Markdown Viewer

Use this Markdown Viewer when a .md or .markdown file needs to be readable now, not after installing a desktop editor. Import a Markdown file, paste source text, or start from the sample document. The editor and preview sit side by side, so headings, lists, links, and tables become a rendered document immediately. This works well for README.md, CHANGELOG.md, release notes, docs drafts, and short technical notes. It is not an operating-system file handler, so it will not make your browser the default app for every local Markdown file.

A simple Markdown Viewer should make the document easier to read without turning the page into a full writing platform. If you searched for a markdown live viewer, this page gives a practical browser preview rather than a complex publishing workspace. The live preview updates as you edit, and the view selector lets you switch between split view, editor-only mode, and preview-only mode. The Markdown Viewer stays lightweight: use format cleanup for rough spacing and table alignment, then copy the source Markdown or rendered HTML when the document is ready. The current formatter is intentionally basic, not a full linting or style-enforcement engine.

This Markdown previewer uses a ReactMarkdown pipeline with GitHub Flavored Markdown support. In the current product, GFM tables render as real tables, task lists render as checked or unchecked items, and fenced or indented code appears as code in the preview. Inline and display math can render through KaTeX, which is useful for engineering notes and research drafts. Do not treat the preview as GitHub-perfect, though. Raw HTML is not rendered as trusted HTML, and different apps can handle line breaks, math, anchors, and sanitization differently.

AI tools often produce Markdown with nested headings, tables, task lists, code blocks, and bullet-heavy plans. Paste that output into the Markdown Viewer before sending it to a teammate, a docs repo, or a prompt workflow. The page helps you catch broken hierarchy, wide tables, missing code fences, and noisy spacing before the content is reused. The Markdown Viewer does not summarize, rewrite, or fact-check AI output. It gives you a readable rendering surface so the structure is easier to inspect.

After previewing, you can copy Markdown, copy rendered HTML, download a .md file, export an HTML document, or use the browser print flow to save a PDF. The Markdown Viewer is useful when a quick handoff matters more than a full publishing pipeline. For a markdown viewer to PDF workflow, the honest path is browser print, not a server-side PDF renderer, so final paper size, page breaks, headers, footers, and filenames are controlled by the browser dialog. For a dedicated export workflow, use the related Markdown to PDF tool and still inspect the saved artifact.

Markdown is a family of formats, not one exact rendering contract. GitHub Flavored Markdown, CommonMark, VS Code preview, Obsidian, and web renderers can differ on raw HTML, math delimiters, heading anchors, line wrapping, tables, and task list details. This Markdown Viewer is built for practical online preview with GFM, KaTeX math, code blocks, tables, and browser-side export controls. If you are publishing to a specific platform, treat this preview as a close reading check and still test the final destination when exact compatibility matters.