What is a Markdown editor?
A Markdown editor is a tool that allows you to write text in Markdown syntax and see the formatted output in real-time. Our editor provides a split-pane view with the raw Markdown on one side and the rendered preview on the other.
Does spell check work in this Markdown editor?
Yes. Your browser's built-in spell checker underlines misspellings as you type, and extensions such as Grammarly and LanguageTool work too. There is a toggle in the toolbar to turn it off. Most online Markdown editors are built on code-editor engines like Monaco, CodeMirror or Ace, which replace the browser's text field with a custom drawing surface — that is why spell check and Grammarly do not work in them. This editor keeps a real text field underneath and paints the syntax colours behind it.
Is my content saved?
Yes, your draft is saved automatically to your browser's local storage, and the status bar shows when the last save happened. If storage is full or unavailable the editor says so rather than failing silently, and if you have the editor open in two tabs it warns you before one overwrites the other. Nothing is uploaded — the draft only ever exists on your device. If you would rather reach a document from another machine, a free account adds private cloud documents with autosave, share links and an API, and it is entirely optional.
Can I export my Markdown?
Yes. The Export menu downloads Markdown, HTML, Word (.docx) and PDF, and copies your document converted for Slack, Discord, Telegram, WhatsApp, Jira, BBCode, rich text for Google Docs, or plain text with the syntax stripped. Every conversion runs in your browser, so nothing is sent to a server and there are no watermarks or export limits.
Does the editor support regular expressions in find and replace?
Yes. Toggle the regex button in the find bar and your pattern is applied as a JavaScript regular expression, with $1 to $9 inserting capture groups in the replacement and $& inserting the whole match. Every match is highlighted in the source pane at once, and Ctrl/Cmd + G steps through them without returning to the find field. An invalid pattern is reported rather than silently matching nothing.
Do lists and tables continue automatically?
Yes. Pressing Enter inside a bullet, numbered or task list starts the next item, numbered lists increment, checked boxes continue as unchecked, and pressing Enter on an empty item ends the list or outdents a nested one. Tab and Shift+Tab indent and outdent, and Shift+Enter inserts a plain line break inside an item. Pasting cells copied from Excel, Google Sheets or Numbers produces a formatted Markdown table.
Does the preview support GitHub-style callouts?
Yes. Use blockquotes such as > [!NOTE], > [!TIP], > [!IMPORTANT], > [!WARNING], or > [!CAUTION] to render styled documentation callouts.
Can I preview math and diagrams?
Yes. Inline and block LaTeX math render with KaTeX, and fenced mermaid code blocks render as diagrams in the live preview.
Can I format messy Markdown?
Yes, use the Format button in the editor footer to clean spacing, standardize list markers, and align Markdown tables locally in your browser.