Compress PNG Online
Compress PNG images online while keeping transparency when possible. Resize or convert locally in your browser to reduce file size.
Compress PNG Online
Compress PNG Online helps you compress PNG images directly in the browser. It is best for reduce PNG file size for icons, screenshots, and transparent graphics, with local previews and export controls before you save the final image.
How to use this preset
- Upload your image for compress PNG images.
- Adjust quality, dimensions, or output format when those controls are available.
- Preview the browser result, then download the processed image.
Recommended settings
Best for
- reduce PNG file size for icons, screenshots, and transparent graphics
- browser-only image processing
- no server upload
- quick desktop workflow
- common image upload limits
Optimization tips
- Resize large images before lowering quality too far.
- Use JPG or WebP for smaller photo files and PNG when transparency matters.
- If export fails, reduce dimensions or process fewer files at once.
Privacy and browser limits
Tools processes compress PNG images in your browser. Files are not uploaded to a server, but very large images still depend on your device memory and browser canvas limits.
Frequently asked questions
What is the best way to compress PNG images?
Start by reducing dimensions, then adjust quality. This usually gives a smaller file with fewer visible artifacts.
Which format creates the smallest image?
WebP is often smaller for photos, JPG is widely compatible, and PNG is best when transparency or crisp graphics matter.
Can I reduce file size without changing dimensions?
Yes, but the result depends on the image. Quality-only compression works well for photos, while screenshots and graphics may need resizing or format conversion.
Are files uploaded when I compress PNG images?
All work happens locally in the browser; no upload is required.
Can I compress PNG images for free?
Yes. This browser tool is free to use and does not require an account.
Can I preview the result before downloading?
Yes. The page shows browser-generated previews or processed output before you save the final file.