Core Tools

Resize image online

Resize images online by exact width and height in pixels, with aspect-ratio locking, preview, and private browser-based processing.

Open image editor Browse guides

Quick answer

Use ResizeWizard to resize an image by width and height in pixels. Keep the aspect ratio locked when proportions matter, preview the result, then download the edited file.

How it works

This hub is the starting point for changing image dimensions. Use it when a website, social platform, form, or design needs a specific pixel size.

Open the editor and upload a JPG, PNG, WebP, GIF, AVIF, or other browser-supported image.
Choose the Resize tool and enter the target width and height in pixels.
Keep aspect ratio locked when you want to avoid stretching.
Preview the result, then continue editing or download the resized image.

Tips for the best result

Use exact pixel pages when a destination gives a required width and height.
Reduce dimensions before compression when the original image is very large.
Do not enlarge a small image and expect new detail to appear.

Why this workflow works

Practical benefits

Resize by exact pixels instead of guessing.

Aspect-ratio locking helps prevent stretched images.

Preview and continue editing before downloading.

Related presets connect to common social, form, and website sizes.

Best for

Exact pixel requirements

Use this workflow when a destination asks for an image such as 512 × 512, 800 × 600, 1080 × 1080, or 1920 × 1080 pixels.

Profile photos
Website images
Product cards
Application uploads
Presentation and thumbnail images

Avoid distortion

Use crop or contain when the shape changes

If the target aspect ratio is different from the original, resizing alone may stretch the image. Crop for an edge-to-edge result or contain the image when the full original must remain visible.

Common mistakes to avoid

Do not edit the only copy of your image. Keep the original before using this page.
Do not judge the result by file size alone. Open the downloaded image and check important details.
Do not resize blindly. Check whether the destination needs exact pixels, a file-size limit, a crop, or a specific format.

Example workflows

Use this page when you need a practical image workflow rather than a generic editor screen.
Follow the visible steps, then use the related tools and guides for the next edit.
Verify dimensions, format, and file size before publishing or submitting the image.

Explore the collection