Preview GitHub-flavored Markdown with sanitized output.
Markdown renders locally, then DOMPurify sanitizes the preview before it is inserted.
Paste Markdown to see a live sanitized HTML preview with GitHub-flavored tables, fenced code blocks, headings, lists, quotes, and inline formatting. The rendered HTML can be copied or downloaded for quick documentation drafts and notes.
Markdown is converted to HTML in the browser and sanitized before the preview is rendered. Headings, lists, tables, quotes, and fenced code blocks are kept within the supported Markdown subset.
Example: Paste a README section with a table and fenced TypeScript example to check its structure before copying the sanitized HTML into documentation.
The preview is not a guarantee of exact rendering on GitHub or another Markdown engine. Unsupported extensions, raw HTML, external assets, and platform-specific plugins may render differently or be removed for safety.
Yes. CodeSphere renders Markdown with marked and sanitizes the resulting HTML with DOMPurify before inserting it into the preview.
Yes. Tables, fenced code blocks, task-style syntax, lists, headings, and common inline formatting are supported.
Images are stripped from the live preview for privacy and to keep the tool from making network requests after page load.
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