Reduce Image Size in KB
Watch kilobytes fall as you lower JPEG or WebP quality. Compare original vs new size, then download. Runs locally.
How to use Reduce Image Size in KB
- Upload one or more photos.
- Move the quality slider. Lower values cut more kilobytes.
- Compress and read the KB saved.
- Download a file or a ZIP.
What this tool accepts
- Kilobyte readout after encode
- Quality slider
- Local
- Batch
Formats: JPG, PNG, WebP, HEIC, GIF
Reduce image size in KB is the search when someone is staring at a properties panel: 2,400 KB, and the form wants something that looks like hundreds, not thousands.
This landing is a quality slider with a kilobyte comparison, not an automatic 20/50/100 KB hunter. You see the trade. Encoding stays in the browser.
IMG4FIX strips a new canvas file, so GPS EXIF does not ride along. Keep the original if you still need location tags.
How kilobytes drop
JPEG quantization throws away detail. WebP does a similar job with a different codec. PNG is not a quality slider in the JPEG sense; it may not shrink much.
If the photo is 6000 px wide, fewer pixels save more KB than a heroic quality of 20. Pair with Resize Image when the display size is small.
How to reduce image size in KB here
Drop files, slide quality, compress, read KB, download. Start near 80. Stop when the preview still looks sharp at the size you will actually show.
When to switch to a cap URL
If the error message names 20, 50, or 100 KB, open that cap page. Guessing a slider until you randomly land under the cap wastes time and extra generations.
Frequently asked questions
Reduce in KB vs resize in pixels?
This page changes encoding (and thus KB) without asking for a width. Resize Image changes width and height. Huge photos should resize first.
Can I pick an exact KB?
The slider is not a ceiling. For “under 50 KB” use Resize Image to 50KB so the encoder hunts the cap.
Does this upload?
No.
Why did KB go up?
Re-encoding a tiny JPEG at high quality can add bytes. Start from the camera original or lower the slider.
PNG transparency?
PNG recompression keeps alpha. JPEG output does not.
Related tools
Reduce Image Size
Make a photo smaller in kilobytes with a quality slider. Resize first if the pixel grid is huge.
Resize Image to 50KB
Keep a photo at or under 50 KB. Local JPEG encode with automatic downscale when quality is not enough.
Compress Image
Drop JPG, PNG, WebP, GIF, or SVG files and shrink them locally. Pick a quality level, preview the savings, then download.
Increase Image Size in KB
Some portals reject files that are “too small.” This page pads a JPEG until it meets a minimum kilobyte count.