How to use this tool
Compresses the selected image toward a 100 KB maximum while keeping its format by default, then shows the result before download.
- 1Choose an image from your device.
- 2Keep the 100 KB target and the original format, or choose JPG, PNG or WebP.
- 3Compress the image, review its achieved size and dimensions, then download it.
Best for
Preparing an image for a form or destination with a small file-size limit when 100 KB or less is suitable.
Privacy
The image is read, compressed, and previewed locally in your browser; it is not uploaded for image processing. Read our privacy policy
Check a 100 KB upload before submitting it
The limit on this page is 100,000 bytes. Check the downloaded file's size and the destination's requirements before submitting it.
A form may also require exact pixel dimensions or JPG output. Resize to those dimensions first, choose an accepted output format, then inspect the compressed download. If compression changed the dimensions, the file may fit the size limit but still fail the form's dimension check.
Resize to the form's required dimensionsResolve dimensions, format, and size requirements together
What the 100 KB target means for your image
A successful compression result is at or below the target. If quality reduction at the original dimensions is not enough, the compressor can reduce pixel dimensions while keeping their proportions. Very small limits can make the image look softer or smaller, and some files may not be able to reach the limit.
If a supported JPEG or WebP file is already under the target and you keep its existing format, it can be returned without recompression. Choosing another output format still requires encoding a new file.
JPEG and WebP output behavior
The compressor keeps the original format by default, or exports JPG, PNG or WebP. PNG may need smaller dimensions to reach 100 KB. JPEG uses lossy compression and fills transparent pixels with white. WebP output depends on the browser's encoder support and may preserve transparency. Open the general compressor if you need a different target size.
Choose another target in the general image compressorUse the fixed 50 KB compression target
Limitations
- Keep the original format, or choose JPG, PNG or WebP. PNG may need smaller dimensions to meet the target.
- A small target can reduce visual quality and, when needed, pixel dimensions. Some images may not fit the limit at the compressor's minimum dimensions.
Questions
Will a successful result be 100 KB or less?
Yes. The compressor only returns a successful result when its output is at or below the 100 KB target. If it cannot reach the limit, it reports that the target could not be met.
Why can a target-size compressor reduce image quality?
JPEG and WebP use lossy compression. When a small file limit is required, visual quality may need to decrease to remove image data.
Can the 100 KB target change image dimensions?
The compressor keeps dimensions when quality reduction is enough. If the encoded file is still too large, it may reduce width and height while preserving their proportions.
Can I create a 100 KB PNG?
Yes. Keep the original PNG format, or select PNG output. To meet 100 KB, the image may need smaller pixel dimensions.
What if my image is already below 100 KB?
If it is a supported JPEG or WebP file and you keep the same output format, the source can be returned without recompression. Selecting the other format still creates a newly encoded image.
Is my image uploaded to compress it to 100 KB?
No. The image is decoded, compressed, and previewed locally in your browser; it is not uploaded for image processing.
Related tools
- Compress Image
Compress PNG, JPG, and WebP images, compare file sizes, or target a smaller file in KB.
- Compress Image to 50KB
Compress an image to 50 KB or less while keeping its original format.
- Resize Image
Resize JPG, PNG, and WebP images to exact dimensions. Choose crop, fit, or stretch.
- Convert Image
Convert JPG, PNG, and WebP images in your browser.
