Image tool
Image Resizer
Change an image’s width and height without uploading it. Lock the aspect ratio to avoid stretching. Use a percent or a common preset when you do not need exact pixels.
- Free to use
- Processed on your device
- No account needed
When to resize an image
Resize when a platform asks for exact pixel dimensions, when a photo is far larger than a web layout needs, or when you want to shrink a file before compressing it. Uploading a 6000-pixel camera original to a blog that displays at 800 pixels wastes bandwidth and often trips upload limits. Setting the long edge to the display size first, then compressing, produces a cleaner result than compressing the giant original alone.
This tool lets you set width and height directly and choose whether to lock the aspect ratio. Locking the ratio avoids stretching faces and logos. Unlocking it is useful for forced crops into a square avatar slot, though the dedicated cropper is usually clearer when you need to choose which part of the frame to keep.
Upscaling limits
Browsers can enlarge a small image, but they cannot invent real detail. Upscaling a 400-pixel icon to 2000 pixels will look soft. Prefer exporting at the size you need from the original source when you have it. Downscaling is the reliable direction for photos destined for the web, email, and most forms.
A worked example and help
For a 1200 × 800 source and a 400 × 400 output, Fit adds padding, Crop removes the side edges, and Stretch changes proportions. The result panel reports the actual output dimensions. Enlarging a source does not restore detail.
Related tools
Stay in the browser for the next step — convert, compress, crop, or strip metadata.
- Image CropperCrop images to a custom area, common ratios, or social profile, post, and cover sizes.
- Image CompressorReduce file size in your browser. Set a percent of the original, aim for 100 KB or 200 KB, or compress JPG, PNG, and WebP.
- Rotate & FlipRotate 90°, 180°, or 270° and flip images horizontally or vertically in your browser.
- Image ConverterConvert JPG, PNG, and WebP in either direction: JPG to PNG, PNG to JPG, JPG to WebP, WebP to JPG, PNG to WebP, and WebP to PNG.
FAQ
Does resizing upload my photo?
No. The new size is calculated in your browser and never sent to a server.
Can I enlarge a small image?
Yes, but enlarging can’t add real detail. The result may look softer than the original.
What do the presets do?
50% and 25% scale from the original size. 1080×1080, 1920×1080, and 1080×1920 set exact pixels for common social and HD frames.
Frequently asked questions