Compress Image

Large image files slow down websites, fill up storage, and hit attachment limits in email clients. Compressing an image reduces its file size by adjusting compression quality while keeping the image visually similar to the original. Whether you are optimizing a photo for social media, preparing images for a blog post, or sending pictures to a colleague, compression helps you stay within size limits without visibly degrading quality.

This compressor works client-side in your browser. Upload a JPG, PNG, or WebP file and use the quality slider to control how aggressively the image is compressed. Lower quality values produce smaller files; higher values preserve more detail. As you adjust the slider, the tool shows an estimated output size so you can find the right balance before downloading. Your original file is never uploaded to any server.

To get started, drag and drop an image or click to browse your files. Once loaded, move the quality slider to your preferred setting — 80% is a good starting point for photographs. Click Compress Image to generate the optimized file. Review the size reduction percentage, then click Download to save the compressed version. You can try different quality levels on the same image until you are satisfied with the result.

For best results with photographs, JPG compression typically achieves the largest size savings. PNG files with lots of flat color compress well too, though photos stored as PNG are often much larger than necessary — consider converting to JPG first if transparency is not needed. If you need both smaller dimensions and smaller file size, combine this tool with our Resize Image tool for maximum optimization.

Server-based compressors require you to upload your full-resolution images before processing. That creates privacy concerns and adds latency — a 10 MB photo might take ten seconds just to upload before compression even begins. Our browser-based approach eliminates both problems. The file stays on your machine, and compression starts immediately.

The quality slider gives you direct control over the output. Many automatic compressors apply one-size-fits-all settings that either over-compress (visible artifacts) or under-compress (minimal savings). Here you see the estimated output size update in real time, so you can stop at exactly the quality level you need. That transparency helps photographers, marketers, and developers who need predictable results.

Compressed images improve Core Web Vitals on websites, reduce bandwidth costs, and make sharing easier. A product photo that drops from 3 MB to 400 KB loads faster for customers without looking noticeably different. We built this tool to make that optimization accessible to everyone — no Photoshop license, no command-line tools, and no account required.