Resize Images Online — Free, Fast, Private
Resize images to exact pixel dimensions or scale by percentage. Maintains aspect ratio to prevent distortion. Works entirely in your browser.
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Drop images to resize
All image formats supported
How It Works
1
Set Target Size
Choose exact pixel dimensions or scale by percentage. Toggle aspect ratio lock to prevent distortion.
2
Drop Your Images
Drag and drop or click to select one or more images from your device.
3
Download Resized Images
Images are resized instantly in your browser. Download each result with the new dimensions in the filename.
Frequently Asked Questions
How do I resize an image to exact dimensions?
Select "By Dimensions" mode, enter your desired width and height in pixels, then drop your image. If you want the image to fit within those dimensions without distortion, keep "Maintain aspect ratio" checked — the image will be scaled to fit within your specified bounds while preserving its proportions.
What does "maintain aspect ratio" mean?
Aspect ratio is the proportional relationship between an image's width and height. When you maintain aspect ratio during resizing, the image scales uniformly — if you make it 50% narrower, it also becomes 50% shorter. This prevents the image from looking stretched or squished.
How do I resize images for social media?
Common social media image sizes: Instagram post (1080x1080), Instagram story (1080x1920), Facebook post (1200x630), Twitter/X post (1600x900), LinkedIn post (1200x627). Enter these dimensions in FileWash and drop your image to resize it perfectly for each platform.
Can I make an image larger (upscale)?
Yes, you can increase image dimensions by entering larger values or using a percentage above 100%. However, upscaling adds interpolated pixels and may make the image look blurry. For best results, resize images to smaller dimensions (downscaling) which preserves sharpness.
Does resizing an image reduce its quality?
Downscaling (making smaller) generally preserves quality well — you are keeping the most important pixel information. Upscaling (making larger) will reduce apparent quality as the software must generate new pixel data. FileWash uses high-quality bilinear interpolation for the best results in both cases.