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Resize Image Size in KB

Compress your images by reducing file size in KB or MB while maintaining quality. Free, secure, and works on any device.

Please upload a image to get started (0/5)

Drag & drop files here to upload images

JPGJPEGPNGWEBP

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100% Free & no login required. Your images never leave your device.

Output image requirements

KB

How It Works

Resize your images in three simple steps

Upload Your Image

Upload your image in supported formats: JPG, JPEG, PNG, WEBP, GIF, or PDF.

Preview & Adjust Settings

Preview the uploaded image and adjust settings. Use crop, rotate, or flip options as needed.

Download Compressed Image

Download your compressed image with reduced file size while maintaining quality.

Why Choose Our Image Resizer?

Fast, secure, and completely free image resizing

Privacy guaranteed

Your images never leave your device, ensuring complete security. Additionally, you have the option to delete images from the download page.

100% Free & no login required

This tool is completely free to use & no login required. No hidden fees, no premium features locked behind paywalls.

Quality preservation

Uses lossless compression by default to maintain image integrity while reducing file size.

Lightning Fast

Processes images in seconds with support for multiple file size units (KB, MB).

Multiple image formats supported

JPG, JPEG, PNG, WEBP, GIF, and PDF

Works on any device

Easily accessed from any device with a web browser

Testimonials

What Our Users Say

Trusted by thousands of users worldwide

"I am so impressed with imresizer.com, it truly is the best thing ever! I no longer have to worry about signing up and paying for image editing software."
Sarah M.
Content Creator
"I am so impressed with imresizer.com, it truly is the best thing ever! I no longer have to worry about signing up and paying for image editing software."
Sarah M.
Content Creator

Frequently Asked Questions

Everything you need to know about image resizing

What is image size reduction in KB?
Image size reduction in KB is the process of compressing image file size to a specific kilobyte or megabyte target while maintaining visual quality.
Why is reducing image file size important?
Reducing file size helps optimize images for web and mobile apps, improves page load times, meets email attachment size limits, and ensures compliance with online application requirements.
How does image compression work?
Our tool uses lossless compression by default to reduce file size while maintaining image integrity. You can adjust dimensions, format, and quality settings to achieve your desired file size.
Will compressing my image reduce quality?
Using lossless compression maintains the original quality. However, you can choose to reduce quality for smaller file sizes if needed. The preview shows you the result before downloading.
What are common use cases for reducing image size in KB?
Website and mobile app optimization, email attachment compliance, social media preparation, online application requirements, and document photo standards.
Is my image secure with imresizer.com?
Yes. All image transfers are SSL/TLS encrypted. Images are used only for processing, not shared with third parties, and are automatically deleted within 30 minutes after upload.
Can I increase or decrease file size as needed?
Yes, you can both increase or decrease image file size by adjusting dimensions, quality, and format settings to meet your specific requirements.
What file size units are supported?
The tool supports multiple file size units including KB (kilobytes) and MB (megabytes) for precise file size control.
Is this image compression tool free?
Yes, this tool is completely free to use with no login required. No hidden fees or premium features locked behind paywalls.
What image formats are supported?
JPG, JPEG, PNG, WEBP, GIF, and PDF formats are supported for compression.
Can I convert between image formats?
Yes, you can convert between supported image formats while compressing. The tool supports format conversion along with file size reduction.
What additional features are available?
Along with file size reduction, you can crop, rotate, flip, and adjust image dimensions to prepare your images perfectly for any use case.