Compress a PNG
PNG is usually the heaviest format on a web page, and often for no benefit. This brings one down to a size worth serving.
or drop images here
How it works
- 1
Choose or drag in your PNG files.
- 2
Set the size you want in KB.
- 3
Click Compress and download the result.
Why use this converter
- Usually the biggest single win
PNGs are often the heaviest assets on a page by a wide margin.
- Ideal for screenshots
Interface captures shrink enormously with no visible change.
- You choose the ceiling
Set the KB figure rather than accepting whatever comes out.
- Batch friendly
Compress a whole export folder in one pass.
When to use it
- Screenshots in documentation: Frequently multi-megabyte for something mostly flat colour.
- Design exports for the web: Tools default to PNG whether or not it suits the image.
- Photographs saved as PNG: The worst case — PNG is a poor container for photographic content.
- Reducing page weight: For photographic content a JPEG is a fraction of the size.
PNG is a production format, not a delivery format
PNG is lossless, which makes it the right thing to export from a design tool, edit repeatedly, or archive. Nothing degrades, no matter how many times you save it.
That same property makes it a poor choice for serving to visitors. Lossless compression finds repetition, which is plentiful in flat colour and nearly absent in photographs — so a photographic PNG can be ten times the size of the equivalent JPEG at no visible benefit.
The practical rule: keep PNG as your working copy, serve something lighter. That is what this does.
When to leave the PNG alone
Transparency is the obvious case — logos, icons and anything overlaying another background. Flattening those to white ruins them everywhere except on a white page.
The subtler case is line art, diagrams and text-heavy graphics. JPEG smears exactly the hard edges those depend on, producing a faint halo around lettering. PNG exists for that content, and converting it is a false economy even though the file gets smaller.
Frequently asked questions
Do I get a PNG back?
No, a JPEG. That conversion is how the size reduction is achieved. If you need PNG out, this is not the right tool.
What happens to transparency?
Transparent areas become white, because JPEG has no alpha channel. Keep the original for anything that relies on it.
How much smaller will it get?
For screenshots and photographic PNGs, usually dramatically. Small flat-colour graphics see less benefit because they were already efficient.
Should I convert my logo?
No. Logos generally need transparency and crisp edges, both of which this conversion costs you.