Convert Any File to Markdown or JSON
Convert PDFs, Word documents, Excel spreadsheets, presentations, images, and 40+ other formats into clean, structured Markdown or JSON.
Convert your document
Output: clean Markdown with tables, math, and document structure preserved.
You can upload up to 10MB · Auto-detect math equations and complex tables
lockYour files are protected with end-to-end encryption. After conversion they are automatically cleaned up — we never retain or leak any private content.
Convert 40+ File Formats
Zero dependencies required. FileMarkd parses binary and markup documents straight to clean CommonMark or deeply indexed AST trees.
Document Formats
Full AST and CommonMark parsing with complete preservation of document hierarchies, multi-column layouts, data tables, and mathematical formulas.
Image Formats
Automated vision-based OCR with spatial coordinate mapping and multi-column document layout deconstruction.
Choose the Format That Fits Your Workflow
Whether you are building LLM context windows or feeding downstream enterprise relational stores, FileMarkd outputs clean, validated structures.
Markdown (.md)
Structured JSON (.json)
Preserve More Than Just Text
Plain text dumping loses 80% of human document intent. FileMarkd's multi-pass structural compiler guarantees critical semantics remain intact.
Headings & Hierarchy
Maintains the semantic cascade from H1 through H6 without flattening sections into plain body paragraphs.
Complex Tables
Converts multi-page tables, column spans, and financial matrices into deterministic GFM tables or JSON coordinate arrays.
Lists & Checklists
Preserves nested indentation, numbered series, task checkboxes, and bullet anchors across page breaks.
Images & Charts
Extracts inline figures, isolates captions, and executes high-resolution OCR on flowcharts and architectural diagrams.
Rich Metadata
Pulls embedded PDF properties: author, revision dates, cryptographic signatures, page count, and layout margins.
Multi-Language Unicode
Flawless Unicode parsing for 40+ global languages, right-to-left scripts (Arabic/Hebrew), and CJK character rendering.
Supported File Conversions Matrix
| File Type | Input Ext | Markdown Output | JSON Output | Structure Preservation | OCR Support |
|---|---|---|---|---|---|
| Portable Document Format (PDF) | Pixel-Perfect AST | Full Hybrid OCR | |||
| Microsoft Word | .docx / .doc | Styles, Tables & XML | Embedded Only | ||
| PowerPoint Presentations | .pptx / .ppt | Slide Deck Notes & Text | Slide Raster | ||
| Excel & Tabular Data | .xlsx / .csv | Multi-Sheet GFM Matrix | N/A | ||
| Plain Text Files | .txt | Direct Semantic Ingestion | N/A | ||
| Digital Publications | .epub / .fb2 | Chapters, Metadata & TOC | N/A | ||
| Rich & Open Documents | .rtf / .odt | Hierarchy & Formatting | N/A | ||
| Scientific & Technical | .tex / .ipynb | LaTeX Math + Notebook Cells | N/A | ||
| Structured Markup | XML, DocBook, JATS | Schema-Pure Tree AST | N/A | ||
| Academic & Outline | .bib / .opml / Troff | Citations & Node Trees | N/A | ||
| Raster & Vision Images | JPEG, PNG, AVIF, TIFF, GIF, HEIC, BMP, WebP | Visual Spatial Layout | High-Precision OCR (8 Formats) |
How FileMarkd Works
A four-stage ephemeral pipeline engineered for instant conversions with zero local footprint.
Upload Document
Drop any document, spreadsheet, slide deck, image, or technical file directly into the interactive web workbench.
Choose Output
Select Markdown for human/wiki reading, or structured JSON for machine processing and LLM pipelines.
High-Speed Parse
The AST compiler extracts visual layout, calculates column boundaries, triggers OCR if needed, and builds semantic nodes.
Download & Pipe
Copy parsed text immediately, download batch archives, or ingest directly into vector stores via webhook.
Built for Modern Document Workflows
How leading AI teams, technical writers, and enterprises leverage FileMarkd for high-volume ingestion.
AI & RAG Pipelines
Structured chunking with preserved table headers prevents vector embedding degradation, cutting RAG hallucinations by up to 64%.
Git-Backed Documentation
Bulk convert legacy corporate PDF specifications and Word documents into Git-versioned Docusaurus or VitePress repositories.
Automated Data Ingestion
Extract quarterly balance sheets, financial disclosures, and operational logs into clean JSON streams for continuous ELT pipelines.
Research & Academia
Convert two-column arXiv preprints, biological XML structures, and mathematical formulas straight into clean LaTeX-compatible Markdown.
CMS & Wiki Migration
Transition enterprise SharePoint and Confluence silos into clean headless CMS collections without manual copy-paste restructuring.
Developer Tooling
Convert Jupyter notebooks (.ipynb) and raw terminal logs into Markdown files ready for README publishing and CI test reports.
Frequently Asked Questions
FileMarkd natively supports over 40 distinct formats including enterprise document formats (PDF, Word DOCX/DOC, PowerPoint PPTX, RTF, OpenDocument ODT), tabular spreadsheets (XLSX, XLS, CSV, TSV), digital books (EPUB, FB2), scientific formats (LaTeX TEX, Jupyter IPYNB, BibTeX), enterprise markup (XML, DocBook, JATS, OPML), and 8 vision raster formats (JPEG, PNG, AVIF, TIFF, GIF, HEIC, BMP, WebP) with built-in OCR.
Explore Targeted Conversion Hubs
PDF to Markdown
Extract text, math, tables & figures with OCR.
Word to Markdown
Convert .docx with full hierarchy & styles.
Excel to Markdown
Transform sheets & workbooks into GFM tables.
Image to Text OCR
Extract clear text from PNG, JPG, & screenshots.
XML to JSON AST
Lossless schema parsing for enterprise feeds.
Ready to convert your first document?
Experience zero-friction AST conversion. No account or registration required for preview files. Enjoy a pure, instant browser workspace with guaranteed zero server retention.
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All conversions run ephemerally with zero data retention. Your files are never cached or stored on disks.