Image Resizer
Resize any image to exact pixel dimensions or a percentage, with an aspect-ratio lock and JPEG, PNG, or WebP export.
Processed locally in your browser — nothing is uploaded.
Image Resizer
Files are processed entirely in your browser — nothing is uploaded to any server.
About Image Resizer
Drop in an image, type a new width or height, and download the result. The aspect-ratio lock keeps proportions intact while you edit either dimension, and the 25/50/75% presets handle the common shrink-to-fit cases in one click.
The resized image can be exported as JPEG, PNG, or WebP, with a quality slider for the lossy formats. Before-and-after dimensions and file sizes are shown so you can see exactly what you are saving.
Common uses
- Shrink a camera photo to fit an upload limit
- Produce an exact-size thumbnail or avatar
- Scale screenshots down to 50% for documentation
- Convert to WebP while resizing to cut page weight
Example
Input
4032×3024 photo, width set to 1600, JPEG at 85%
Output
1600×1200 JPEG, typically a fraction of the original size
Limitations
- Resampling uses your browser's canvas scaler; upscaling cannot add real detail.
- Animated GIFs are flattened to their first frame.
Frequently asked questions
Are my photos uploaded anywhere when I resize them?
No. Resizing happens on a canvas element in your browser, and the image never leaves your device — nothing is transmitted or stored on a server, so private photos stay private.
Can I make an image bigger without losing quality?
Not really. Upscaling only interpolates between existing pixels, so it cannot add detail that was never captured — the result looks softer the further you enlarge. For a sharp large image, start from a higher-resolution original.
How do I resize an image without stretching it?
Keep the aspect-ratio lock enabled. When it is on, editing the width automatically recalculates the height (and vice versa) from the original proportions, so the image scales without distortion.
Should I export as JPEG, PNG, or WebP?
JPEG suits photos where small file size matters, PNG is lossless and keeps transparency, and WebP usually produces the smallest files of the three with broad modern-browser support. The lossy formats (JPEG and WebP) also give you a quality slider.