Image Resizer
Resize images by pixel dimensions or target file size — free, and your file never leaves your device.
🖼️
Choose an image or drag & drop here
Supports JPG, PNG, WebP
Aspect ratio locked — untoggle to resize freely
✅ Resized Preview
How to Resize an Image
1. Upload your image by clicking or dragging it into the box above.
2. Choose By Dimensions to set exact width/height in pixels, or By File Size to hit a target KB.
3. Click Resize & Download — the result is generated instantly in your browser.
Frequently Asked Questions
How do I resize an image online?
Upload your image, choose to resize by exact pixel dimensions or a target file size in KB, then click Resize and download the result.
Can I resize an image to a specific KB size?
Yes, switch to the Target File Size mode, enter your desired size in KB, and the tool automatically adjusts quality and dimensions to get as close as possible.
Will resizing reduce image quality?
Reducing pixel dimensions is lossless in terms of clarity at the new size. Reducing file size via compression may slightly reduce quality, visible mainly at high compression levels.
What image formats are supported?
JPG, PNG, and WebP images are supported for both upload and download.
Can I maintain the aspect ratio while resizing?
Yes, the Lock Aspect Ratio option automatically adjusts height when you change width (or vice versa) to prevent distortion.
Is my image uploaded to a server?
No, all resizing happens locally in your browser using the Canvas API. Your image never leaves your device.