File conversion · No upload, ever
Convert files without uploading them.
Every converter on this site runs entirely inside your browser. Your files are never sent anywhere — there is no server that could receive them — and each tool carries a live network meter so you can watch the zero for yourself. Turn off your wifi: it still works.
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iPhone photos
HEIC to JPGConvert iPhone HEIC photos to JPG right in the browser — batches welcome, EXIF stripped, works offline.
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Image formats
JPG to PNGRe-encode JPGs as lossless PNGs locally — nothing leaves your device.
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Image formats
PNG to JPGShrink PNGs into JPGs with a quality dial, transparency flattened onto white — all in-browser.
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Image formats
WEBP to PNGTurn WEBP images into PNGs that open anywhere — converted locally, never uploaded.
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Methodology
How nothing leaves your browserThe whole pipeline, the one thing that downloads once, and three independent ways to verify the zero.
Why "no upload" is the whole product
Most online converters are upload services: your photo travels to their server, gets converted there, and a copy exists on someone else's machine — governed by whatever their retention policy says today. For photos of your family, your documents, your whiteboard, that trade is invisible and unnecessary. Browsers have been able to decode, redraw, and re-encode images locally for years; the upload exists for the operator's convenience, not yours.
This site is built the other way around. The tools are static pages that do all their work in the tab, which is why they keep working with the network switched off — and why the privacy claim here is architecture, not policy. A promise can be broken quietly; an architecture can be checked. The methodology page shows you how to check it.