CONTEXTCRAFT
ContextCraft app icon

CONTEXTCRAFT

Documents → LLM-ready Markdown

Convert PDFs, Word docs, spreadsheets, CSVs and images into clean Markdown, then hand it straight to Claude, ChatGPT or any app. Everything happens on your phone. Nothing is uploaded.

Privacy Policy
Screenshots
ContextCraft home screen with file picker
Choose files
A PDF queued and converted, showing size reduction
Convert on-device
Raw Markdown output with YAML frontmatter
Clean Markdown
Share sheet offering Claude, ChatGPT and other apps
Share to any app
Conversion history stored only on the device
Local history
Why ContextCraft
Fully on-device
Conversion and OCR run locally. The app has no internet permission, so your documents can't leave the phone.
Built for LLMs
Headings, lists and tables become Markdown. Repeated headers and footers are stripped, with YAML frontmatter on top.
Share-sheet target
Use Share → ContextCraft from any app, one file or many, and send the result on to Claude, ChatGPT or anything else.
Preview & save
Switch between raw and rendered views, copy to clipboard, or save a .md file wherever you like.
Supported formats
InputHow it's converted
PDFText layer with page markers; scanned pages fall back to on-device OCR (up to 60 pages).
DOCXTitle and heading levels, list items and tables.
XLSXOne Markdown table per sheet, with date cells formatted.
CSVDelimiter detection and a Markdown table.
MD / TXTCleaned passthrough.
PNG · JPG · WebP · BMPOn-device OCR (Latin-script text).
Privacy
Privacy Policy →
What the app does, and doesn't do, with your data.