Free — runs entirely in your browserCompress images
instantly
Reduce file size with adjustable quality. Perfect for web, email, and social media — all processed in your browser.
Drop an image or click to upload
PNG, JPG, WebP — up to 20MB
Instant
Compress images in milliseconds using browser Canvas API.
Private
Images never leave your device. Zero data collection.
Adjustable
Fine-tune quality with a slider. See savings in real time.
Frequently asked questions
How does image compression work?
The tool re-encodes your image at a lower quality setting using your browser's built-in Canvas API. This reduces file size while maintaining visual quality at higher settings.
Will I lose image quality?
At 80% quality (the default), the difference is imperceptible to the human eye while achieving significant size reduction. You can adjust the slider to find your preferred balance.
What output format is used?
JPEG for most images (best compression ratio) and WebP if your original was WebP. PNG images are converted to JPEG for compression.
Are my images uploaded anywhere?
No. All processing happens locally in your browser. Your images never leave your device.