Image Resizer - Resize JPG, PNG & WebP Online | ToolFenix

FREE • FAST • PRIVATE

Image Resizer

Change image dimensions instantly in your browser. Scale photos by percentage or exact pixels while maintaining aspect ratio.

100% Free Client-Side Processing Lossless Scaling

Drop your image here

or click anywhere to browse from your device

JPG PNG WebP

Simple Workflow

How to Resize an Image

Quickly scale your photos up or down without installing any software.

Upload Image

Drag and drop your JPG, PNG, or WebP file into the dropzone above, or click to browse files from your device.

Set Dimensions

Type exact pixel values into the width and height boxes, or use the quick preset buttons to scale by percentage.

Choose Format

Select an export format. Use JPG for photos, PNG to keep transparency, or WebP for highly compressed web assets.

Export & Download

Click download to instantly process and save the resized image to your device using your browser's native engine.

Features

Why Use ToolFenix Image Resizer?

100% Client-Side Privacy

Your images are never uploaded to a cloud server. Everything happens securely inside your browser's memory.

Smart Aspect Ratio

Lock the aspect ratio to prevent distortion. Change the width, and the height automatically calculates.

Instant Resizing

Because it runs locally, resizing is instantaneous with zero queue times or upload/download delays.

Direct Clipboard Export

Skip the downloads folder. Copy the resized image straight to your clipboard to paste into documents or chats.

Who Is This Tool For?

Social Media Managers

Resize graphics perfectly for platform-specific dimensions.

Content Creators

Scale down heavy camera photos for blog posts or thumbnails.

Web Developers

Generate @2x and @1x image assets for responsive websites.

Everyday Users

Shrink large photos to meet email attachment size limits easily.

Got Questions?

Frequently Asked Questions

Will resizing my image stretch it?

Not if the "Aspect Ratio Lock" (the link icon) is enabled. By default, it is locked. This means if you change the width, the height adjusts automatically to maintain the original proportions, preventing any stretching or squishing.

Can I make an image larger?

Yes, you can input dimensions larger than the original image (upscaling). However, because standard formats like JPG and PNG are raster-based, upscaling beyond 150-200% may result in blurriness or pixelation.

Are my files saved on your servers?

No. This tool operates entirely within your browser. We use local Canvas APIs to read and resize the image, meaning the file never leaves your computer or phone.

Does resizing an image reduce its file size (MB)?

Usually, yes. If you reduce the pixel dimensions (downscaling), the resulting image will have fewer pixels, drastically dropping the file size in megabytes. You can also adjust the Quality slider to reduce it further.