Resize PNG Images Online
Resize any PNG in seconds — set exact pixel dimensions or scale by percentage while keeping crisp edges and full transparency. Everything happens in your browser: your images are never uploaded.
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How to resize png
- Drop your PNG. Drop your PNG into the box above, or click to browse.
- Set the size. Type exact width/height in pixels, or pick a percentage. Keep "lock ratio" on to avoid stretching.
- Download. Your resized PNG saves instantly, transparency intact.
Why use ResizeMate
Private
Images are processed in your browser and never uploaded to a server.
Fast
No upload/download round-trip — results are instant on your device.
Free
No signup, no watermark, no limits.
Common PNG sizes
| Use case | Dimensions |
|---|---|
| Favicon | 32×32 / 512×512 |
| Profile picture | 400×400 |
| Web hero image | 1920×1080 |
| Email signature logo | 300×100 |
Keep PNG transparency
Unlike JPG, PNG supports transparent backgrounds. ResizeMate preserves the alpha channel, so logos and graphics stay transparent after resizing.
Frequently asked questions
- How do I resize a PNG without losing quality?
- Resizing down preserves quality well; ResizeMate uses high-quality sampling so edges stay sharp and transparency is kept.
- Does resizing a PNG keep transparency?
- Yes — the transparent (alpha) background is preserved.
- Are my images uploaded to a server?
- No. Resizing happens 100% in your browser; files never leave your device.
- Is it free?
- Yes — free, unlimited, no signup, no watermark.
- Can I resize multiple PNGs at once?
- Yes — use the Bulk Image Resizer to resize many files at once.