You save a photo or screenshot and it comes out as a 6MB PNG. The same picture as a JPEG would be well under 1MB. PNG isn't broken — it's just the wrong tool for photographic content, and converting it is the fix.
Why PNG Photos Are So Heavy
PNG is lossless: it stores every pixel exactly. That's perfect for logos and sharp UI, but a photograph has millions of subtly different colours across gradients and textures, and PNG has no efficient way to compress that. JPEG, being lossy, throws away color detail your eye barely registers and gets dramatically smaller.
When Converting PNG → JPG Is the Right Call
Convert when:
- The image is a photo or a screenshot of photographic content.
- You don't need transparency (JPEG can't store it — transparent areas become white).
- File size matters — email, web pages, upload limits.
Keep the PNG when the image has transparency, or is a crisp logo/diagram/text where lossless edges matter.
How to Convert
Open Convert to JPG, drop in the PNG, and export. For even smaller results, follow up with Compress Image and set quality to ~80 — you'll often turn a 6MB PNG into a 300KB JPG with no visible difference.
The Transparency Caveat
If your PNG has a transparent background, converting to JPG fills that area with a solid colour (usually white). If you actually needed the transparency — say for a logo overlay — keep the PNG instead, or reduce its size another way. All conversion happens in your browser, so the file is never uploaded.