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Image optimization

Online Image Compressor

Simple, fast and private: everything is processed entirely in your browser.

Quick presets

Preset optimization strategies:

Manual configuration

Active strategy: Convert to WebP at medium quality with a maximum width of 1600 px.

Why optimizing and compressing images matters for your website

In modern web design, how fast a page loads is a decisive factor for both user experience (UX) and search engine rankings (SEO). Unoptimized images often account for more than 60% of a web page's total weight, slowing down loading and dragging down Google Core Web Vitals metrics such as Largest Contentful Paint (LCP). An effective online image compressor lets you cut file sizes dramatically with no visible loss of quality.

This tool runs the compression directly inside your browser. That means your personal files are never uploaded to a remote server, which guarantees maximum privacy and instant processing. By optimizing images into next-generation formats such as WebP or AVIF, you can cut weight by up to 80% compared with traditional JPEG or PNG, while preserving the color detail and transparency your design or e-commerce projects need.

For the best balance between weight and quality, combine data compression with resizing the resolution. Cameras and design mockups often produce files over 4000 pixels wide, which is entirely wasted on most monitors and smartphones. Reducing the maximum width to 1600 or 1920 pixels and applying balanced compression (quality around 70–80%) is the best strategy for serving lightning-fast pages that improve conversion rates and user satisfaction.

Quick FAQ about the image compressor

When should you choose WebP or AVIF?

For photos, mockups and general images, WebP and AVIF cut file weight dramatically. WebP is currently the format best supported across all modern browsers; AVIF offers even better compression ratios than WebP, but takes slightly longer to process and is a little less compatible with very old browsers.

Why does the file size sometimes barely drop?

Some PNG files, and images that were already optimized at source, leave very little room for further compression. In those cases, the way to bring the size down is to reduce the maximum width (to 1280px, for instance) or force conversion to WebP as the output format.

Are my files uploaded anywhere?

No, never. The whole image-processing pipeline runs locally, inside your browser's sandboxed memory. No data or sensitive file is transmitted to our servers or to third parties, so your privacy is preserved completely.

Other useful tools

If you want to enrich your brand's design system, try the Color Palette Extractor to pull color codes out of photos, or the Color Palette Generator to build balanced color combinations on the fly.