Resize PNG Online Free
Change PNG width and height by pixel — transparency preserved, no upload
Drop image here or click to upload
JPG, PNG, WebP, HEIC — max 20MB
You can also paste an image (Ctrl+V)
Why Resize PNG Instead of Converting to JPG?
PNG uses lossless compression — every pixel is stored exactly, with no quality reduction. This makes PNG the right format for images with transparency (logos, icons, cutouts), sharp edges (text, screenshots, diagrams), and graphics where color accuracy matters. Converting these to JPG would introduce compression artifacts around edges and destroy transparency.
When you resize a PNG, the canvas dimensions shrink but the format stays lossless. A 1000×1000px logo resized to 400×400px stays sharp, keeps its transparent background, and produces a smaller file without any quality loss.
When to Use PNG for Resized Images
Logos and brand assets
Logos need transparent backgrounds to sit cleanly on any color. PNG preserves transparency after resizing — the logo downloads at the new size with the alpha channel intact.
UI icons and app assets
Mobile apps and web apps require icons at multiple sizes (16px, 32px, 64px, 128px, 512px). Resize your master PNG icon to each required size for the app store or web manifest.
Screenshots with text
Screenshots of software, websites, or documents contain sharp text edges. PNG preserves this sharpness at any size — JPG would blur the text and make it hard to read.
Digital art and illustrations
Flat-color illustrations, pixel art, and hand-drawn graphics look best in PNG. The lossless format preserves color accuracy and sharp transitions that JPG compression would smear.
PNG vs JPG — Which Format to Use?
| Property | PNG | JPG |
|---|---|---|
| Compression | Lossless | Lossy |
| Transparency | ✓ Yes (alpha channel) | ✗ No |
| Best for | Logos, icons, text, art | Photos, gradients |
| File size (photos) | Large (3–10×) | Small |
| File size (logos/icons) | Small–medium | Larger with artifacts |
| Edge sharpness | Perfect | Slight blur at edges |
| Browser support | 100% | 100% |
Related Tools
- Resize Image — resize any format to custom dimensions
- Compress PNG Online — reduce PNG file size without resizing
- PNG to WebP — convert PNG to WebP for smaller web files with transparency
- PNG to JPG — convert PNG to JPG when transparency is not needed
- Crop to Circle — create circular PNG with transparent background
Frequently Asked Questions
Does resizing a PNG keep the transparent background?▼
Yes. The tool outputs a PNG with the alpha channel (transparency) fully preserved. Logos, icons, and cutout images retain their transparent areas at the new pixel dimensions.
Why is my resized PNG still a large file?▼
PNG uses lossless compression, so file size depends on content complexity. Photos and gradients stored as PNG are large because every pixel is encoded precisely. Try using the Compress PNG tool after resizing, or convert to WebP which achieves 30–50% smaller files with the same visual quality.
Can I resize a PNG without losing the transparent areas?▼
Yes. This tool uses the browser Canvas API with PNG output, which supports the full alpha channel. Unlike some tools that add a white background, this tool keeps all transparent areas transparent in the resized output.
How do I resize a PNG logo for a website?▼
Common web logo sizes are 200–300px wide for headers and 1000–2000px wide for retina-ready display (with CSS max-width constraining it). For favicons, resize to 512×512 and use our PNG to ICO converter to create the .ico file.
Is PNG or WebP better for resized web images?▼
WebP with transparency (lossless WebP) is typically 25% smaller than PNG at the same quality. If your target browsers support WebP (all modern browsers do), convert to WebP after resizing. Use PNG when you need 100% compatibility with older browsers or email clients.
Are my PNG files uploaded to a server?▼
No. All resizing happens entirely in your browser using the Canvas API. Your files are never sent to any server.