FormatShift

Convert between DOCX, Markdown, HTML and more. Batch convert multiple files at once. Privacy‑first, no cloud uploads required.

FormatShift is a powerful, privacy-first document converter that transforms your files between multiple formats—all processed directly on your device. No cloud uploads, no data sharing, complete privacy.

Key Features

Universal Format Support Convert between 10 document formats including DOCX, Markdown (MD), HTML, JSON, RST, EPUB, ODT, DocBook, LaTeX, and plain text (TXT). Whether you're working with academic papers, technical documentation, or everyday documents, Transmutator handles it all.

Batch Processing Save time by converting multiple files simultaneously. Simply drag and drop your files, select target formats, and let Transmutator process them all at once. Perfect for converting entire document libraries or project folders.

Privacy-First Architecture All conversions happen entirely on your device. Your documents never leave your Mac or iPhone—no internet connection required, no cloud services, no data collection. Your privacy is guaranteed.

Intuitive Drag & Drop Interface The elegant, modern interface makes document conversion effortless. Just drag files into the app, choose your target format, and convert. No complex settings or technical knowledge required.

Native Performance Built with Swift and optimised for macOS and iOS.