Compress PNG Online Free
PNG files are perfect for transparency, sharp text, and graphics — but they can be large. Switch & Shrink compresses your PNGs without losing transparency or sharpness. Upload up to 20 PNGs at once, adjust compression, and download smaller files in seconds. Free, no sign-up required.
Use the tool — freeFeatures
How to Compress PNG
- 1Upload your PNG files by dragging them onto the page or clicking the upload area.
- 2Use the quality slider to control compression level.
- 3Click Convert to process your files.
- 4Preview the results and download your compressed PNGs.
PNG (Portable Network Graphics) is the go-to format for images that need transparency, screenshots, logos, and graphics with sharp edges. However, PNG files can be significantly larger than JPG or WebP because PNG uses lossless compression by default. Our PNG compressor reduces file sizes by optimizing the compression algorithm and reducing the color palette where possible, all while preserving the transparency that makes PNG special. For even greater size reduction, consider converting your PNGs to WebP — WebP supports transparency just like PNG but typically produces files 25–35% smaller. Switch & Shrink makes it easy to try both: compress as PNG, then switch to WebP if you need even smaller files. All processing is secure, and files are deleted after download or automatic expiry.
Frequently Asked Questions
Will compressing a PNG remove transparency?
No. Our compressor preserves the alpha channel (transparency) in your PNG files. Transparent backgrounds remain intact after compression.
Should I convert my PNGs to WebP instead?
If your audience uses modern browsers (all major browsers now support WebP), converting to WebP can save an additional 25–35% in file size while maintaining transparency.
How much can I reduce PNG file size?
Simple graphics and logos can often be compressed by 50–70%. Complex photographs saved as PNG may see 20–40% reduction. Converting to WebP typically yields even better results.