Supported Markdown and document formats
Markdown Lens opens, converts, edits, and exports common technical-document formats entirely in your browser. This matrix distinguishes direct support from structural conversion and clearly identifies content that needs review.
No account, analytics, or document upload.
- Markdown / text
MD, MARKDOWN, TXT
Open directly
Source content is retained.
- PDF
PDF
Text and layout inference
Scans require local OCR; complex layout needs review.
- Word
DOCX
Structured conversion
Images become local assets; legacy DOC is unsupported.
- PowerPoint
PPTX
Slide-by-slide conversion
Animations and exact object placement are omitted.
- Excel
XLSX
Visible sheets to tables
Macros, charts, and legacy XLS are unsupported.
- HTML
HTML, HTM
Reading-order conversion
Styling and interactive behavior are flattened.
- EPUB
EPUB
Chapter conversion
DRM-protected and fixed-layout books are unsupported or flattened.
- CSV / TSV
CSV, TSV
Tables from delimited text
Merged cells and spreadsheet formatting are not represented.
- JSON
JSON
Pretty-printed fenced text
Invalid JSON is rejected; nested data is not tabulated.
- XML
XML
Validated fenced text
Invalid XML is rejected; remote DTDs are not fetched.
- Images
PNG, JPG, WEBP, BMP
Asset import + optional English OCR
OCR does not interpret charts or diagrams.
- Archives
ZIP
Bounded supported-entry import
100 entries, one nesting level, 128 MB expanded limit.
Designed for review
Every conversion opens in the editable workspace with a rendered preview, document outline, warnings, statistics, and asset-aware export.
Legacy formats
Binary DOC, PPT, and XLS files require export to DOCX, PPTX, or XLSX. This avoids unsafe or abandoned parsing dependencies.