Image Compressor

What is an Image Compressor?

An image compressor reduces the file size of a photo or graphic while keeping it visually sharp. This free online tool re-encodes your JPG, PNG or WebP image at the exact quality you choose, producing a much lighter file in seconds without any software to install.

When to use it

• Speeding up a slow website, blog or landing page
• Shrinking photos before attaching them to email
• Saving storage space on your phone or laptop
• Meeting strict file size limits on upload forms

FAQ

• Is this image compressor free? Yes — the tool is completely free and unlimited.
• Do my images get uploaded anywhere? No, compression runs entirely in your browser, so files never leave your device.
• Which format compresses best? JPEG and WebP give the smallest photo files, while PNG keeps transparency and sharp edges.

How much should you compress?

There is no single perfect quality setting; the right value depends on the image and its use. Drop the quality slider slowly until the file is small enough but the image still looks clean at the size you display it. Preview the result inside the tool instead of guessing from the number alone.

Best practices for web images

• Resize to the width that will actually be shown — extra pixels only add bytes.
• Use JPEG for photos and WebP for a modern, smaller alternative.
• Keep transparency in PNG only where it is really needed.
• Aim for under 100 KB for content images; hero images can go a bit higher.