Drop your image here or click to browse
Supports PNG, JPG, GIF, WebP, BMP, SVG & more
PNG
JPG
GIF
WebP
BMP
SVG
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🎨 Which Output Format Should I Use?
Choosing the right format makes a big difference to file size and quality:
| Format | Best For | Transparency | File Size | Quality Loss |
|---|---|---|---|---|
| PNG | Logos, screenshots, graphics, icons | ✅ Yes | Large | None (lossless) |
| JPG | Photos, realistic images, backgrounds | ❌ No | Small–Medium | Some (adjustable) |
| WebP | Web use, modern browsers, all image types | ✅ Yes | Smallest | Minimal (adjustable) |
🌐 For websites: Use WebP — best quality with smallest size.
🎨 For logos/icons: Use PNG — preserves transparency and sharpness.
📷 For photos: Use JPG — best compression for photographic images.
📖 How to Use the Image Resizer
1
Upload Your Image
Drag and drop any image file into the upload area, or click it to open the file browser. Supports PNG, JPG, GIF, WebP, BMP, SVG, and more.
2
Set Your Dimensions
Choose Pixels mode to enter exact width/height, or Percentage mode to scale by a percentage. Use Quick Presets for common sizes like Instagram posts, HD video, or thumbnails. The 🔒 lock keeps the aspect ratio correct.
3
Choose Format & Quality
Select PNG for lossless output, JPG or WebP for smaller files. For JPG/WebP use the Quality slider to balance file size and sharpness.
4
Resize & Download
Click Resize Image, check the result in the preview, then click Download Resized Image. Use the Compare tab to see a side-by-side slider of original vs resized.
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❓ Frequently Asked Questions
How do I resize an image without losing quality?
The best way to resize without quality loss is to reduce the image size rather than enlarge it. Enlarging an image beyond its original dimensions always introduces some softness. For reductions, use PNG format (lossless) or use JPG/WebP with a high quality setting (90–100%). Enable Smooth Resizing in the options for the best result.
Will resizing an image change its aspect ratio?
Not if the aspect ratio lock is enabled (🔒). When locked, changing the width automatically adjusts the height to maintain the original proportions. If you need exact dimensions that don't match the original ratio, unlock it — but note the image may appear stretched or squished.
What is the difference between PNG, JPG, and WebP?
PNG is lossless — no quality is lost, but file sizes are larger. Best for logos, icons, and images with transparency.
JPG uses lossy compression — some quality is traded for much smaller file sizes. Best for photographs.
WebP is a modern format that offers both lossless and lossy compression with excellent quality-to-size ratios. Best for web use and supported by all modern browsers.
JPG uses lossy compression — some quality is traded for much smaller file sizes. Best for photographs.
WebP is a modern format that offers both lossless and lossy compression with excellent quality-to-size ratios. Best for web use and supported by all modern browsers.
Can I resize a PNG and keep the transparent background?
Yes. Make sure the output format is set to PNG or WebP (both support transparency) and the Preserve Transparency option is checked. If you save as JPG, transparency is not supported and the background will become white or black.
Is my image sent to a server?
No. All resizing happens entirely in your browser using the HTML5 Canvas API. Your image is never uploaded, never stored on our servers, and never seen by anyone. You can disconnect from the internet after loading the page and the tool will still work.
What does the Quality slider do?
The Quality slider (available for JPG and WebP formats) controls the compression level. Higher quality (90–100%) produces sharper images but larger file sizes. Lower quality (50–70%) produces smaller files with some visible compression artifacts. For most purposes, a quality of 80–90% gives the best balance.