Convert EPUB eBooks into clean, well-formatted Markdown files. Preserves chapter hierarchies, table of contents, blockquotes, and paragraph breaks for offline reading and AI analysis.
Supported formats: .epub • Up to 25MB
Drag & drop your EPUB document here
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Upload a document or paste content on the left to see the structured Markdown output.
Knowledge base
Many researchers, writers, and knowledge workers use Markdown-based second-brain tools like Obsidian, Logseq, and Notion.
Converting EPUB books into Markdown makes entire volumes searchable, backlinkable, and annotatable directly in your personal vault.
Modern frontier LLMs (such as Gemini 1.5 Pro, Claude 3.5 Sonnet, and GPT-4o) support massive 1M+ token context windows.
Converting an entire EPUB into a single clean Markdown document allows you to prompt models with the full book for instant chapter-by-chapter summaries, thematic queries, or character analyses.
AnyDoc reads the EPUB package OPF file and follows the exact spine sequence defined by the publisher.
This prevents preface, appendix, and body chapters from getting scrambled during extraction.
Binary containers like PDF, DOCX, and XLSX carry massive visual formatting, font definitions, and XML schema metadata that consume valuable context window tokens. Markdown strips away this visual bloat while preserving semantic headings, bullet lists, and tables—reducing token count by up to 85% and significantly speeding up AI inference.
Powered by Firecrawl AnyDoc, the conversion engine calculates the physical geometry of spreadsheet grids and document tables, translating them into GitHub-Flavored Markdown (GFM) pipe tables (| Col 1 | Col 2 |). This preserves column alignment and relational meaning without data scrambling.
AnyDoc extracts text directly from digital and vector PDFs with an embedded text layer in single-digit milliseconds. If your PDF consists of scanned pages or camera photos without a text layer, optical character recognition (OCR) is required.
No. Document conversions are processed entirely in-memory and the resulting Markdown is streamed immediately back to your browser. Your files are never written to disk, stored in databases, or used for AI training.
You can convert files up to 25MB in size directly through the web interface. For larger enterprise workloads, batch document processing is available via the SpeedVitals API.
