How do I compress a PNG without changing it to a JPEG?

Add the PNG and use the quality slider. The download stays a PNG. The slider runs from 1 to 100 and starts at 80. Below 90, the palette starts dropping colors, and from 75 up to that point it uses 256 colors. If the new file is smaller, that is what you download. If it is the same size or larger, the original is returned. The work runs in the browser.

What does the slider change, and is there a kilobyte box?

The slider is the control, from 1 to 100, starting at 80. Below 90, colors start dropping, with 256 colors from 75 upward until you pass under 90. A typed kilobyte target is on the resizer, so this page stays with the slider and with a PNG result. One file at a time. If the attempt is smaller, you get that PNG. Otherwise you get the original back.

Why did I get my original file back?

The compressor keeps the smaller of the two. When the new PNG is the same size or larger, the original is returned, so you are not stuck with a heavier file. Try a lower position on the slider and look at the picture again. Below 90 the palette can shrink, which is when many PNGs finally lose weight. Keep the original until the new one is both smaller and still clear.

Where should I set the slider first?

Start at 80, the default, and look. If you need a lighter file and the picture still looks right, move below 90, where colors start dropping. From 75 to that point the palette is 256 colors. Screenshots and logos often tolerate that more easily than a detailed photograph. Download the smaller PNG, compare it with the original, and only then replace the file you store.

Can I compress several PNGs at once?

The compressor takes one file. Finish it, decide whether the smaller PNG is the one to keep, and then add the next. Each picture gets its own slider position, which matters because a logo and a photo respond differently once colors start dropping below 90. The format stays PNG on every run, in the browser, and an attempt that is larger simply returns that file's original.

Will the download still be a PNG?

Yes. The point of this page is a smaller PNG that is still a PNG. The slider guides how far the palette goes, starting at 80. A result that is actually smaller is the one you download. A result that is the same size or larger gives you the original PNG instead. Keep both in view until you know which file you want to store or send.

Image Compression Guide

Shrink a PNG while it stays a PNG

Keep the file a PNG while you bring the weight down. The slider starts at a practical setting, and you keep a result that is actually smaller.

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Written by Safaat Rahman Siham, Founder & Developer at Convertify4u. Contact us.

Make a PNG smaller and keep the download as a PNG. The image compressor runs in your browser, on one file, and the quality slider runs from 1 to 100 with a starting point of 80. You move that slider, look at the result, and take the file home still wearing the PNG name. That is the whole promise of this page. A smaller PNG that is still a PNG. Below a quality of 90, the palette starts dropping colors so the file can actually shrink while remaining a PNG. At 75 and above, up to that point, the palette is 256 colors. Higher settings stay nearer the original colors. If the new file is smaller, that is the download. If the new file is the same size or larger, the original is what you get back, so you are never handed a heavier PNG and told it was progress. Compare the two before you replace the file you care about. A typed kilobyte box lives on the resizer, not on this compressor. Here the slider is the control. Use it when the picture must remain a PNG because a layout or a handoff asked for PNG specifically, and you still want less weight. Keep the original until you prefer the new one. One file at a time lets you judge a logo, a screenshot, or a diagram on its own terms.

A lighter PNG, still a PNG

The download stays a PNG, which is the reason to use this page instead of converting to a JPEG. The slider runs from 1 to 100 and starts at 80, a middle setting you can nudge after you see the first result. Once quality drops below 90, colors start leaving the palette so the file can shrink, and from 75 upward until that drop the palette is 256 colors. The compressor then keeps whichever file is smaller. If the attempt is the same size or heavier, you receive the original PNG back. There is a single file in the run, in the browser, and the kilobyte field you may have seen elsewhere belongs to the resizer. Judge the picture, then keep the lighter PNG only when you actually prefer it.

How it works

1
Add one PNG
The compressor takes a single file and keeps the result a PNG. Leave the original in place until you prefer the new download.
2
Move the slider from 80
The range is 1 to 100, and 80 is the start. Below 90, colors begin to drop. From 75 up to 90 the palette is 256 colors. Look at the picture.
3
Keep the file that is smaller
If the new PNG is smaller, that is the download. If it is the same size or larger, the original comes back. Compare them before you replace anything.

Use cases

A logo that must stay a PNG

Slide from 80 toward a lighter file and keep PNG. Flat color often shrinks well once the palette starts dropping below 90.

A screenshot for a page or a ticket

Stay on PNG, check that labels are still readable, and take the smaller file when the compressor returns one. The original remains your backup.

A PNG that barely changed

If the new file is the same size or larger, you get the original back. Try a lower slider position, still under the point where the picture stops looking right.

Problems we solve

The download is the same size

The compressor returns the original when the new file is the same size or larger. Lower the slider, look again, and keep the original if the picture suffers first.

You were looking for a kilobyte field

That box is on the resizer. Here you move the quality slider, from a start of 80, and the download stays a PNG.

Image tool ecosystem

Pair our image compressor with Convertify4u converters when you need to normalize HEIC assets or clean a backdrop before you compress image exports.

Related guides

Trust, speed & privacy

Compressed in the browser

One PNG stays on this device while you move the slider. The download is a PNG, and the file you added remains until you replace it yourself.

A heavier result is handed back as the original

You receive the new PNG only when it is smaller. Otherwise the original is what comes back, so the attempt can be judged safely.

Frequently asked questions

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