Resize image in KB online for free without losing too much quality. This online image resizer helps you compress or increase image size to a specific target like 20KB, 50KB, 100KB, 200KB, or custom KB and MB sizes.
The tool works directly in your browser and supports JPEG, PNG, and WebP formats.
Image Resizer
Compress images to any target size — free, private, browser-based
Drop image here or
JPEG · PNG · WebP
Output format
Table of Contents
How to Resize JPG in KB
Step 1: Upload Your Image
Drag and drop your image or browse files from your device.
Step 2: Choose Target Size
Select preset sizes like:
- 20 KB
- 50 KB
- 100 KB
- 200 KB
Or enter a custom image size in KB or MB.
Step 3: Select Output Format
Choose between:
- JPEG
- PNG
- WebP
Step 4: Compress and Download
Click the compress button and download your resized image instantly.
Features of Our Online KB Resizer
- Resize image by KB instantly
- Supports JPG, JPEG, PNG, and WebP
- Online resizer in KB without signup
- Resize photo in KB and pixels
- Increase image size in KB
- Mobile-friendly tool
- Fast browser-based compression
- No watermark
- Unlimited usage
Increase Photo Size in KB
Need to increase photo size in KB instead of compressing it?
You can also use this tool to slightly increase image file size by changing image quality and format settings.
This is useful when websites require a minimum image size for uploads.
FAQ
1. How do I resize an image to 50KB?
Upload your image, select the 50 KB preset, choose JPEG as the output format, and click Compress image. The tool automatically adjusts quality and dimensions until the file is at or below 50KB.
2. Is this image resizer free?
Yes, completely free. No account, no watermark, no limits. The tool runs entirely in your browser and requires no installation.
3. Does my image get uploaded to a server?
No. All processing uses the HTML5 Canvas API running locally in your browser. Your image never leaves your device, making this tool 100% private.
4. Why can't PNG be compressed to very small sizes?
PNG uses lossless compression, meaning image quality cannot be sacrificed to reduce file size. For targets under 100KB, switch to JPEG or WebP for much better results.
5. What image formats are supported?
The tool accepts JPEG, PNG, and WebP files as input. The output can be saved as JPEG, WebP, or PNG depending on your selection.
6. What image formats are supported?
The tool accepts JPEG, PNG, and WebP files as input. The output can be saved as JPEG, WebP, or PNG depending on your selection.
