Image Compressor
Compress images online for free — shrink JPEG, PNG and WebP file sizes with a quality slider. 100% private, runs in your browser.
Compression runs entirely in your browser — nothing is uploaded.
How to use
Drop an image above, move the quality slider (lower = smaller file), pick JPEG or WebP output, then download the compressed result. Original and compressed sizes are shown side by side.
Frequently asked questions
Is this image compressor free?
Yes, completely free with no limits, watermarks or signup.
Are my images uploaded anywhere?
No. Compression happens locally on your device via the browser canvas — your images never leave your computer.
Will compression reduce quality?
Lower quality settings make smaller files. Photos look great at 70–85%; use WebP output for the best size-to-quality ratio.
What about PNG transparency?
Choose WebP output to keep transparency. JPEG does not support transparency and fills it with black.
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