Image Resizer
Resize images online
Drag & drop an image or click to select
Supports JPEG, PNG, GIF, WebP
Preview
Frequently Asked Questions
How do I resize an image to specific dimensions?
Upload your image and enter the target width and height in pixels. Lock the aspect ratio to prevent distortion, or unlock for custom proportions. The tool shows a preview at the new size. Download as JPG or PNG.
What is the best image size for a website?
Hero images: 1920×1080 px. Blog images: 1200×630 px. Thumbnails: 300×300 px. Product images: 800×800 px. Keep file size under 200 KB for fast loading. The tool resizes and compresses simultaneously for web optimization.
How do I resize an image without losing quality?
Downscaling (making smaller) preserves quality well. Upscaling (making larger) always loses some sharpness. For best upscaling results, use bicubic interpolation and limit enlargement to 200%. The tool uses high-quality resampling algorithms.
Can I resize images in bulk?
Yes. Upload multiple images and set a target size. All images are resized to the same dimensions or by the same percentage. Download all as a ZIP file. Useful for preparing product photos, thumbnails, or social media batches.
How do I resize an image by percentage?
Select percentage mode. Enter 50% to halve dimensions (1000×800 becomes 500×400). Enter 200% to double. The tool calculates the new pixel dimensions automatically. Percentage resizing always maintains the original aspect ratio.