About ConvertwithMe — Privacy-First File Converter

ConvertwithMe is a privacy-first file conversion tool that runs entirely in your browser. No uploads, no tracking, no limits.

Our Mission

We believe file conversion should be simple, fast, and private. Most online converters upload your files to their servers, store them temporarily (or permanently), and track your usage. ConvertwithMe does the opposite: every conversion happens on your device, using your device's processing power.

How It Works

ConvertwithMe uses WebAssembly (WASM) to run powerful conversion libraries directly in your browser. These are the same libraries used by desktop applications — ImageMagick for image conversions, Pandoc for document conversions, PDF.js for PDF rendering, and pdf-lib for PDF creation. The difference is that we run them in your browser instead of on a server.

Each converter page only loads the specific library it needs. Image converters load ImageMagick, document converters load Pandoc, and so on. This means you're never downloading libraries you don't need. Libraries are cached after the first download for instant access on repeat visits.

Supported Conversions

Image conversions: JPG, PNG, WebP, GIF, HEIC — convert between any supported format
Document conversions: PDF to DOCX, DOCX to PDF, DOCX to HTML
PDF conversions: PDF to JPG, PDF to PNG, JPG to PDF, PNG to PDF

Privacy & Security

Your files never leave your device. Period. The conversion code runs in an isolated browser context, and no file data is ever transmitted over the network. We use HTTPS and Cross-Origin isolation headers for maximum security. We use Plausible Analytics (privacy-preserving, no cookies) for basic usage statistics.

Open Source

ConvertwithMe is built with open-source technologies: SvelteKit, TailwindCSS, ImageMagick WASM, Pandoc WASM, PDF.js, pdf-lib, and mammoth.js. We believe in transparency and open source.