PNG to JPG: trade invisible perfection for visible speed
PNGs are wonderful right up until you try to send one. A phone screenshot weighs 2–4 MB, a full-page capture can hit 10, and a camera-style image saved as PNG becomes an email-bouncing monster. For photographs and screenshots destined for sharing, JPG delivers the same picture to the human eye at a tenth of the weight. This converter turns PNGs into quality-controlled JPGs — singly or in batches — right in your browser, with a quality slider so you choose the size/fidelity balance.
How to convert PNG to JPG
- Drop your PNG files into the tool.
- Set the quality slider — 92% for near-identical results, 75–85% for serious size savings.
- Click Convert; results list their new sizes, with Download all for batches.
The transparency question — answered before you ask
JPG has no concept of transparency, so any transparent regions in your PNG are flattened onto a white background during conversion. For screenshots and photos this is irrelevant (they have no transparency). For logos and UI elements it matters: a white-flattened logo on a dark website looks like a sticker. Keep transparent assets in PNG or convert them to WEBP, which keeps the alpha channel and shrinks the file.
Choosing a quality level like you mean it
The slider maps directly to JPG's lossy compression. At 92%, differences from the PNG are invisible without a magnifier — choose it when in doubt. At 80%, files shrink dramatically while photos still look excellent; fine single-pixel lines (think dense spreadsheets in screenshots) may soften slightly. Below 70%, compression artefacts become hunt-able around high-contrast edges — acceptable for casual sharing, wrong for anything professional. Because conversion is local and instant, testing two settings costs you ten seconds.
Where the savings go to work
- Email attachments: ten screenshots at 3 MB each bounce; the same ten as JPGs sail through at ~3 MB total.
- Web pages: hero images in PNG are a pagespeed crime; JPG (or better, WEBP) fixes the metric that matters.
- Cloud storage: archives of screenshots shrink 80–90% with no organisational effort.
- Messaging apps: smaller files mean faster sends and less mobile data.
Same picture, fraction of the bytes, zero uploads — the most practical conversion in the image world, done properly.
Quick reference
| Property | Detail |
|---|---|
| Input | PNG images |
| Output | JPG with adjustable quality (40–100%) |
| Transparency | Flattened to white (JPG has no alpha) |
| Typical savings | 70–90% smaller than the PNG |
| Recommended quality | 92% safe default, 80% for web/email |
| Batch support | Yes, with Download all |
| Processing | 100% in-browser, no upload |
Frequently asked questions
My logo's transparent background turned white — why?
JPG cannot store transparency, so transparent pixels must become a colour, and white is the standard. For assets that need transparency, stay with PNG or convert to WEBP instead.
What quality setting should I use?
Use 92% unless you have a reason not to — it's visually lossless for almost all content. Drop to 80% when file size matters (email, web); avoid going under 70% for anything you'd show a client.
How much smaller will my files get?
Screenshots and photos typically shrink 70–90%. The exact figure depends on content: smooth gradients compress best, dense fine detail least. Each converted file's new size is shown in the results list.
Is it better to convert PNG to JPG or to WEBP?
If every viewer uses a modern browser or app, WEBP wins: smaller than JPG and it keeps transparency. JPG remains the choice when ancient software or maximum compatibility is in play.