What is an Image Resizer?
An image resizer changes the width and height of a photo while preserving the proportions when aspect ratio is locked. Image Resizer CTL lets you resize JPG, PNG and WebP images online without registration.
FREE • PRIVATE • BROWSER PROCESSINGResize Images.
Resize Images.
Keep Quality.
Stay Private.
Resize, compress, crop and convert JPG, PNG and WebP images directly in your browser. Built as a fast, lightweight alternative to desktop image utility software.
🔒 Your images are processed directly in your browser. No upload server is required.
Image Resizer CTL
IMAGE WORKSPACE
Professional image tools in your browser
🔒 Browser Processing
Drop images here
or click to choose files from your device
JPG • JPEG • PNG • WebP • GIF • BMP • multiple selection supportedFREE ONLINE IMAGE TOOLS
Everything you need to resize and optimize images
How to Resize an Image Online
Choose an image, set a target width or height, lock the aspect ratio, then select Resize. The browser creates the new image locally and shows its dimensions, file size and download button.
How to Resize Multiple Images
Upload multiple photos together, choose your resize settings and use Resize All Images. Each image is processed separately in the browser while retaining its own aspect ratio.
How to Compress Images
Open Compress, choose a quality level and process the selected image. The result shows original and compressed sizes so you can reduce photo file size before uploading to websites or social media.
JPG vs PNG vs WebP
JPG is useful for photographs, PNG supports lossless images and transparency, while WebP can provide efficient modern web images. Use the converter to create the format that fits your workflow.
Why Resize Images Before Uploading?
Reducing oversized images can improve page performance, storage efficiency and upload speed. Resize images for websites, Facebook, Instagram, YouTube, WhatsApp and other platforms before publishing.
FAQ
Frequently asked questions
Is Image Resizer CTL free?
Yes. The core image tools are designed to run directly in the browser with no account required.
Can I resize multiple images?
Yes. Multiple image selection and batch resizing are supported.
Can I resize JPG, PNG and WebP images?
Yes. Common JPG, PNG and WebP workflows are supported, subject to browser decoding support.
Are my images uploaded to a server?
The image processing in this application is performed locally in your browser. Your image data does not need to be sent to an image-processing server.
Can I compress images and convert formats?
Yes. Use Compress for quality-based output and Convert for JPG, PNG, WebP and browser-supported AVIF output.
Can I use Image Resizer CTL on mobile?
Yes. The interface is responsive, touch-friendly and uses the device file picker for uploads.
How do I download resized images?
Each processed result has its own Download button. For a batch, Download All creates a ZIP in the browser when the ZIP library is available.
🔒
Private browser processing
Your images are processed directly in your browser whenever supported. Image Resizer CTL does not require an image upload server, login or paid image API for its core functions.