Resize PNG Image Online
Controls
With ratio lock on, each image fits inside the target box without stretching.
Percentage mode scales every uploaded image by the same amount.
Images 0
Upload one or more PNG images, resize by exact width and height or percentage, keep ratio lock enabled to avoid stretching, preview output dimensions, and download selected files or the full batch. No registration is required.
How to Resize an Image
- Upload one or more images from your device.
- Choose Custom Size or Percentage for the full batch.
- Click any image in the list to inspect its resized preview.
- Download the selected image or the full batch when the sizes look right.
Key Features
Batch Resize Controls
Bulk resize multiple images — apply the same target box or percentage scale across all uploaded files in one run.
Clickable Preview Queue
The first image opens automatically, and you can click any image in the list to inspect its preview.
Aspect Ratio Protection
Keep proportions intact when fitting images into a target box, or unlock the ratio for exact dimensions.
Frequently Asked Questions
Resizing an image means changing its pixel dimensions so it becomes smaller or larger than the original. It is commonly used to prepare photos for websites, social media posts, online stores, documents, email attachments, ads, and platform-specific size requirements where the image needs to fit a certain width, height, or proportional scale.
Yes. You can upload multiple images, choose one resize rule for the batch, and apply it across all uploaded files in one run. You can preview any file in the queue, download results one by one, or export the entire resized batch at once.
Reducing an image usually preserves good visual quality while making the file smaller or easier to fit into a layout. Enlarging an image can make softness, blur, or pixelation more noticeable because the tool has to stretch the original pixel data. In general, the farther you scale beyond the original size, the more visible quality loss can become.
Percentage mode scales every uploaded image by the same relative amount, such as 50 percent or 200 percent of its original size. Custom size mode lets you set a target width and height in pixels, which is useful when you need images to fit a specific layout, platform requirement, or design box.
Yes. When Lock Ratio is enabled, the tool keeps the original proportions of each image and resizes it to fit inside the target box without stretching or squashing it. If you turn the lock off, you can set exact width and height values even when that changes the original proportions.
No. All resizing happens locally in your browser, so your images stay on your device while you preview and export them. The tool does not upload your files to a remote server for resizing.