Free Image Compressor
Drop an image, adjust quality, see before/after size. All in your browser — zero upload.
Drop an image here or click to select (JPEG, PNG, WebP)
How It Works
Upload an image and adjust the quality slider to compress it. The tool shows side-by-side comparison of original and compressed versions with file sizes. Download the compressed image when satisfied with the quality-to-size ratio.
When to Use It
- Website optimization — reduce image file sizes to improve page load speed and Core Web Vitals scores.
- Email attachments — compress images to stay within email attachment size limits.
- Social media — optimize images for faster uploads without visible quality loss.
Frequently Asked Questions
How much compression is too much?
For web use, 70-80% quality retains visual fidelity while significantly reducing file size. Below 50% quality, artifacts become noticeable.
Which formats are supported?
JPEG and PNG images can be compressed. The tool processes everything in your browser using the Canvas API.
Is there a file size limit?
Since processing happens in your browser, it depends on available memory. Images up to 10MB process smoothly on most devices.
Your images never leave your device. All compression is done locally using the Canvas API.
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