How to compress a PNG
- 1Choose one or more JPG, PNG, or WebP images from your device.
- 2Set a target file size, output format, quality level, and optional maximum width.
- 3Compress locally in your browser, then download each image or one ZIP file.
Free · No sign-up · No upload
Compress PNG images while keeping files local
Reduce PNG file size for screenshots, transparent graphics, UI assets, and website images. Compression runs in your browser, so selected files stay on your device.
- PNG compression for screenshots and transparent images.
- Free to use with no sign-up, email, or account required.
- No server upload: selected image files stay on your device.
- Batch ZIP export for forms, email, websites, and repeat upload tasks.
Compress images
Free JPG, PNG, and WebP compression in your browser.
Best effort in KB. Use 0 to disable; lower max width if needed.
FAQ
Are my images uploaded to PicZip?
No. PicZip compresses selected images in your browser. Your image files are not uploaded to a PicZip server for compression.
Is PicZip free to use?
Yes. The core image compressor is free to use and does not require an account, email address, or subscription.
Which image formats are supported?
PicZip supports JPG, PNG, and WebP images. You can keep the original format or choose a different output format when smaller files matter.
Can I compress multiple images at once?
Yes. You can add multiple files, compress them in sequence, and download the results as one ZIP file.
Why does a target size sometimes need lower quality?
A strict target like 100KB may require a lower quality value or smaller dimensions, especially for large photos with many details.