Resize Images by Dimensions
Set a custom width and height in pixels when you need an image to fit an exact space or upload requirement.
Free image resizing & optimization
Make any image fit.
Resize, compress, convert, and optimize your images to meet any file size, dimension, format, or upload requirement.
No signupBrowser-based processingWorks worldwide
Upload your image
Choose an image and we'll help you make it fit your requirements.
Drop an image here or choose a file
JPG, PNG, or WebP · Maximum 25 MB
Choose an imageYour image stays on your device during processing.
Free Online Image Resizer
Resize images online without complicated software
Let's Resize It is a free online image resizer that helps you change image dimensions, reduce image file size, compress photos and convert images between popular formats.
Whether you need to resize a photo for a website, reduce an image below an upload limit, create a specific pixel size or convert an image to WebP, you can do it directly in your browser.
The tool supports common image formats including JPG, PNG and WebP. You can choose an exact width and height, set a maximum file size such as 50 KB or 100 KB, or select an output format that works for your destination.
What can you resize?
Resize, compress and convert images in one place
Choose the type of image task you need. Let's Resize It is designed for common website, application, social media and document upload requirements.
Reduce Image Size to KB
Need an image below a file-size limit? Set a maximum size such as 50 KB, 100 KB, 200 KB or another custom value.
Compress Images
Reduce the amount of storage an image needs while creating a smaller file that is easier to upload, store and share.
JPG
Resize JPG Images
Resize JPEG and JPG photographs for websites, forms, applications, social media and everyday sharing.
PNG
Resize PNG Images
Resize PNG graphics, screenshots, illustrations and transparent images to the dimensions you need.
WEBP
Convert Images to WebP
Choose WebP as the output format when you want a modern web-friendly image format alongside resizing.
File Size Resizing
Resize an image to a specific KB size
Many websites and online applications place limits on the size of an uploaded image. A form might accept only 50 KB, 100 KB, 200 KB or another maximum file size.
Instead of repeatedly guessing which compression setting will work, use the maximum file size option in Let's Resize It. Enter the limit you need and the browser-based image processor works toward producing an image that fits within that limit.
You can also combine a file-size limit with custom dimensions and an output format. For example, you can resize an image to 200 × 200 pixels and choose WebP while also applying a maximum file size.
Common file-size targets
Select your target size in the image resizer above.
Pixel Dimensions
Resize an image to exact dimensions
Sometimes the problem is not the file size — it is the image dimensions. A website, profile form, document system or social platform may require a particular width and height.
Let's Resize It lets you enter custom dimensions in pixels. When both width and height are supplied, the tool can work within the requested dimensions while producing the output image directly in your browser.
Common requirements include square images, profile photos, thumbnails, website graphics, product images and social media assets.
Image Formats
Resize JPG, PNG and WebP images
Choose the output format that fits your project. Resize your image and change its format in the same workflow.
JPG / JPEG
JPG is widely used for photographs and everyday images. It can provide relatively small files when image compression is appropriate.
PNG
PNG is commonly used for graphics, screenshots and images where transparency or lossless image characteristics are important.
WebP
WebP is a modern image format designed for efficient delivery on the web and is supported by modern browsers.
Built for the Web
A simpler way to resize and optimize images
Image resizing should not require a desktop graphics application or a complicated workflow. Let's Resize It focuses on the tasks people actually need when preparing images for the web and online forms.
Free to use
Resize images without needing a paid image-editing application.
Browser based
The image-processing workflow runs directly in your browser.
Flexible controls
Choose file size, dimensions and output format based on your needs.
No complicated workflow
Upload an image, choose your requirements and download the result.
Image Resizing Guide
What happens when you resize an image?
Image dimensions and file size are different
Image dimensions describe the number of pixels in an image, such as 1920 × 1080. File size describes how much storage the resulting file uses, such as 2 MB or 100 KB. Changing dimensions can affect file size, but the two measurements are not the same.
Why does a smaller image usually have a smaller file size?
A smaller image contains fewer pixels that need to be stored and encoded. Depending on the output format and compression settings, reducing dimensions can therefore significantly reduce the resulting file size.
Should you resize or compress an image?
It depends on the requirement. If a website requires a specific width and height, resize the dimensions. If the dimensions are already appropriate but the file is too large, reducing file size or changing the output format may be more appropriate. In some cases, combining both produces the best result.
When should you use WebP?
WebP can be a useful choice for websites and modern web applications because it is designed for efficient image delivery. However, the best format depends on how and where the image will be used.
Free online image tools
Free Image Resizer Online
Let's Resize It is a free online image resizer that helps you resize, compress, and optimize images without complicated software. Set the dimensions you need, choose a maximum file size, select an output format, and download the result directly from your browser.
Whether you need to resize an image to 100 KB, create an exact 200 × 200 pixel image, reduce a large JPG, optimize a PNG, or convert an image to WebP, the tool is designed around the most common image upload and optimization requirements.
There is no need to install desktop software or create an account. Image processing happens locally in your browser, so your images don't need to be sent to a remote server for the resizing process.
Popular Image Resizing Tasks
Different websites, applications, and platforms have different image requirements. These tools are designed around common resizing and compression tasks.
Resize Image Online
Change the width and height of JPG, PNG, or WebP images to the exact dimensions you need.
Compress Image
Reduce image file size while keeping the dimensions you need for websites, email, forms, and sharing.
Resize Image to 100 KB
Reduce an image to a maximum 100 KB file size for websites, applications, forms, and uploads.
Resize Image to 50 KB
Create a smaller image that fits a 50 KB upload requirement while preserving as much quality as possible.
Resize JPG
Resize JPG and JPEG images by pixels, file size, or output format directly in your browser.
Resize PNG
Resize PNG images to exact dimensions or optimize their file size without uploading them to a server.
Resize WebP
Resize WebP images for websites, thumbnails, social media, and other digital uses.
Convert Image to WebP
Convert compatible images to WebP while resizing and optimizing them for modern websites.
Understand the settings
Resize by pixels, file size, or format
The right image setting depends on what you are trying to accomplish. Pixel dimensions control the physical size of the image, while file size controls how much storage the resulting file uses.
Resize by dimensions
Use width and height when a website or platform requires an exact pixel size such as 200 × 200, 800 × 600, or another specific dimension.
Resize by file size
Use a KB limit when an upload form says that your image must stay below a maximum size such as 50 KB or 100 KB.
Choose an output format
JPG, PNG, and WebP have different characteristics. Choosing the right format can make it easier to balance image quality, transparency, compatibility, and file size.
Keep the original dimensions
If the dimensions already work, you can focus on reducing the file size or changing the output format instead of resizing the image itself.
Built for real-world uploads
Why people resize images
Image resizing is useful whenever the original file is too large, has the wrong dimensions, or does not match the format required by the destination.
Website images
Resize large photos and graphics before adding them to your website to make them easier to manage and faster to load.
Online forms
Meet upload requirements when a website asks for an image below a specific file-size limit such as 50 KB or 100 KB.
Social media
Create images with dimensions suitable for profiles, posts, thumbnails, banners, and other social platforms.
Email attachments
Reduce large image files before attaching them to emails or sending them through messaging applications.
Job applications
Resize profile photographs and documents when an application portal requires specific dimensions or file sizes.
E-commerce
Prepare product images with consistent dimensions and lighter file sizes for online stores and product listings.
Your images stay in your browser
Let's Resize It is designed around browser-side image processing. Your selected image does not need to be uploaded to a server just to resize or optimize it. That makes the tool convenient for personal photos, documents, screenshots, and other files you may prefer to keep on your device.
Image Resizer FAQ
Frequently asked questions about resizing images
What is an image resizer?
An image resizer is an online tool that changes an image's pixel dimensions or file size. It can be used to make an image smaller, fit a specific width and height, meet an upload limit, or prepare an image for a website or social platform.
Can I resize an image to a specific KB size?
Yes. Let's Resize It can optimize an image toward a maximum file-size requirement such as 50 KB, 100 KB, 200 KB, or a custom target. The final result depends on the image content, dimensions, and selected output format.
Can I resize an image to exact dimensions?
Yes. You can specify a custom width and height in pixels. When both dimensions are provided, the tool can fit the image within those dimensions while preserving the image's aspect ratio.
Can I resize JPG, PNG and WebP images?
Yes. Let's Resize It supports common image formats including JPG, PNG, and WebP, with options to choose an output format when supported by the browser.
Does Let's Resize It upload my images?
No. Image processing is designed to happen directly inside your browser. Your selected image is processed locally instead of being uploaded to a remote image-processing server.
Is the image resizer free?
Yes. The core image resizing and optimization workflow is available without requiring an account or subscription.
Can I reduce image size without changing dimensions?
Yes. You can keep the original dimensions and choose an output format or file-size requirement to reduce the resulting file size.
What image formats can I export?
Depending on browser support and the selected settings, you can export images as JPG, PNG, or WebP.
Need to resize an image right now?
Set your target dimensions, file size, or format and create an optimized image directly in your browser.
Resize an Image