Online Image Resizer
Resize images by percentage or exact pixel dimensions. Maintain aspect ratio or set custom dimensions. Batch resize multiple images simultaneously.
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Image Resizing Guide
Image resizing is one of the most common image editing tasks — whether you're preparing photos for a website, creating thumbnails, or optimizing images for social media. Understanding the different methods helps you get the best results.
Percentage Scaling
Scaling by percentage maintains the exact aspect ratio. 50% reduces both dimensions by half (resulting in 1/4 the total pixels). 200% doubles dimensions. This is the safest method when you want to preserve the original composition.
Exact Dimensions
Set precise pixel dimensions. When aspect ratio lock is off, the image stretches to fit. Useful for creating banners, thumbnails, or meeting specific platform requirements (e.g., 1080x1080 for Instagram).
Resampling Methods
Bilinear interpolation produces smooth results for photos and continuous-tone images. Nearest-neighbor preserves hard edges and is ideal for pixel art and screenshots where you don't want any blurring.