How do I compress a PNG online for free?
Open Tokitool’s Image Compressor, drop the PNG, pick PNG/JPEG/WebP output, and download when the size looks right. Nothing is uploaded to a server.
Image compression
Compress a PNG Online
Need to compress a PNG or reduce PNG size for email, a form, or a website? Do it here, free, private, no upload.
Open the Image CompressorWhat to expect
Photograph saved as PNG8.4 MB
Same photo as JPEG at quality 80520 KB
How to use
How to compress a PNG online
Need to compress a PNG or reduce PNG size for email, a form, or a website? Do it here, free, private, no upload.
- Add your PNG. Drop your .png file onto the compressor.
- Choose output. Keep PNG for lossless graphics, or switch to JPEG/WebP when you need a much smaller file.
- Review. Compare the before/after size and preview sharpness.
- Download. Save the optimised file for your form, email, or site.
How to compress and reduce PNG file size
PNG is lossless and supports transparency, which makes it ideal for logos, icons, UI screenshots, and graphics with hard edges. That same lossless design is why a PNG can feel huge compared with a JPEG of the same photo—often several megabytes for a single screenshot or camera export.
If your “PNG” is really a photograph (camera roll, selfie, product shot, passport scan), the fastest way to shrink it is to convert to JPEG or WebP in the compressor. You keep the look people care about and often cut 70–90% of the bytes. Forms that ask for “photo under 50 KB” almost never need PNG.
If you need transparency (cutouts, logos, stickers, UI mockups), stay on PNG or switch to WebP with alpha. WebP usually beats PNG on size while keeping the clear background. Compare both outputs before you commit to a site asset.
Practical split: use PNG (or WebP) for sharp graphics and text; use JPEG for photos and ID uploads. After converting a photo PNG to JPEG, open Compress image to 50 KB if a portal still rejects the file for size.
Tokitool’s Image Compressor runs locally: drop the PNG, choose an output format, watch the size drop, and download. No account, no signup, nothing uploaded to a server.
Frequently asked questions
Why is my PNG so large?
PNG stores every pixel losslessly. Photos saved as PNG are especially heavy, converting to JPEG or WebP shrinks them a lot while looking similar on screen.
Can I keep transparency when I reduce PNG size?
Yes. Keep PNG, or convert to WebP, which also supports transparency at a smaller size.
PNG vs JPEG for photos, which should I use?
Use JPEG (or WebP) for photographs when file size matters. Keep PNG for graphics, text screenshots, and anything that needs a transparent background.
How do I get a PNG under 50 KB?
If it is a photo, convert to JPEG first, then use the Compress image to 50 KB workflow. True logos with transparency may need WebP or a smaller canvas; a complex full-colour PNG may not hit 50 KB without visible loss.
Is anything uploaded?
No. The PNG is processed entirely in your browser.
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