Image Compressor
Reduce image file size while maintaining visual quality. Adjust the compression level and preview the result before downloading.
Drop an image here or click to upload
Supports JPG, PNG, WebP, BMP
📖 How to Use
Upload an image, adjust the quality slider (lower = smaller file size), select the output format, and click Compress. Compare the before and after previews, then download the compressed image.
Why Compress Images?
Large image files slow down websites, eat up storage, and make emails bounce. A single uncompressed photo from a modern smartphone can be 5-10MB — multiply that across a website with dozens of images and page load times skyrocket.
Google uses page speed as a ranking factor, so unoptimized images directly hurt your SEO. Studies show that 53% of visitors abandon a page that takes more than 3 seconds to load. Compressing images is one of the easiest performance wins.
Our compressor lets you visually compare quality before and after, so you can find the sweet spot between file size and visual quality. Most images can be compressed 60-80% with no visible difference.
Compression Explained
Lossy Compression
Removes some image data to achieve smaller files. JPG uses lossy compression. At 70-80% quality, the difference is usually invisible to the human eye.
Lossless Compression
Reduces file size without losing any data. PNG supports lossless compression. The file is smaller but pixel-perfect identical to the original.
WebP Format
Google's modern format offers 25-35% smaller files than JPG at equivalent quality. Supported by all major browsers since 2020.
Quality Slider
Lower values = smaller files but more quality loss. For web use, 70-80% is the sweet spot. For print, keep it at 90%+.
Frequently Asked Questions
What quality level should I use?
For websites and social media, 70-80% quality is ideal — the files are much smaller with minimal visible difference. For professional photography or print, stay at 90-95%. Below 50% you'll start seeing noticeable artifacts.
Does compression change image dimensions?
No. Compression only reduces file size, not pixel dimensions. If you need to change width and height, use our Image Resizer tool instead.
Are my images uploaded anywhere?
No. All compression happens in your browser using the Canvas API. Your images never leave your device — complete privacy guaranteed.