Image Resizer – Resize Images Online Free

Resize images to exact pixel dimensions or scale by percentage. Maintain aspect ratio with one click. Free online image resizer.

Image Resizer

Resize images to exact pixel dimensions or scale by percentage

Upload an Image

Drag & drop or click to browse (JPG, PNG, WebP, BMP, TIFF)

image.jpg

0 KB

Width (px)

Height (px)

Maintain Aspect Ratio

When checked, changing one dimension automatically adjusts the other

Scale by %:

Upload an image to start resizing.

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Original Size

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New Size

Pixel Change

How to Resize an Image

Upload – Click the button or drag & drop your image.
Set dimensions – Enter the desired width and height in pixels.
Lock aspect ratio – Keep proportions locked (recommended) or unlock for custom stretching.
Scale by percentage – Alternatively, enter a percentage to scale the image up or down.
Resize – Click "Resize Image" to process, then download the result.

Pro Tip: Use the percentage scaling to quickly resize images for social media or web use. For example, 50% reduces the image to half its original size while maintaining proportions.

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Fast Processing

Instant results

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About this Tool

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Image Resizer – Resize Your Photos Instantly

Our Image Resizer is a free online tool that lets you resize any image to exact pixel dimensions or scale by percentage. Whether you need to resize photos for social media, websites, email, or printing, our tool makes it quick and easy. With aspect ratio lock, you can maintain proportions automatically – no more stretched or distorted images.

Why resize images? Smaller images load faster, save bandwidth, and improve user experience. Whether you''re a web developer, social media manager, or just sharing photos online, resizing ensures your images look perfect everywhere.

What You Can Do with This Tool

1
Resize to Exact Dimensions
Enter any width and height in pixels – perfect for social media cover photos, profile pictures, and web graphics.
2
Maintain Aspect Ratio
Lock the aspect ratio to automatically adjust the other dimension – no more stretched or squished images.
3
Scale by Percentage
Quickly scale images up or down by a percentage – great for batch processing or consistent resizing.
4
Live Preview & Stats
See your resized image instantly and view original vs new dimensions with pixel change percentage.

Key Features of SmartPDFNow'' Image Resizer

Exact Pixel Control

Set precise width and height in pixels for perfect sizing every time.

Aspect Ratio Lock

Keep your image proportions intact with a single checkbox.

Percentage Scaling

Scale images up or down by a percentage – great for bulk adjustments.

Live Preview

See your resized image before downloading – no surprises.

Frequently Asked Questions

Is SmartPDFNow'' Image Resizer really free?

Yes! Our Image Resizer is completely free to use. There are no hidden fees, no subscriptions, and no limits – resize as many images as you need.

What image formats are supported?

Our tool supports common image formats including JPEG, PNG, WebP, BMP, and TIFF. You can upload any of these formats and download the resized image in the same format (PNG for PNG uploads, JPEG for others).

Will resizing affect image quality?

Resizing to a smaller size may slightly reduce quality, but our tool uses high-quality resampling to maintain the best possible image quality. For the best results, resize down rather than up – enlarging images can cause pixelation.

Is my image secure when using this tool?

Absolutely. All processing happens directly in your browser using HTML5 Canvas. Your image is never uploaded to any server – it remains on your device throughout the entire process.

Can I resize multiple images at once?

Currently, our tool processes one image at a time. For multiple images, you can resize each one individually. We may add batch processing in the future based on user feedback.

Ready to resize your image?

Upload your image above, enter your desired dimensions, and click "Resize Image" to get your perfect-sized image instantly.

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