PrivaScan

Privacy-first document intelligence for Claude. OCR, barcode reading, document scanning, image classification, and face detection — all processed on-device using Apple Vision. Nothing ever leaves your Mac.

Why PrivaScan?

Most document processing tools send your files to the cloud. PrivaScan runs entirely on your machine using Apple's Vision framework. Your medical bills, contracts, tax forms, and personal documents stay private.

• On-device OCR — Text recognition powered by Apple Vision, no network calls
• Document detection — Automatically finds and crops documents in photos
• PDF extraction — Page-by-page text extraction with language support
• Barcode/QR reading — Decode any barcode type from images
• Image classification — Identify document types before processing
• Face detection — Find faces for PII redaction (detection only, no recognition)

Requirements

• macOS 14.0+
• Swift 6.0+ / Xcode 16+

Install

Claude Marketplace

claude install alpozcan/PrivaScan

Build from source

git clone https://github.com/alpozcan/PrivaScan.git
cd PrivaScan
swift build -c release

The binary will be at .build/release/PrivaScan.

Setup

Claude Code

Add to your MCP config (~/.claude.json):

{
  "mcpServers": {
    "privascan": {
      "command": "/path/to/PrivaScan/.build/release/PrivaScan"
    }
  }
}

Claude Desktop

Add to claude_desktop_config.json:

{
  "mcpServers": {
    "privascan": {
      "command": "/path/to/PrivaScan/.build/release/PrivaScan"
    }
  }
}

Tools

recognize_text

Extract text from an image using on-device OCR.

Parameter	Type	Required	Description
file_path	string	yes	Absolute path to image file
languages	string[]	no	Recognition languages (default: ["en-US"])

Supported formats: PNG, JPEG, TIFF, HEIC

scan_document

Detect document regions in a photo, crop, and OCR.

Parameter	Type	Required	Description
file_path	string	yes	Absolute path to image file
languages	string[]	no	Recognition languages

extract_pdf_text

Extract text from PDF pages using on-device OCR.

Parameter	Type	Required	Description
file_path	string	yes	Absolute path to PDF file
pages	string	no	Page range (e.g. "1-5", "1,3,7")
languages	string[]	no	Recognition languages

read_barcodes

Detect and decode barcodes and QR codes.

Parameter	Type	Required	Description
file_path	string	yes	Absolute path to image file

Supported types: QR, EAN-13, EAN-8, Code 128, Code 39, UPC-E, PDF417, Aztec, Data Matrix

classify_image

Classify an image using Apple's built-in Vision model.

Parameter	Type	Required	Description
file_path	string	yes	Absolute path to image file
max_results	integer	no	Max results to return (default: 5)

detect_faces

Detect faces and return bounding boxes. Useful for identifying PII in documents like IDs or passports. Detection only — no face recognition.

Parameter	Type	Required	Description
file_path	string	yes	Absolute path to image file

Try It

The demo/ folder includes realistic sample documents (medical form, W-2, employment contract, bank statement) for a privacy audit scenario. After setup, try:

Scan all files in demo/ for personal information. Cross-reference what you find across documents and give me a privacy risk report.

See demo/DEMO.md for more prompts.

Privacy

PrivaScan processes everything locally using Apple's Vision framework. No data is sent to any server for OCR, classification, or detection. The only data that leaves your machine is the extracted text that gets passed back to Claude through the MCP protocol — never the original images or documents.

License

MIT