THE PIKOZIP IMAGE TOOLKIT

Compress PNG files. Keep transparency.

Compress PNG images online with Smart, Balanced, Lossless or palette modes. Preserve PNG format and transparency, compare results and download a free batch.

On-device processing

Drop your images here

Your image format stays the same. Drag and drop, or choose images below.

Up to 30 images · 10 MB per image

PNG

Output settingsPNG · Same as original · Smart compression · Original dimensions

Customize

Fine-tune your files

Smart compression keeps your file format and searches for a smaller checked result.

Start with a useful profile

Choose a starting point, then adjust the details below.

Settings saved on this device

Save current settings

Saved profiles 0/10

Format conversion profiles are available in the Convert tab. Profiles affect new images. Use “Apply to all images” below to update your current batch. Saved profiles contain settings only; your images are never saved here.

Optimization approach

Same format. Adaptive settings. Smart compression tries candidate settings and checks detail before choosing a smaller result. Review fine text, gradients and transparent edges. Choose Manual and Lossless PNG when decoded-pixel preservation matters. Dimensions stay in place unless you choose a maximum width.

Output format

The original image format is kept. Choose the Convert tab to change formats.

Lossy image qualityAuto-selected

Smaller fileMore detail

Candidate settings are chosen with detail checks. Select Manual to set quality yourself.

Maximum width

Keeps proportions. Never enlarges.

PNG compression

Searches for a smaller PNG with color and detail checks. Review gradients and edges.

Target file size OPTIONAL

Smart processing searches within its detail guard. A size goal is not guaranteed.

Settings apply to new images. Apply them to update the current batch.

PNG compressor

A practical PNG workflow

Bring your PNG files and prepare them for graphics, screenshots, and transparent artwork. Your files stay on your device throughout processing.

Smart PNG compares adaptive color-reduction candidates with detail checks. Choose Manual and Balanced for more conservative color changes, or Lossless to retain decoded pixels at unchanged dimensions. PNG uses its own mode rather than the lossy quality slider.

A detailed photograph can remain large as a PNG. Consider WebP or AVIF when your destination accepts them.

Inspect soft shadows, gradients, and small lettering if you choose palette mode.

Which PNG compression mode should I choose?

Smart PNG tries color-reduction candidates with decoded-detail checks. Balanced limits color changes more conservatively. Lossless PNG preserves decoded pixels when dimensions stay unchanged, while palette mode uses up to 256 colors and can alter gradients. Keep original masters for archival, high-bit-depth and color-critical work.

Can a PNG reach 100 KB without losing quality?

It depends on its dimensions, detail and starting compression. A detailed or transparent PNG may not reach 100 KB with decoded pixels unchanged. Set a target and inspect the result notice. Reduce dimensions only when appropriate; use the Convert tool explicitly if WebP or AVIF is acceptable.

A SIMPLE WORKFLOW

Get started with PNG compressor.

Bring your images.

Choose a file, a batch, or a folder. Your original files remain untouched.

Find your balance.

Set format, quality, width, and an optional target size. Compare your result.

Take the lighter route.

Download one image or the whole batch in a ZIP, with folder paths preserved.

THE DETAILS THAT MATTER

Know your result.

Are my images uploaded?

No image bytes are uploaded. Your browser fetches the image codecs, then processes your selected files locally.

Will the output always be smaller?

Savings vary. A same-format, same-dimension original is retained when it is smaller. Explicit conversions may increase file size, which the result clearly shows.

Can I keep working from the original?

Yes. PikoZip does not overwrite the source file on your device. Keep your original master and download the output as a separate file.

YOUR NEXT STEP

Keep the workflow moving.

LEARN SOMETHING USEFUL

Compression benchmarks

Compare four PNG modes and WebP/AVIF exports with original fixtures, exact file bytes, decoded-pixel checks and a transparent reproduction method.

Explore

LEARN SOMETHING USEFUL

Image compression explained

Understand lossy and lossless image compression, resizing and target file sizes. Learn why 100 KB is a goal and when keeping the original is the best result.

Explore YOUR WORKFLOW

Help center

Search common image optimization questions and troubleshoot your PikoZip results.

Explore

MAKE A LITTLE ROOM

Your next image, a little lighter.

Choose your format. Find your balance. Take it with you.

Start optimizing

What can we help you find?