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Convert PNG to JPEG (Portable Network Graphics to JPEG)

Convert PNG to JPEG online. Drop a Portable Network Graphics and get a JPEG back at roughly 9% of the original byte cost. No sign-up, nothing saved.

Upload a PNGSee sample PNG to JPEG conversions
  • Visual parity on photos
  • No account required
  • Nothing saved
The same image as PNG at 4.4 MB and JPEG at 382 KB, the JPEG is smaller at visual parity.The same image as PNG at 4.4 MB and JPEG at 382 KB, the JPEG is smaller at visual parity.

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Oversikt

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.

Med et blikk

PNG to JPEG at a glance

Tallene og avveiningene du trenger før du forplikter deg.

  • Byte savings

    On photographic content, JPEG reaches PNG-equivalent visual quality at roughly 9% of the byte cost. Smooth gradients compress best.

  • No transparency

    JPEG flattens alpha against white. If transparency matters, pick a target that supports alpha (JPEG does not).

  • Sharp edges degrade

    Screenshots, UI mocks, and dense-text images show visible JPEG artifacts around sharp edges. Stay on PNG for those sources.

  • Universal browser support

    JPEG covers roughly 100%% of 2026 browsers and plays in every email client, CMS, and print workflow without fallback.

  • Codec era

    JPEG was standardised in 1992. Its age is the reason it plays everywhere and the reason modern codecs beat it on byte cost.

  • Modern alternative

    For a modern-browser audience, AVIF or WebP typically beat JPEG by a further 20-50% at the same visual quality. Consider those targets instead.

  • Privacy model

    Your PNG is held only while we encode. The JPEG is deleted the moment you fetch it. Nothing is saved on our servers.

Arbeidsflyt

Hvordan det fungerer

Tre trinn, vanligvis ferdig innen fem sekunder.

  1. 1

    Upload a PNG

    Drop a PNG up to 25 MB, or paste from the clipboard. No sign-up, no credit card, nothing tied to an account.

  2. 2

    We encode it as JPEG

    We encode your PNG to JPEG at a default quality that targets visual parity on photographic content. Transparent pixels flatten against white; everything else converts cleanly.

  3. 3

    Download your JPEG

    Your JPEG comes back on a one-time download link. Fetch it and the file is deleted; never come back and the file is deleted anyway.

Eksempler

Se det i aksjon

Dra hver glider for å piksel-titte før og etter.

A 4.6 MB lossless PNG converts to a 372 KB JPEG at visual parity on photographic content.A 4.6 MB lossless PNG converts to a 372 KB JPEG at visual parity on photographic content.
A 4.6 MB lossless PNG converts to a 372 KB JPEG at visual parity on photographic content.
A product photograph at 4% of the source weight stays faithful to the source PNG. The JPEG codec compresses smooth gradients brilliantly.A product photograph at 4% of the source weight stays faithful to the source PNG. The JPEG codec compresses smooth gradients brilliantly.
A product photograph at 4% of the source weight stays faithful to the source PNG. The JPEG codec compresses smooth gradients brilliantly.
Sharp-edge sources degrade harder: a UI mock at 2.5 MB PNG to 155 KB JPEG shows where PNG is the better choice than JPEG.Sharp-edge sources degrade harder: a UI mock at 2.5 MB PNG to 155 KB JPEG shows where PNG is the better choice than JPEG.
Sharp-edge sources degrade harder: a UI mock at 2.5 MB PNG to 155 KB JPEG shows where PNG is the better choice than JPEG.
Personvern

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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.

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Glossary for PNG and JPEG

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FAQ

Vanlige spørsmål

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Relatert lesing

Related reading on PNG, JPEG, and web delivery

Andre verktøy som passer godt sammen med dette.

  • Browse all format convertersSee the full set of PNG and JPEG tools on BouseMutton, including compression, EXIF stripping, and resize.
  • Portable Network Graphics -> WebPAlso converting Portable Network Graphics to WebP? This tool handles the same source in a different target format, for cases where the codec choice differs.
  • WebP -> JPEGRun WebP through this tool before or after conversion to JPEG, depending on the workflow step you are at.
  • Compress imageShrink an already-converted image further without changing its format, for bandwidth-constrained pages.

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