Compress Image

Why Compress Images?

Large image files slow down your website, hurt SEO rankings, and increase bandwidth costs. Google's Core Web Vitals penalise pages with unoptimised images, making compression essential for any site that wants to rank well. Our free online image compressor reduces file size by up to 80 % while preserving visual quality, powered by the Sharp image processing library on the server for maximum compression efficiency.

Features

• Batch processing — compress multiple JPG, PNG, WebP, and GIF files at once.
• Adjustable quality slider — fine-tune the balance between size and clarity.
• Server-side processing — images are processed using Sharp, a high-performance Node.js image library, for superior compression.
• Instant preview — see original vs compressed size and savings percentage before downloading.
• Drag & drop — drop files straight onto the upload area for a faster workflow.

How It Works

Each image is sent to the server where Sharp re-encodes it as a JPEG at the quality level you choose. Sharp uses optimised native codecs (libjpeg-turbo, libpng, libwebp) for better compression than browser-based methods. Lower quality values produce smaller files with slightly more compression artefacts, while higher values keep more detail.

Supported Formats

JPEG, PNG, WebP, GIF, BMP, TIFF, and SVG inputs are accepted. The compressed output is always JPEG, which offers the best size-to-quality ratio for photographs and complex images.

Common Use Cases

• Optimising product images for e-commerce stores.
• Reducing hero and banner image sizes for faster page loads.
• Preparing images for email newsletters with strict size limits.
• Shrinking screenshots and blog images before publishing.