Resize Image by Pixels

How do I resize an image to exact dimensions?

Enter the target width and height in pixels. Enable aspect ratio lock to maintain proportions, or unlock it for custom dimensions. Download the resized image in your preferred format.

What is aspect ratio and why does it matter?

Aspect ratio is the proportional relationship between width and height (e.g., 16:9, 4:3). Maintaining aspect ratio prevents image distortion - objects will not appear stretched or squashed.

How do I resize an image without losing quality?

Use high-quality resampling algorithms (like Pica). When reducing size, quality loss is minimal. When enlarging, some softening occurs but advanced algorithms minimize this significantly.

What size image do I need for a website header?

Standard website headers are typically 1920x600 to 1920x800 pixels. For retina displays, use 2x dimensions. Compress the result to reduce loading time.

How do I resize multiple images at once?

Upload multiple images and apply the same dimensions to all. Download individually or as a ZIP file. Batch processing saves time when preparing images for websites or galleries.

What happens when I make an image larger?

Enlarging images (upscaling) creates new pixels through interpolation. Quality depends on the algorithm used - basic methods cause blur, while advanced resampling produces sharper results.

How do I resize a photo for email without it being too large?

Resize to 1200px width maximum and compress to 70-80% quality. This keeps photos under 500KB while remaining sharp enough for screen viewing. Most email clients limit attachments to 10-25MB.

What is the difference between resize and crop?

Resize changes the overall dimensions of the entire image. Crop cuts out a portion of the image. To fit a specific size without cutting, resize; to remove unwanted areas, crop.