Choose the source
The browser decodes one JPG, PNG, or WebP image. No form submission or file upload is used.
Free local image compressor
Compress an image to 100KB, 500KB,
or any target.
Choose one JPG, PNG, or WebP image. Your browser searches for the highest practical quality under the size limit—without uploading the file.
✓ No upload✓ No account✓ Runs on this device
Private by design
Compress one image locally
Choose or drop an imageJPG, PNG, or WebP · up to 40 MB
No image selected.
KB
px
Choose an image to begin.
Ready to download
Your compressed image
Download resultThe temporary result is removed when this tab closes.How it works
One local file. Three deliberate steps.
Set the real limit
Enter the target KB and maximum edge. Choose JPEG for compatibility or WebP for modern delivery.
Keep the best result
A quality search stays below the target when practical. Automatic resizing is used only when quality is not enough.
Know the trade-offs
A byte limit is not the same as a quality guarantee.
Two images with the same dimensions can compress very differently. Faces, foliage, noise, gradients, screenshots, and text each respond differently to lossy encoding. Inspect the preview and keep the original file.
JPEG cannot preserve transparency; this tool composites transparent pixels onto the selected background. Choose WebP when transparency must remain and the destination supports it.
Frequently asked questions
Is my image uploaded?+
No. The file is decoded, compressed, previewed, and downloaded inside this browser. The page does not send the image to UtiliVera.
Can every image reach any target size?+
No. A very small target may require fewer pixels or unacceptable quality. Enable automatic resizing or use a larger limit.
Why is my PNG exported as JPEG or WebP?+
PNG is lossless and cannot reliably meet a strict small target for complex photographs. JPEG and WebP expose quality controls; use WebP when transparency must remain.
How do I compress a whole folder?
Use the free Windows app for folder recursion, mixed formats, exact-size search per file, output planning, recipes, and reports.