Make your image file larger in KB. Choose a format, adjust quality and download the result.
Your selected image is processed in your browser. This tool does not upload it to a conversion server.
Increase Image Size Online for Free
Sometimes an image file is smaller than the minimum size accepted by a website or application. In that situation, you may need to increase its file size in KB. This free image size increaser lets you change the output format, adjust image quality and optionally increase the image dimensions.
How to Increase Image Size in KB
- Upload your JPG, PNG or WebP image.
- Enter a target file size in KB if you have one.
- Choose the output format that suits your needs.
- Adjust the quality slider or enter a larger image width.
- Click Create Larger Image and check the new file size.
- Download the image if the result meets your requirements.
Increase JPG Image Size to 50KB or 100KB
If your JPG image is smaller than the size you need, try exporting it at a higher quality setting. You can also increase its pixel dimensions when appropriate. The tool attempts to reach your target size, but the result depends on the image itself. Some images cannot reach a particular file size using quality adjustments alone.
Can You Increase Image Size Without Losing Quality?
Changing the file size does not restore details that are missing from the original image. A higher-quality export may preserve more of the available detail, while increasing dimensions enlarges the image but does not create genuine new detail. Always check the final result before using it.
Which Format Should You Choose?
- JPG: Commonly used for photographs. Quality settings affect file size and image detail.
- PNG: Useful for screenshots, graphics and transparency. Its file size may not respond to a quality slider.
- WebP: Can offer efficient compression, but make sure the destination accepts it.
Increase Image Size for Online Forms
Some forms specify a required file type, minimum or maximum file size, and image dimensions. Check all these requirements before uploading your image. A file that meets the KB limit may still be rejected if its dimensions or format are incorrect.
Frequently Asked Questions
Can I increase image size from 20KB to 50KB?
You can try a higher-quality export or larger dimensions. Reaching exactly 50KB is not guaranteed for every image.
Can I increase JPG size to 100KB?
Enter 100 in the target-size field and create the output. If the result is smaller, try increasing the dimensions or using a different output format.
Does increasing file size improve image quality?
Not necessarily. A larger file does not automatically contain more genuine detail. Start with the best available original image.
Does this tool work on mobile phones?
Yes. The tool is designed to adapt to mobile screens. Very large images may take longer to process on some devices.
Is my image uploaded to a server?
The conversion is performed in your browser. The tool does not send your selected image to a conversion server.
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