Image Compressor
Reduce image file size by adjusting quality. JPEG and WebP support quality settings. All in your browser.
Try it with this example
Upload a JPEG or WebP. Slider adjusts quality—watch the file size change. PNG is lossless.
What is this tool?
Large images slow down websites and consume bandwidth. The Image Compress tool reduces file size by adjusting quality. For JPEG and WebP, a quality slider (1–100%) controls the trade-off between size and fidelity. Lower quality means smaller files and more visible artifacts. For PNG, compression is typically lossless—no quality slider, but optimization can still reduce size. Upload an image, adjust settings, and see the before/after file size. All processing runs in your browser—no upload to our server.
JPEG and WebP use lossy compression. At 80–90% quality, most photos look fine and file size drops significantly. At 50% or below, blocking and blur become noticeable. The tool shows a preview so you can judge. PNG is lossless; use it for graphics with sharp edges, text, or transparency. The compress tool may re-encode PNG with better compression (smaller size, same pixels) without losing quality.
Use it before uploading images to a site, when preparing assets for email, or when you need to fit under a size limit. Designers use it for web export; developers use it in build pipelines. For production, consider automated tools (e.g. ImageOptim, Sharp); for one-off compression, this tool is quick. Your images stay on your device—important for privacy.
Supported formats typically include JPEG, PNG, and WebP. Output format may match input or be selectable. Download the compressed image when satisfied. The tool doesn't resize; for dimension changes, use the Image Resize tool. Compress and resize can be combined in sequence if both are needed.
Fast, private, and free. No signup required.