1. What does this tool do
This free online text writer is a Markdown-capable editor in your browser. Use it as a Markdown editor or plain text editor to write, format, and edit documents with a toolbar for bold, italic, headings, lists, and more. Open local files and save as .md or .txt—no account, no upload. Everything runs in your browser so your documents stay on your device. Ideal for notes, drafts, README, or quick docs without installing software.
2. How to use it
Quick start: Type in the editor, use the toolbar for formatting (bold, headings, lists), switch to preview to see Markdown rendered, then open or save .md/.txt files from your device. No sign-up.
- Write — Type in the editor. Use the toolbar to apply formatting (bold, italic, headings, lists, links, code).
- Preview — Switch to or view the preview to see Markdown rendered as HTML.
- Open — Use "Open file" (or equivalent) to load a .md or .txt file from your device.
- Save — Save the current content as .md or .txt to your device. No data is sent to a server.
3. How it works
The editor is a text area with toolbar actions that insert or wrap selected text in Markdown syntax. Preview is rendered from the Markdown source (e.g. with a library like marked). File open/save uses the browser File API (and download for save). All processing is client-side in your browser. No data is sent to any server.
4. Use cases & examples
- Quick notes — Jot down ideas with headings and lists, then save or copy.
- README or docs — Draft Markdown for GitHub or docs and preview as you go.
- No install — Edit text on a shared or locked-down machine where you can’t install apps.
- Portable — Same editor on any device with a browser.
Example
- Type
**bold**and use the bold button or type it; preview shows bold. - Add
# Headingfor a top-level heading in the preview.
5. Limitations & known constraints
- Browser only — No cloud sync or collaboration; files are local only.
- File size — Very large files may slow the editor or preview; practical limits depend on the browser.
- Markdown flavour — Supports common Markdown; extended syntax (e.g. tables, footnotes) may depend on the renderer.