Překresleno.cz: Convert images without uploads (WebAssembly-powered)
If you’ve ever used an “online image converter”, you’ve probably had the same two concerns: privacy (do I really want to upload personal photos?) and speed (why is this taking so long?). This project exists to remove both trade‑offs by doing the work where your images already are: inside the browser.
The app is a modern image converter that runs entirely client-side. You drop in images (including iPhone HEIC/HEIF and camera RAW files), choose an output format and settings, and download the results—individually or as a ZIP. No uploads. No accounts. No waiting on a server.
Try it on Překresleno.cz.