PNG to JPG Converter
Convert PNG images to JPG online for free. Batch conversion in your browser, no upload limits and no credits used.
Converting PNG to JPG trades two things for a much smaller file: transparency, which JPEG cannot store at all, and exactness, because JPEG is lossy where PNG is not. For a photograph that is a good trade. For a logo it usually is not.
Transparency does not survive
JPEG has no alpha channel, so there is no way to record "this pixel is see-through". Every transparent pixel has to become some solid colour, and the encoder picks one — commonly white, sometimes black. A logo with a transparent background becomes a logo sitting on a rectangle.
- If the PNG has transparency you intend to keep, convert to WebP instead — it supports alpha and is smaller than PNG.
- If the transparent area is going to sit on a known solid background anyway, JPEG is fine.
- Check the edges after converting: anti-aliased edges against transparency often show a fringe of the fill colour.
Why the file collapses in size
PNG stores every pixel exactly, which for a photograph means faithfully recording sensor noise. JPEG is allowed to discard detail the eye will not miss. On photographic content the same image is commonly five to ten times smaller as a JPEG, with no visible difference at normal viewing size.
When to keep the PNG
Screenshots, interface captures, charts, and flat illustrations are mostly hard edges and flat colour — exactly what JPEG handles worst. Converting them produces visible halos around text and blocking in flat areas, often while barely saving space. PNG is the right format for that content; compress it instead.
- Photographs and photographic textures → JPG is the right call.
- Text, screenshots, logos, line art → keep PNG.
- Needs transparency → PNG or WebP, never JPG.
Frequently asked questions
What happens to a transparent background?
Will converting to JPG reduce quality?
Why is the JPG so much smaller than the PNG?
Can I convert the JPG back to PNG afterwards?
What to do next
This tool is free. When you need more than file housekeeping, these pick up where it stops.