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Image Resizer

Change image width and height dimensions with aspect ratio lock.

Photo Resizer

Drag & drop an image here

Supports PNG, JPG, JPEG, WebP, GIF

Resize Settings
Canvas Preview

Free Image Resizer Online — RezanToolbox

Looking for a free Image Resizer online? RezanToolbox provides a focused image resizer for photographers, designers, marketers, and anyone who needs to edit images without Photoshop. Change image width and height dimensions with aspect ratio lock. The tool runs in your browser with no registration or software installation required.

Also searched as: Photo Resizer · Picture Resizer · Online Image Resizer

How to Use Image Resizer — Step by Step

  1. Go to RezanToolbox Image Resizer — no account or download needed.
  2. Upload your image by dragging it onto the page or clicking Browse File.
  3. Adjust settings like size, quality, crop area, or output format using the controls.
  4. Preview your result in real time, then click Download to save your processed image.

Image Resizer — Frequently Asked Questions

Yes, Image Resizer is 100% free on RezanToolbox. No hidden fees, no premium tiers, no credit card, and no registration required. Use it as many times as you want.

Tool inputs are processed in your browser and are not submitted to a RezanToolbox account or file-processing server. Optional analytics, when accepted, measures site usage rather than the text, files, code, or numbers entered into a tool.

No download required. Image Resizer works directly in your web browser on Chrome, Firefox, Safari, and Edge. Just open the page and start using it instantly.

Yes. RezanToolbox is fully responsive and works on iPhone, Android, iPad, and all mobile devices with a modern browser.

Most RezanToolbox image tools support PNG, JPG, JPEG, and WebP formats. Supported formats are shown on the upload area of each tool page.

Review the result for your specific use case. Calculations can depend on assumptions, file conversions can change formatting, and generated code or text should be tested before it is used in an important workflow.