Compress PNG Images Online — Free
Free online PNG compression tool. Reduce file size while maintaining quality. Adjust quality settings and optionally resize. No signup required.
How to compress PNG images
- Click Choose file and select your PNG image.
- Adjust the quality slider (lower = smaller file size).
- Optionally set a maximum width to resize the image.
- Click Compress PNG.
- Download your compressed file instantly.
About PNG compression
Compress PNG images to reduce file size while preserving transparency and quality. PNG compression uses optimization techniques to make files smaller without losing any pixels. Great for logos, icons, screenshots, and graphics that need to stay sharp. Optionally resize by setting a maximum width. Free, instant, and secure — files are deleted automatically after 1 hour.
- Lossless optimization — no quality degradation
- Preserves transparency perfectly
- Ideal for logos, icons, and UI graphics
- Optional resize to further reduce file size
- See compression results before downloading
Frequently asked questions
- Is PNG compression lossless?
- Yes. PNG optimization removes unnecessary metadata and uses better compression algorithms, but the pixel data remains identical.
- Will transparency be preserved?
- Absolutely. PNG compression maintains full alpha-channel transparency.
- How much smaller will my PNG be?
- Typically 10-30% smaller, depending on the original file's optimization level.