Resize PNG Images Online, Lossless
Resize PNG files while preserving transparency and lossless quality. 100% in your browser — no uploads required.
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How to Resize a PNG File
- Drop your PNG files — Drag and drop or click to select PNG images from your device.
- Set your target size — Choose exact pixel dimensions, scale by percentage, or set a maximum longest edge.
- Download instantly — Click “Resize” and download your resized PNG files individually or as a ZIP.
Why Resize PNG Images?
PNG is the go-to format for logos, icons, screenshots, and any image requiring transparency. Resizing your PNG files helps you:
- Optimise web performance — PNG files can be large. Resizing to actual display dimensions significantly reduces file size without any quality loss.
- Prepare assets for apps and websites — Generate multiple sizes from a single source image for favicons, app icons, and responsive layouts.
- Standardise design assets — Ensure all icons, logos, and UI elements share consistent dimensions across your project.
- Preserve transparency — Unlike JPG, PNG supports full alpha transparency, making it perfect for overlays and compositing.
About the PNG Format
PNG (Portable Network Graphics) uses lossless compression, preserving every pixel exactly. It supports full alpha transparency and is universally supported across all browsers and applications.
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Frequently Asked Questions
- Does resizing a PNG reduce quality?
- PNG uses lossless compression, so no data is lost during encoding. When downscaling, pixel information is reduced, but the remaining pixels are stored perfectly. The visual result is sharp and accurate at the new dimensions.
- Will my PNG transparency be preserved?
- Yes. Our resizer preserves the alpha channel (transparency) when resizing PNG files. If you convert to JPEG output, transparency will be replaced with a white background since JPEG doesn't support transparency.
- Why are PNG files larger than JPG?
- PNG uses lossless compression — it preserves every pixel exactly. JPG uses lossy compression, discarding some data for smaller files. Use PNG when you need transparency or pixel-perfect accuracy; use JPG for photographs where small quality loss is acceptable.
- Can I resize PNG files in bulk?
- Yes. Drop multiple PNG files at once and resize them all in a single batch. For large batches with ZIP download, use our image resizer.
- When should I use PNG instead of WebP?
- Use PNG when you need maximum compatibility (all browsers and apps support PNG) or when editing images that will be re-saved multiple times. WebP offers smaller file sizes but has slightly less universal support in non-browser applications.