Convert Markdown to HTML Online
Convert GitHub Flavored Markdown (GFM) into clean HTML with table support and XSS sanitization.
Convert HTML documents and web snippets into clean, readable GitHub Flavored Markdown in your browser.
Up to 10 MiB. Converted privately in your browser.
Upload an HTML file or paste HTML markup.
The converter cleans up tags and produces standard Markdown syntax.
Copy the Markdown text or download the .md file.
Converts HTML tags (headings, paragraphs, bold, italic, code blocks, blockquotes, lists, links) into clean Markdown syntax using the Turndown conversion engine.
Maximum file size: 10 MiB. Complex interactive elements (forms, canvas, scripts) are omitted. Standard document text and formatting are preserved.
Your data is parsed, validated, and converted entirely in your web browser. File content is never transmitted over the internet to FileNimble servers. All calculations run in your local browser memory. Clearing the tool or leaving the page releases application references; this is not a guarantee of secure memory erasure. Saved downloads remain on your device.
Formula injection prevention is applied by default when generating CSV output to help protect against remote command execution and exfiltration attacks when opening files in spreadsheet applications such as Microsoft Excel and Google Sheets.
Yes. You can paste HTML snippets directly into the editor and convert them to clean Markdown immediately.
Yes. Standard image and anchor tags are converted to Markdown image and link syntax.
Convert GitHub Flavored Markdown (GFM) into clean HTML with table support and XSS sanitization.
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