Image Compressor
Reduce image file sizes instantly — free, private, and right in your browser.
Drop your image here
Supports JPEG, PNG, WebP, AVIF, GIF, HEIC, and more
How to Compress an Image in 3 Steps
Upload your image by dragging and dropping it onto the tool, or click to select a file from your device.
Adjust the quality slider and choose an output format — JPEG, PNG, WebP, AVIF, GIF, or keep the original.
Download your compressed image with a single click. No account needed, no files stored.
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Frequently Asked Questions
Does compressing images reduce their quality?
It depends on the format and the quality level you choose. JPEG and WebP use lossy compression, which reduces file size by discarding some image data. At quality 75–85, the difference is barely visible. PNG uses lossless compression so quality is always preserved.
Are my images uploaded to a server?
No. All compression happens entirely in your browser using WebAssembly-powered ImageMagick. Your files never leave your device, making this tool completely private and secure.
Which output format gives the smallest file size?
AVIF and WebP typically achieve the best compression for photographs and graphics. For broad compatibility, WebP is a solid choice. JPEG works well for photos when legacy support is needed. For images with transparency or sharp edges (logos, screenshots), PNG is preferred.
Is there a file size limit?
There is no hard limit imposed by the tool. However, very large images (above 20 MB) may take a moment to process depending on your device. Your browser handles everything locally, so performance varies by device.