Free Image Resizer
Resize images online free — set exact pixel dimensions or scale by percentage, with an aspect-ratio lock so nothing ever stretches. Convert between JPG, PNG, and WebP with a quality slider, preview the result live, and download. Everything runs in your browser — your photos are never uploaded.
🔒 Private by design — your image never leaves this browser tab. No uploads, no servers.
How to Resize an Image in 3 Steps
- Step 1: Upload a JPG, PNG, or WebP image from your device.
- Step 2: Type exact width/height in pixels or switch to percentage mode — keep the aspect-ratio lock on to avoid stretching.
- Step 3: Pick your output format and quality, then download the resized image.
Why Use Our Image Resizer?
- Exact pixels or percentage scaling with aspect-ratio lock
- Convert between JPG, PNG, and WebP with quality control
- Live preview with new dimensions and estimated file size
- Private — resizes in your browser, images never uploaded, no signup
Frequently Asked Questions
How do I resize an image?
Upload your image, then either type the exact width and height in pixels or scale it by a percentage (e.g., 50%). Choose your output format and quality, preview the result, and download — done in seconds.
Will resizing reduce the image quality?
Resizing changes pixel dimensions, which naturally trims file weight. Downsizing from a high-resolution original (e.g., a 4000 px phone photo to 1200 px) keeps the image sharp — just avoid resizing up beyond the original size, which adds no real detail.
What is the difference between resize and crop?
Resizing changes the dimensions of the entire image while keeping everything visible at a new size. Cropping cuts away parts of the image. This tool resizes without cropping — and the aspect-ratio lock prevents stretching.
Are my images uploaded anywhere?
No. All resizing happens locally in your browser via the Canvas API — your photos never leave your device, so it is safe for personal and client work.
Can I resize images on my phone?
Yes. The tool works in any modern mobile or desktop browser with no app install and no signup.