Free Online PNG Resizer
Resize PNG images while preserving transparency and lossless quality. Perfect for logos, graphics, and images requiring transparency.
Resize Summary
All processing happens in your browser, no uploads.
How To Resize PNG Image Online
Select PNG Graphics
Drop high-definition transparent PNGs or logos onto the target block. We process these safely via local memory.
Define Constraints
Input target pixel heights or switch to percentage scales. Alpha channel masks will shrink beautifully.
Export Transparent Assets
Retrieve fully scaled visuals. If needed, toggle background layers directly into your outputs before downloading.
TIP: PNG format is perfect for logos and graphics with transparency. Use fill mode for exact dimensions, or enable aspect ratio to maintain proportions. Export to PNG keeps transparency, or convert to JPEG/WebP for smaller file sizes.
Why Resize PNG?
Resizing PNGs helps deliver crisp UI graphics and logos at the right dimensions without bloating pages. Smaller, exact-size assets improve Core Web Vitals and SEO while preserving transparency.
Tip: Publish responsive images with exact sizes to reduce CLS and improve perceived performance.
Perfect Size for Every Platform
Alpha Channel Support
Whether replacing the background with custom RGB injections or retaining your masking, the alpha gradient never distorts.
Perfect Borders
Hard icons and CSS web graphics scale beautifully without smudging your exact dimensional outlines.
Memory Efficient
PNGs frequently swell. Lock the image down to exact layout bounds to massively trim Web-Vitals loading speeds.
Quality vs Size Guide
Different output formats produce different file sizes. AVIF offers the smallest files, followed by WebP and JPEG. Adjust the quality slider to see how it affects file size.
Sample: Full HD Image (1920x1080)
Quality Recommendations
Professional prints • Portfolio • Minimal compression
Web images • Social media • Best balance
Thumbnails • Previews • Smaller file size
Tiny previews • Placeholders • Not recommended
Frequently Asked Questions
No. If you keep the output format as PNG, transparent backgrounds remain transparent.
JPEG does not support transparency, so transparent areas will be replaced with a background color (default #ffffff).
Yes, but upscaling may reduce sharpness. You can disable the Prevent upscaling option if needed.
Yes. Resizing runs in your browser and your images are not uploaded to a server.