About
File conversion that respects your privacy.
Konvrt is a file conversion tool that runs entirely in your browser. No uploads. No cloud processing. No servers touching your data. Just fast, private, local-first conversion powered by WebAssembly.
Privacy by Architecture
Your files are processed in your browser using WebAssembly. Nothing is uploaded. Nothing is stored. We couldn't access your files even if we wanted to.
No Subscriptions
Professional tools should be owned, not rented. Pro and Team plans are one-time purchases — pay once, use forever. No monthly fees, no annual renewals.
Built with Modern Tech
Canvas API and jSquash WASM codecs for image processing, plus Next.js and Convex. Fast, reliable conversion in any modern browser on any device.
Images
JPG, PNG, WebP, AVIF, JXL, GIF, BMP, HEIC, TIFF, SVG, ICO — with quality control, resizing, cropping, and batch processing.
Documents
PDF, DOCX, HTML, Markdown, CSV, JSON, and TXT — with conversion workflows built for practical everyday formats.