Markdown Preview Live is a free online markdown editor that combines 6 core functions in one browser tab: write, preview, open, format, convert, and export. The split-screen markdown preview sits beside your source text and updates within milliseconds of each keystroke. Open any md file straight from your computer, tidy inconsistent syntax with the built-in markdown formatter, and convert documents to 4 formats: HTML, Word, PDF, and plain text. Finished work downloads in 3 file types, .md, .html, or .pdf, with one click. Conversion keeps headings, tables, links, and code blocks intact in every output format.

All processing happens locally in your browser, so your files never touch a server and nothing requires an account. Whether you want a quick markdown viewer for checking a README or a full online markdown editor for drafting documentation, the tool covers both. There is nothing to install and nothing to pay, on desktop or mobile.