Markdown Table of Contents Generator

Markdown Editor & Preview renders a Markdown draft so you can check its formatting before publishing elsewhere. It uses GitHub Flavored Markdown — headings, bold, italic, strikethrough, lists, task lists, links, tables, inline code and fenced code blocks. Press Preview to render; it does not update live as you type. The HTML then goes through a strict sanitiser: scripts, iframes, event handlers and javascript: links are removed, and so is anything outside a small allowlist — including images, so an image link shows nothing, and only href, title and alt attributes survive. "Copy HTML" gives you that sanitised, unstyled HTML. It does not build a table of contents (use the TOC Generator) or turn a grid into table syntax (use the Table Generator), and there is no file export. Input is limited to 1 MB and stays in the browser.

Markdown Table Generator turns a grid you fill in into GitHub-flavoured table syntax. The first row is the header, and the separator row is always three dashes per column — there is no alignment option, so left, right and centre markers cannot be produced. Each cell is trimmed; a pipe inside a cell is escaped and a line break becomes a single space, so a cell can never break the table. Empty cells are kept as blank columns, and short rows are padded to the column count. The output is plain text to copy — there is no rendered preview here, so paste it into Markdown Editor & Preview to see it. A table may hold up to 1,000 rows and 20,000 cells within a 1 MB budget, and nothing leaves the browser.

HTML → Markdown Converter takes HTML you paste and turns it into Markdown, entirely in your browser. It converts headings, bold and italic, strikethrough, links, images, ordered and unordered lists including nested ones, blockquotes, inline code, fenced code blocks, horizontal rules, line breaks, and simple tables. The HTML is parsed into the inert content of a <template> element and never inserted into the page, so no script runs and no referenced image, frame or media file is fetched while it is read. Script, style, iframe, object and similar nodes are removed, HTML comments are dropped, and unsafe link or image targets such as javascript: and data: URLs are stripped so only the visible text remains. Relative URLs and anchors are kept as written. This is a focused converter, not an exhaustive one: tables with merged cells are flattened and unusual markup may need a manual touch-up. It goes one way only — to turn Markdown back into HTML, use the Markdown Editor in this category. Input is limited to 1 MB and nothing is uploaded or stored.