Compress Images

Online Image Compressor for Web and SEO

ImageLab is a fast, free image compressor that helps you reduce JPEG, PNG, and WebP file size for websites, blogs, and online stores. Smaller images mean faster page loads, better Core Web Vitals scores, and higher rankings in Google image search.

Use this tool to optimize hero banners, product photos, blog graphics, and social media images without installing any software. Just upload your files, preview the savings, and download optimized assets ready for WordPress, Shopify, Webflow, or any custom site.

Why Compress Images Before Uploading?

Large images are one of the most common reasons websites feel slow. Every uncompressed JPEG or PNG can add hundreds of kilobytes to a page, which hurts mobile users on 3G or 4G connections and increases your bounce rate.

• Improve PageSpeed Insights and Lighthouse scores by reducing image weight.
• Boost Largest Contentful Paint (LCP) and First Contentful Paint (FCP).
• Save bandwidth on your hosting plan or CDN.
• Deliver a smoother experience for visitors on slow or limited networks.

How to Use This Free Image Compressor

Optimizing your images only takes a few seconds:

• Click Choose Files or drag and drop up to 20 images into the box above.
• ImageLab automatically compresses JPEG, PNG, and WebP files with smart quality settings.
• Review the original size, compressed size, and percentage savings for each image.
• Download files individually or use the Download All button to get a ZIP with every optimized image.

Supported Formats: JPEG, PNG, and WebP

This online image compressor is built for the most common web formats:

• JPEG / JPG — best for photographs, lifestyle images, and product photos.
• PNG — ideal for screenshots, UI elements, logos, and graphics with transparency.
• WebP — modern format that provides smaller file sizes with excellent visual quality.

You can mix these formats in a single upload, and ImageLab will choose format-appropriate compression so your images stay crisp but much lighter.

Best Practices for Image Compression

For most websites, a good rule of thumb is to keep hero images under 300 KB when possible and supporting images under 150 KB. Compressing images before uploading helps you hit those targets consistently.

• Export images at the exact dimensions they will appear on your site.
• Use JPEG for photos and WebP when you want the smallest possible file size.
• Avoid uploading massive 4000 px images when your layout only needs 1200 px.
• Run new assets through this compressor before adding them to your CMS or design system.

Image Compression FAQ

Is this image compressor really free to use?

Yes. ImageLab is a free online image compressor with no account required. You can upload up to 20 images at a time, with a maximum size of 10 MB per file.

Will compression reduce the quality of my images?

ImageLab uses modern compression techniques that target file size while preserving visual quality. In most cases, you will not notice a difference on screen, but your files will be significantly lighter.

Does this tool change my image dimensions?

No. This compressor keeps your original width and height. Only the internal encoding is optimized so you can safely replace existing assets on your website or app.

Can I use the compressed images on WordPress, Shopify, or Webflow?

Absolutely. Downloaded files are standard JPEG, PNG, or WebP images that work with any CMS, e‑commerce platform, or static site generator.

Is this image compressor safe for client projects?

Yes. Uploaded images are processed for compression and made available for download. It is a convenient way to prepare client assets, marketing creatives, and design exports before deployment.