Markdown Tool
Paste or load Markdown and see a polished, secure preview instantly. Everything renders locally in your browser.
Private · rendered in your browser
Paste, type, load, or drop a Markdown file.
Sanitized GFM with highlighted code.
Markdown renders automatically as you paste or type.
The Markdown could not be rendered.
Markdown is easy to write but difficult to review as plain text once a document grows beyond a few headings and paragraphs. This viewer places the source beside a polished rendered document so you can check structure, spacing, tables, lists, links, images, and code before publishing or sharing it.
The live preview is useful for README files, developer documentation, release notes, product specifications, AI-generated Markdown, meeting notes, and content moved from the Rich Text to Markdown Converter. Rendering happens locally, so drafts and internal documentation are not uploaded to a conversion service.
The renderer follows GitHub-Flavored Markdown conventions and handles both everyday documents and more structured technical content.
.md or .markdown file.The source document stays in the active browser tab. Marked parses the Markdown locally, DOMPurify removes executable or unsafe HTML, and Highlight.js styles code without sending it to a server. The document is never placed in the page URL, which keeps browser history and copied links clean.
I published this viewer on afsalv.com for the same documentation workflows I use when reviewing Markdown from developer tools, AI-assisted writing, Confluence, Google Docs, and project repositories.
It supports common Markdown and GitHub-Flavored Markdown features including headings, emphasis, links, images, lists, task lists, tables, blockquotes, inline code, and fenced code blocks.
No. Parsing, sanitizing, syntax highlighting, and preview rendering happen locally in your browser. The current document is kept only in session storage for the active browser tab.
Yes. You can choose or drop a local .md or .markdown file. The browser reads it locally without uploading the file to a server.
Raw HTML is sanitized before it reaches the preview. Scripts, event handlers, embedded frames, unsafe URLs, forms, and other executable content are removed.
Yes. Use Preview Markdown beside the converter's download and copy actions to open the generated Markdown directly in this viewer without sending it to a server.