It is a merged writer + renderer: a split-pane Markdown editor with a formatting toolbar on one side and a live-rendered preview on the other. As you type, the preview updates instantly — no page reloads, no server round-trips. You can also switch to editor-only or preview-only views, download your document as .md, or export it as a standalone HTML file.

Headings (# to ######), bold, italic, strikethrough, inline code, fenced code blocks with language classes, links, images, unordered and ordered lists, task lists with checkboxes, blockquotes, horizontal rules, and tables. The toolbar inserts the most common formatting — bold, italic, strikethrough, heading, link, code, quote, bullet list, and horizontal rule — around your selection.

Yes. The preview is rendered with an XSS-safe converter: any raw HTML you paste is escaped and shown as text rather than executed, and link/image URLs are sanitized so only safe schemes like http:, https:, and mailto: are allowed. You can paste untrusted content without worrying about scripts running in the preview.

Split view shows the editor and the live preview side by side (stacked on small screens) — ideal for writing. Editor view hides the preview for focused writing on large documents. Preview view hides the editor so you can read the rendered result at full width, exactly as readers will see it.

Select the text you want to format in the editor, then click a toolbar button — it wraps the selection with the appropriate Markdown syntax (for example, **bold**). If nothing is selected, it inserts the syntax markers and places your cursor ready to type. Block-level tools like quote and bullet list prefix every selected line.

Yes. The Export button downloads your Markdown as a standalone .html file with clean, self-contained styling — perfect for sharing, publishing, or converting to PDF via your browser. The Copy HTML button copies the rendered fragment for pasting into a CMS or page builder.

Yes — completely free, no registration, and 100% private. Everything runs entirely in your browser with plain JavaScript; your document is never uploaded, stored, or logged. The tool also works offline after the page loads, so you can write and preview Markdown anywhere.

They have been merged into this single unified tool. The old /tools/text/markdown-editor URL now redirects permanently to this page, and the editor and preview features — writing, formatting, live rendering, and export — all live in one place for a smoother workflow.