Compress PNG
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JPG - PNG - WebP - AVIF - HEIC
Compress PNG
PNG works differently from JPG in a way that actually matters for compression: PNG supports transparency and uses lossless compression by design, which is exactly why PNG files are often much larger than a JPG at the same pixel dimensions. Reduce image size png here means reducing that overhead — stripping unnecessary color data and metadata — without necessarily discarding visual detail the way JPG compression does.
Why PNGs Get Large in the First Place
A PNG screenshot, logo, or graphic with a lot of colors or fine gradients stores more data than a simple, flat-color image — and because PNG compression is lossless, it can’t shrink a complex image the same way JPG’s lossy approach can. The size mostly comes down to color complexity and transparency, not a quality percentage the way JPG has.
How to compress a PNG:
- Upload your PNG file.
- The tool reduces file size through optimization rather than a visible quality trade-off, since PNG isn’t adjusted the same way JPG is.
- If the image doesn’t actually need transparency, consider converting to JPG or WebP instead — see Convert Image — since both usually produce a meaningfully smaller file for a photo that doesn’t need a transparent background.
- Download.
When PNG Is the Right Choice — and When It Isn’t
Keep PNG when you need transparency (logos, icons, overlays) or when the image is mostly flat color and simple shapes (screenshots of text, simple graphics), since PNG handles those well. For photos with lots of color variation and no transparency need, JPG or WebP will almost always produce a smaller file at a comparable visual result — reduce image size png is often better solved by converting the format entirely rather than compressing within PNG.
Frequently Asked Questions
Why is my PNG so much bigger than a similar JPG?
PNG is lossless and supports transparency, which means it can’t discard detail the way JPG does — it’s simply a heavier format for photo-like content.
Will compressing a PNG affect transparency?
No — transparency is preserved; the compression optimizes the underlying data rather than touching transparent areas.
Should I convert my PNG to JPG instead of compressing it?
If you don’t need transparency, yes — it will usually produce a smaller file. See Convert Image.
Related tools: Compress Image · Compress JPG