Is MarkItDown Online free to use?

Yes. MarkItDown Online is free to use with an optional Pro plan for advanced features.

What file formats are supported?

MarkItDown Online supports PDF, Word (.docx), Excel (.xlsx), PowerPoint (.pptx), HTML, images (OCR), and audio files.

Is my document data stored?

No. All document processing happens in your browser or via temporary in-memory processing. No uploaded files are stored permanently.

Does MarkItDown Online use Microsoft MarkItDown?

Yes. MarkItDown Online uses the open-source Microsoft MarkItDown library to convert PDF, DOCX, XLSX, PPTX, HTML, images, and audio to Markdown.

Can I convert multiple files at once?

Yes. MarkItDown Online supports batch file conversion. You can upload multiple files and convert them all at once.

MarkItDown Online

GitHub ↗

News

New batch validation gate checks Markdown structure before export

2026-07-28

Batch exports are only useful if the output is structurally sound. Starting 2026-07-28, MarkItDown Online runs a validation pass on every converted file before packaging the ZIP.

What the gate checks

The validator inspects heading hierarchy, table completeness, and section content. Each check is independent.

How teams use it

Operators reviewing a batch of 50+ conversions can sort by validation status and focus re-review on flagged files. Feedback: sapsap@qq.com.