Free Image Optimizer and WebP Converter | Compress Images

Large images are the number one cause of slow-loading websites. Don't let unoptimized photos hurt your user experience and SEO. Our free Image Optimizer & WebP Converter makes it easy to compress your images, resize them, and convert them to the next-gen WebP format for maximum performance.

Image Optimizer and WebP Converter Tool 150 KB 25 KB Image Optimizer

Live Image Optimizer

Click or Drag & Drop a PNG/JPG Image

Privacy Guaranteed: All image processing is done in your browser. No images are uploaded to a server.

How to Use Our Image Optimizer

Optimizing your images for the web takes just a few clicks:

  1. Click or drag & drop your PNG or JPG file into the upload box.
  2. The tool will instantly show you a preview of the original and an optimized version.
  3. Use the **Optimization Settings** to adjust the output:
    • **Output Format:** Choose WebP for the best compression, or stick with JPG/PNG.
    • **Quality:** Lower the quality slider to significantly reduce file size. Find a balance you're happy with.
    • **Resize Width:** Enter a new width to resize your image, which is one of the most effective ways to make files smaller.
  4. Compare the file sizes and click the **"Download Image"** button when you are satisfied with the result.

Why WebP is the Best Choice

WebP is a modern image format developed by Google specifically for the web. It provides superior lossless and lossy compression for images.

  • Lossless WebP images are up to 26% smaller than PNGs.
  • Lossy WebP images are 25-34% smaller than comparable JPEG images at the same quality index.

This means you can have images that look just as good (or better) than a JPG, but at a fraction of the file size. Converting your images to WebP is one of the single best things you can do to improve your website's loading speed.

The Importance of Image Optimization for Web Performance

Images are often the largest files on a webpage. Every kilobyte (KB) counts when it comes to loading speed, and slow-loading pages can lead to a poor user experience, higher bounce rates, and lower search engine rankings. Image optimization is the process of reducing the file size of your images as much as possible without sacrificing acceptable visual quality.

There are three main techniques to optimize images:

  1. Resizing: An image should be no larger than it needs to be displayed. A 4000px wide photo being displayed in a 800px wide article container is a huge waste of bandwidth. Resizing it to the correct dimensions is the first and most effective step.
  2. Compression: This involves using algorithms to reduce the file size.
    • Lossy compression (used for JPG and WebP) intelligently removes some image data. A little compression is usually unnoticeable, but high levels can reduce quality.
    • Lossless compression (used for PNG and WebP) reduces file size without removing any data, so quality is perfectly preserved.
  3. Format Conversion: Choosing the right file format is critical. Converting a large PNG or JPG to the modern WebP format often provides the biggest file size savings with minimal quality loss.

Our tool empowers you to use all three of these techniques, right in your browser.

Frequently Asked Questions (FAQ)

Q1: Is my image upload private and secure?

Yes, 100%. This is a client-side tool, which means all resizing, compression, and conversion happens directly in your web browser using JavaScript. Your images are never uploaded or sent to our servers, ensuring your data remains completely private.

Q2: What is the best quality setting to use?

There is no single "best" setting; it's a trade-off between file size and visual quality. For most web photos, a quality setting between 75 and 85 provides an excellent balance. For images where quality is paramount, you might stay above 90. For background images or less critical visuals, you can often go as low as 60-70.

Q3: Are WebP images supported by all browsers?

As of today, WebP is supported by over 97% of web browsers in use worldwide, including Chrome, Firefox, Safari, and Edge. It is completely safe to use for modern web development. For the small fraction of users on very old browsers, you can implement a fallback to a JPG or PNG using the HTML `` element.