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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.

Open the workspace