# Image Resizer

> Resize images to exact pixel dimensions with optional aspect-ratio lock.

URL: https://uttir.com/image-resizer
Categories: image-tools
Privacy: Your image is resized locally in your browser and never uploaded.

## About

Set a target width and height in pixels and the resizer scales your image using the browser’s high-quality smoothing. Lock the aspect ratio to avoid distortion, or unlock it for exact dimensions.

Output is PNG, so resized graphics stay crisp with no added compression artifacts.

## How to use

1. **Choose an image** — The current dimensions are shown.
2. **Set width or height** — With the lock on, the other axis follows automatically.
3. **Resize and download** — The result is a PNG at your exact dimensions.

## FAQ

### Can I enlarge an image?

Yes, but enlarging cannot add real detail — the browser interpolates pixels, so big upscaling looks soft. Downscaling gives the best results.

### What format is the output?

PNG. PNG is lossless so the resized image is pixel-identical to the source at the new dimensions. Use a separate converter if you need JPG output.

### Does resizing change the file size?

Smaller dimensions usually mean a smaller PNG, but not linearly — a 2000×1000 PNG of flat color can be smaller than a 200×100 PNG of noise. PNG compresses runs of identical pixels.

## Related tools

- [Image Compressor](https://uttir.com/image-compressor) — Shrink image file size with quality and format control, and see the savings before you download.
- [Image Cropper](https://uttir.com/image-cropper) — Crop a precise pixel region from any image.

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For the full HTML page with the live tool, visit https://uttir.com/image-resizer.
This file is the markdown rendering at https://uttir.com/image-resizer.md. See https://uttir.com/llms.txt for a site-wide summary.