of notes, READMEs and plans in Markdown. Most editors were either a full IDE, which is too much, or a web app that wanted an account, which I didn't want. I wanted to double-click a .md file and be typing within a second, with a proper preview next to it and a Save button that simply saves. So I built one.

Version 1.6 — 19 October 2026. Code blocks now wrap long lines instead of running off the right edge, and each one has a one-click Copy button that puts its contents on the clipboard with the line breaks intact — handy for the prompts and snippets you keep in a fenced block.

Version 1.5 — 16 October 2026. The formatted editing view now matches the reading view — content is centred with the same fonts and heading sizes — and the rich editor’s own toolbar handles formatting, links and images (including inserting a picture from your PC, embedded straight into the file), while Save, export and the File menu stay put.

Version 1.4 — 16 October 2026. A width slider in the bottom-right corner sets the content width as you drag, and a View / Edit button at the top right flips between reading and editing. New documents open ready to type. The formatted (WYSIWYG) mode is more solid too: the File menu, Save and export stay available while editing, it looks right in dark mode, and formatting acts on the text rather than inserting raw Markdown.

Version 1.3 — 16 October 2026. Formatted (WYSIWYG) editing: a new view lets you edit the rendered document directly, like a word processor, and your changes are written straight back to Markdown. Plus an adjustable content width, from narrow and readable to full-screen, on the status bar and in Settings.

Version 1.2 — 29 September 2026. Safe saving when a file is edited somewhere else. If the copy on disk changed since you opened it, the editor never overwrites it without asking: keep yours, take the disk version, or merge them. Non-overlapping changes merge automatically; genuine clashes are marked for you to resolve. Auto-save and checkbox ticks respect this too, and closing then reopening the app is reliable again.

Version 1.1 — 29 September 2026. Find now works inside the live preview, scrolling to and highlighting each match, not just in the editor. A reload button and F5 re-read the file from disk, with an optional auto-reload for when another program or an AI rewrites the file, and a warning if you have unsaved edits. You can now Save as PDF or Word straight next to your file, or Save to Google Drive. And ticking a checkbox in the preview writes that change straight back to the file.

Version 1.0. First release: live split preview, tabs, real-file open and save, outline, find and replace, export to HTML/PDF/Word, themes and syntax highlighting.