Convert PNG to JPG

No — that is the whole reason I built this. The conversion runs in your browser using WebAssembly, so your files never leave your device; there is no server in the loop at all. It also means the tool keeps working offline once the page has loaded, and there is no file size limit beyond your device’s memory.

Convert photos, screenshots of photos and scanned images: they shrink dramatically with no visible difference. Keep text-heavy screenshots, logos and anything transparent as PNG or WebP — JPG blurs sharp edges and fills transparency with white.

Photographic PNGs typically drop 70–90% at quality 85. Graphics with large flat-color areas shrink less and can look worse — for those, PNG to WebP is the better target.

Yes — the quality slider re-encodes instantly as you release it, and the size readout updates per file, so you can find the smallest size that still looks right to you.

Where the file is going settles it. Staying on the web → PNG to WebP: smaller than JPG and it keeps transparency. Leaving the web — email, documents, print, older software → JPG, because nothing ever rejects it. On photos WebP beats JPG by roughly 25–35%, so JPG’s one real advantage is universality. That is often exactly the advantage you need.

Anything transparent (the alpha channel flattens to white), interface screenshots full of text (JPEG artifacts smear the letters), and line art or pixel graphics (hard edges ring). Those stay PNG or go to WebP. The PNGs that benefit are photographic — photos saved as PNG carry 5–10× more bytes than they need to.