What does Image Resizer do?
Image Resizer changes image dimensions by pixels, percentage, or maximum size. It is useful when you need a photo or graphic to fit a website, profile, document, or upload requirement.
Free Image Resizer — Processed in Your Browser
Resize images to specific dimensions, a percentage of the original, or a maximum width or height inside your browser. Your image stays on your device throughout.
Your files stay on your device for this tool. We do not intentionally collect or store file contents processed locally here.
Local processing: no file upload
Drop an image here or choose from your device
JPG, PNG, WebP, GIF — single image
How to use Image Resizer
Image Resizer helps you change image dimensions directly in your browser. It is useful when a photo, screenshot, or graphic needs exact pixels, a percentage resize, or a maximum dimension. Use it when you want the image processing to happen inside your browser with clear controls for the resized image.
- 1
Open Image Resizer
Start on the Image Resizer page and keep the browser tab open while you work. The controls above are focused on producing the resized image from your image file.
- 2
Add your image file
Choose the image you want to resize. The browser reads the file locally so the dimension change can happen on your device.
- 3
Choose the right settings
Choose exact pixel dimensions, a percentage, or a maximum dimension depending on the size required by your website, app, or document.
- 4
Review the result
Review the new dimensions before downloading. If the image is too large or too small, adjust the resize settings and try again. The image workflow stays focused on the file you selected.
- 5
Save or use the resized image
Download the resized image and confirm it fits the place where you plan to use it.
- 6
Clear private data when finished
When finished, remove the image from the page or close the tab to clear the local preview.
Why use Image Resizer on The Privacy Tools?
Use Image Resizer on The Privacy Tools when you need a specific image size without installing editing software or sending the image to a server-side processor. It is a good fit for profile images, web graphics, document images, and photos that need predictable dimensions. Your image stays on your device while the browser changes its dimensions. There is no signup flow or account requirement, and no server-side image processing step for your image file.
Frequently Asked Questions
Is my image file sent to a server for processing?
No. Your image is resized in your browser. Your file stays on your device while you adjust dimensions.
Is Image Resizer free to use?
Yes. Image Resizer is free and does not require signup. You can resize images whenever you need a quick format or dimension adjustment.
Do I need to install anything to use Image Resizer?
No. It runs directly from the web page. Add your image, choose the size options, and download the resized file.
Can I use Image Resizer on mobile?
Yes. Image Resizer works in modern mobile browsers. It is especially useful for quick photo adjustments before sharing or uploading from your phone.
Why use Image Resizer on The Privacy Tools?
The Privacy Tools keeps common image edits browser-based and simple. Image Resizer helps you change dimensions without installing software, creating an account, or sending your image to a server-side processor.
Features
Three Resize Modes
Resize to exact pixel dimensions, scale by percentage (e.g. 50% of original), or constrain to a maximum dimension while keeping aspect ratio.
Browser-Based
Resizing uses the Canvas API in your browser for this workflow. For this tool, your image contents stay on your device.
Aspect Ratio Lock
Lock aspect ratio to keep proportions when entering exact pixel dimensions. Disable it to stretch freely.
Quality Control
For JPG and WebP output, adjust the quality slider to balance file size against visual fidelity. PNG output is always lossless.
Instant Download
Download the resized image directly to your device with the original filename and a '-resized' suffix.
Live Dimension Preview
See the resulting output dimensions before you resize, so you know exactly what you'll get.
How Your Privacy Is Protected
Image Resizeris built with a privacy-first architecture. Here's how file contents are handled by the browser-local workflow for this file tool.
Browser-local file processing
Your files are processed using browser APIs (Web Workers, Canvas, File API). For this tool, file contents stay on your device.
Browser-local workflow
For supported file tools, processing happens in your browser using your device's resources. Our servers do not process your file contents for these workflows.
Modern browser workflow
The tools are designed to run in modern browsers, with local processing where supported after the page code loads.
No server-side file processor
For this file-processing tool, files are read and processed by your browser rather than a server-side file processor.
Use Cases
Resize Photos for Web Upload
Many websites cap image uploads at 1MB or a few megapixels. Resize before uploading to avoid rejection or slow uploads.
Create Thumbnails
Scale images down to thumbnail dimensions for galleries, blog post previews, or product listings.
Fit Form Upload Limits
Applications, portals, and HR systems often restrict image uploads to small dimensions. Resize to meet their requirements without a separate app.
Resize Screenshots for Documentation
High-DPI screenshots from retina displays are often twice as wide as needed. Resize to 50% before embedding in docs or wikis.
Prepare Images for Email
Large images slow down emails and can break inbox size limits. Resize photos before attaching them to messages.
Resize for Social Media
Scale images to fit the expected dimensions for different platforms' posts, headers, or profile pictures.