Compress images without losing the details that matter

When this is useful

Images often dominate page weight. Reducing bytes can make a product catalog or article faster to load, especially on mobile connections. Compression and resizing are separate decisions: lowering quality changes image fidelity, while resizing removes pixels. A 4000-pixel image shown at 600 pixels wide is usually worth resizing before you tune quality.

A reliable workflow

Use JPEG for photographic material, WebP when the receiving system supports it, and PNG for graphics that need lossless storage or transparency. PNG does not respond to a lossy quality slider in the same way as JPEG. In this tool, JPEG output fills transparent areas with white; choose PNG or WebP when you need to keep an alpha channel.

Upload a JPG, PNG, or WebP image. Choose a quality level (lower = smaller file). Compare original vs compressed size. Download the optimized image.

What to check before you finish

Start near 80% quality, compare text edges and detailed areas at their display size, and check the output byte count. A re-encoded file can be larger than the original, particularly when the original is already optimized. Keep your source file, avoid repeated lossy saves, and test the downloaded file in the system where it will be used.

Keep the next step simple

Open the Image Compressor above to try the workflow. Your input is processed in your browser, without an account or file uploads. The related tools below can help with the next step; check the output before publishing it or adding it to a production system.