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api-design.md · stored locally
# API design
## Goals
- Predictable errors
- Stable pagination
- Useful observability
## Contract
```json
{
"status": "ok"
}
```
API design
Goals
- Predictable errors
- Stable pagination
- Useful observability
Contract
{
"status": "ok"
}Ln 14, Col 118 words · 124 chars
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From source file to useful draft in three steps
The converter handles extraction; the editor keeps you in control of the final structure and wording.
- 01
Upload a supported file
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- 02
Convert its useful structure
A service extracts readable headings, paragraphs, lists, tables, links, and data where the format allows.
- 03
Edit the new Markdown draft
The result opens automatically as a separate local document. Review, rename, copy, or download the complete .md file.
The editor workspace
Write, review, and ship Markdown without tool switching
Start from an empty document, import an existing .md file, or open a conversion result as a separate draft. The same workspace carries it through cleanup and download.
Explore the Markdown editor →Local autosave
Keep separate drafts on this browser without putting their content in a URL.
Safe rendering
Preview converted Markdown through a sanitized output boundary.
Fast cleanup
Normalize blank lines, heading levels, and list spacing with undo available.
Import and export
Open existing Markdown, copy source, or download the current document as .md.
Focused controls
Use undo, redo, word counts, dark mode, responsive views, and keyboard shortcuts.
Conversion examples
Structure that becomes easier to reuse
PDF → .md
Input
Fixed report pages
Result
Headings, paragraphs, lists, and reviewable tables
DOCX → .md
Input
Word styles and office formatting
Result
A repository-ready documentation draft
XLSX / CSV → .md
Input
Rows, columns, and worksheet snapshots
Result
Compact Markdown tables beside an explanation
Conversion preserves useful document structure rather than precise layout. Scans, complex tables, embedded media, diagrams, and multi-column reading order may need manual work.
Built for technical work
Useful when documents need to join a developer workflow
Documentation migrations
Move a Word handbook or HTML knowledge base toward version-controlled, reviewable source.
Repository context
Turn a specification or project brief into a draft README, ADR, issue, or implementation note.
Data snapshots
Bring a small spreadsheet, CSV export, JSON response, or XML sample into human-readable documentation.
Presentation handoffs
Extract slide text into a linear outline that can become notes, an article, or technical reference material.
privacy-first boundary
Temporary file processing. Local document control.
No public document URLs
Opaque local IDs handle drafts; filenames and content do not become route data.
Immediate cleanup
Uploaded data exists for conversion and temporary working data is removed afterward.
No remote URL fetching
The public endpoint accepts validated uploads instead of user-controlled remote locations.
Local recent documents
Review and delete drafts on this browser, with clear-all controls when you are finished.
Format-specific guidance
Know what each conversion can—and cannot—carry over
Each guide covers preservation, limitations, a real example, cleanup tips, and answers specific to that source format.
.pdf
PDF to Markdown
Extract readable text and document structure from digital PDFs.
.docx
Word to Markdown
Turn Word styles, paragraphs, lists, and tables into Markdown.
.pptx
PowerPoint to Markdown
Create an editable outline from slide text and structure.
.xlsx · .xls
Excel to Markdown
Represent workbook data as readable Markdown tables.
.html · .htm
HTML to Markdown
Reduce semantic HTML content to portable Markdown.
.csv
CSV to Markdown
Convert rows and columns into a Markdown table.
.json
JSON to Markdown
Make nested keys and values easier to read and annotate.
.xml
XML to Markdown
Bring XML structure and text into an editable document.
.epub
EPUB to Markdown
Extract chapters and reading-order content from EPUB files.
Learn and improve
Build a cleaner Markdown workflow
PDF to Markdown for AI
Prepare cleaner source context and avoid unnecessary token use.
What is Markdown?
Understand the plain-text model and where it fits.
Markdown syntax
Learn headings, lists, links, code, tables, and tasks.
Markdown for developers
Build docs that work with repositories and code review.
Markdown vs HTML
Compare authoring simplicity with web semantics and control.
Conversion best practices
Prepare sources, minimize risk, and review output.
Clean up converted Markdown
Repair structure in a predictable editing pass.
Frequently asked questions
Before you upload or start writing
Clear expectations make document conversion more useful and easier to review.
Which files can I convert to Markdown?
The allowlist includes PDF, Office, HTML, text and data files, EPUB, JPEG/PNG, Outlook MSG, ZIP, Jupyter notebooks, and saved RSS/Atom feeds. Audio transcription is not enabled because it requires an external speech service.
What happens after a successful conversion?
The complete result is saved as a new local document and opens automatically in the Markdown editor. Your existing draft is kept separate, and the source basename becomes the .md filename.
Are uploaded files retained?
Files are processed temporarily for the conversion request and temporary working data is removed immediately afterward. Responses are not publicly cached, and filenames or document contents are not placed in URLs.
Does conversion reproduce the original layout exactly?
No. The goal is useful Markdown structure, not pixel-perfect layout. Complex tables, columns, charts, embedded media, and presentation styling may require manual cleanup.
Can the converter read scanned PDFs or text inside images?
Yes. JPEG and PNG uploads use local English OCR, and PDF pages without enough selectable text automatically use the same OCR fallback. OCR results still require review.
Where are editor drafts stored?
Drafts are stored locally in your browser so they can survive navigation and refresh. Local storage is not a backup, so download important .md files or commit them to a repository.
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