Convert PNG to JPEG (Portable Network Graphics to JPEG)

Convert PNG to JPEG. This tool takes a lossless Portable Network Graphics and re-encodes it as a JPEG at a quality that targets visual parity on photographic content, at roughly 9% of the PNG byte cost. The input stays on our side only long enough to encode and is deleted as soon as the JPEG download starts.

JPEG (JPEG) is a lossy codec standardised in 1992 and supported in roughly 100%% of 2026 browsers. Its whole purpose is compressing photographic content into a small payload by discarding detail the human eye is unlikely to notice. For hero images, product photography, and travel snapshots, a well-encoded JPEG looks indistinguishable from the source PNG at normal viewing distance.

PNG (Portable Network Graphics) is lossless: every original pixel is preserved. That makes it a great editor source and a faithful archive, but a heavy delivery format. A typical PNG is materially larger than the same pixels in JPEG, and on the public web every extra kilobyte costs Core Web Vitals score, CDN egress, and mobile battery.

The trade-off is content-dependent. On smooth photographic content, JPEG hits visual parity with PNG at a large byte saving. On screenshots, UI mocks, flat-colour illustrations, or anything with sharp text edges, JPEG artifacts become visible at aggressive quality settings. For those sources, JPEG is the wrong target: stay on PNG, or consider a modern lossless codec such as WebP lossless or AVIF lossless for a smaller lossless file.

When NOT to convert PNG to JPEG: screenshots, UI mocks, and dense-text images (the JPEG codec softens sharp edges). Images with transparency (JPEG flattens alpha against a solid background). Archival masters where every pixel matters (keep the PNG). Modern-browser-only targets where AVIF or WebP would give the same visual quality at half the bytes (convert to a modern codec instead).

Your PNG upload is held only while we encode it. The resulting JPEG comes back on a one-time download link and is deleted the moment you fetch it. Nothing is saved on our side, no account ties the file to you, and the Privacy page lists every byte that touches disk. Converting PNG to JPEG on BouseMutton is a one-shot operation, not a saved artefact.