Resize Image in KB
Pick your own KB limit without a default target and let automatic compression aim for a file at or below it.
Upload Your Image
Drag & drop or click to select your image (Max 20MB)
Supports JPG, PNG, GIF, WEBP formats
Multiple images? Compress them all at once
To meet the file size limit, pixel dimensions may be reduced proportionally if needed.
Got more images? Try Bulk Compress →
Related Resize Tools
Resize images in different units, formats, or file sizes — all in one place.
Custom width & height in pixels, inches, cm, or mm.
Resize multiple images together and download everything in one ZIP.
Adjust image size in inches with DPI for printing.
Metric sizing for print and international formats.
Precise sizing for ID photos and official documents.
Optimize image size and DPI for high-quality prints.
Resize dimensions and compress file size in one step.
Resize or change image proportions for any layout.
Scale images to 25%, 50%, 75%, 200%, or a custom percentage.
Custom KB Targets for Everyday Image Limits
Choose the KB limit you need for uploads, websites, forms, and faster sharing without guessing.
Fine-Grained File Size Control
Set a very specific KB goal when a website, form, or platform accepts only smaller image uploads. You stay in control instead of relying on a fixed preset.
Useful for Upload Limits
KB targets are practical when you need to fit under portal limits, support document submissions, or prepare lighter images for email and messaging.
Keep Aspect Ratio Intact
You can reduce file size while keeping the image proportions consistent, which helps avoid stretched visuals when preparing banners, screenshots, or profile images.
Fast Format Comparison
Switch between JPG and WebP to see which format reaches your KB goal more cleanly. This makes it easier to balance compatibility, sharpness, and smaller output.
Private Browser Processing
The resize happens locally in your browser, so your image does not need to be uploaded to a remote server just to meet a smaller KB requirement.
Easy Re-Export Workflow
If the first result is still too heavy or softer than you want, adjust the target size, format, or dimensions and export again. Compression quality is selected automatically for your limit.
Reduce Image Size by KB in 3 Steps
Upload your image, enter the KB limit you want, then export a smaller file that fits your requirement.
Upload an Image
Start with a JPG, PNG, or WebP image from your device. The editor opens immediately so you can preview the file before choosing a target.
Enter Your KB Goal
Type your file size limit in KB. The tool selects compression quality automatically; you can adjust the output format or dimensions to help reach the limit.
Export the Result
Download the result after compression completes. The edited output is encoded and checked against your limit even if the original is already smaller; dimensions may be reduced proportionally when needed.
Set a Custom KB Limit
Choose the KB target you need and create a lighter image for upload forms, websites, and faster sharing.
Frequently Asked Questions
Answers to common questions about choosing and exporting custom KB targets.
KB targets are usually better for smaller web images, document uploads, profile pictures, and forms with tight file size limits. They are useful when you need a lighter file rather than a high-detail export.
No. This page is meant for custom targets, so you can enter the exact KB value that matches your own requirement instead of being locked to one preset size.
The edited output is encoded and checked against your chosen KB limit. A small original does not guarantee a small exported file after resizing or format conversion. This page does not download the original file unchanged.
No cropping is required unless you choose to change the framing yourself. You can keep the aspect ratio locked so the image stays proportional while the file size is reduced.
Yes, sometimes. The tool first tries automatic compression at your selected dimensions. If that is not enough, it may reduce dimensions proportionally. Try another format or a larger target if your upload requires an exact resolution.
WebP often creates smaller files at similar visual quality, while JPG remains more widely compatible. The best choice depends on where the image will be used, so it is worth comparing both when size is tight.
Compressed exports often remove some metadata to help reduce file size. That is common in browser-based image tools and can be useful when your goal is a leaner final file.
Yes. The resize runs in your browser, so your image stays on your device during editing and export. That makes it easier to handle private files without uploading them elsewhere.
Yes, our image resizing tool is completely free to use. No registration required, no watermarks, and no hidden fees. Simply upload your image and resize it to your desired dimensions.
Absolutely! All image processing is done locally in your browser. Your images are never uploaded to our servers, ensuring complete privacy and security of your files.
Popular resize presets
Jump to the most commonly used image sizes for your projects