Image Compressor — Reduce Image Size Online
Free tool to compress and resize images to any target KB size. Supports JPG, PNG, WebP, GIF and 50+ formats. No upload. 100% private.
Drop your image here
or click to browse from your device
Format:
Target size:
Compressing…
Select a Format to Compress
Raster
HDR / High Bit-Depth
RAW Camera
Vector / Document
Layered
Animated
Medical / Scientific
Why Use ImageReduce?
ImageReduce is a free online image compression tool that helps you reduce image file sizes to a specific target in kilobytes — whether you need 50KB for a government form, 200KB for a job portal, or any custom size. Unlike generic compressors, our tool automatically adjusts image quality and dimensions until the output matches your exact size requirement.
All processing happens entirely in your browser. Your images are never uploaded to any server, never stored, and never shared. Fast, private, and completely free.
Exact Size Targeting
Compress to any KB from 1KB to 1024KB with precision.
50+ Formats
JPG, PNG, WebP, GIF, BMP, TIFF, HEIC, RAW and many more.
100% Browser-Based
Images never leave your device. Zero server uploads.
Always Free
No costs, no watermarks, no usage limits.
Frequently Asked Questions
What image formats are supported?
ImageReduce supports 50+ formats including JPG, PNG, WebP, AVIF, HEIC, GIF, BMP, TIFF, RAW formats, PSD, SVG, PDF and many more. Select your format from the grid above.
How does it compress to a specific KB size?
Select your target KB from the dropdown, upload your image, and the tool automatically adjusts quality and scale using the browser Canvas API until the file hits your target size.
Is my image data safe?
Completely safe. All compression runs in your browser. Your images are never uploaded to any server and never stored or shared.
Can I use this on mobile?
Yes — ImageReduce is fully responsive and works on Android and iOS browsers without any app install.