How to convert a PNG to JPG (and when you should)
PNG and JPG both show up constantly, but they're built for different jobs, and converting from one to the other isn't automatically a good idea. Here's what actually changes when you convert, and when it's worth doing.
The core difference
PNG is lossless, every pixel is stored exactly, with no quality degradation, and it supports transparency. That makes it the right choice for screenshots, logos, diagrams, and anything with sharp text or hard edges. The tradeoff is file size: PNG compresses well for flat-colour graphics but poorly for photographic detail.
JPG is lossy, it throws away some information to achieve much smaller file sizes, using compression tuned for photographic content (smooth gradients, lots of colour variation). It has no transparency support at all.
When converting PNG to JPG makes sense
- A photo got saved as PNG by mistake. This is common and usually harmless to fix, a photographic image gains little from PNG's lossless storage but pays a real size penalty for it.
- You need a smaller file for web or email and the image doesn't need transparency.
- The destination requires JPG specifically, some upload forms and systems only accept it.
When you should not convert
- The image has transparency. Converting to JPG fills every transparent area with a solid colour (usually white), which is often not what you want for a logo or an icon meant to sit on different backgrounds.
- It's a screenshot, diagram, or anything with text or sharp edges. JPG's lossy compression tends to create visible fuzziness or "ringing" artifacts around hard edges and small text, exactly the content PNG handles best.
How to tell which one you already have
If the file extension isn't visible, the quickest check is the file properties, most operating systems show the format there. As a rule of thumb, PNGs are more common for anything created digitally (screenshots, exported graphics, images with transparency), while JPG is the default for photos straight from a camera or phone. If a "photo" is unusually large for its dimensions, there's a decent chance it's actually a PNG.
Converting more than one at a time
If you have a batch of PNGs to convert, you don't need to do them one by one, the tool accepts multiple files at once, applies the same format and quality setting to all of them, and gives you a download link for each result.
What about going the other way, JPG to PNG?
This is less common, but worth addressing: converting a JPG to PNG doesn't undo any quality loss the JPG already has. PNG will store whatever pixels the JPG currently has losslessly from that point forward, but it can't reconstruct detail that JPG's compression already threw away. The only reason to do this conversion is if a specific tool or workflow downstream requires a PNG file extension, not to "restore" quality.
How to convert
- Open Convert Image Format and add your PNG file(s).
- Set the output format to JPG.
- For photos, a quality setting of 85–90% preserves nearly all visible detail while still giving a meaningfully smaller file than the PNG original.
- Download the result.
Ready to convert?
Open Convert Image FormatFrequently asked questions
Will converting PNG to JPG reduce quality?
Yes, some quality loss is inherent since JPG is a lossy format. For photographic content at a high quality setting it's usually not visible to the eye; for graphics, text, or sharp edges, it's more noticeable.
What happens to transparent areas when converting to JPG?
They get filled with a solid colour, usually white, because JPG has no alpha (transparency) channel at all. This tool does that automatically.
Can I convert a JPG back to PNG afterward?
Technically yes, but you won't recover any detail lost during the JPG compression, the loss only goes one direction. Converting back to PNG just locks in whatever quality the JPG already has.