Free image compressor tools for faster pages and lighter uploads.

Large image files are one of the fastest ways to make an otherwise useful page feel slow. A free image compressor helps reduce JPG, PNG, and WebP file size before the image reaches a blog post, landing page, ecommerce listing, social graphic, or help article. Smaller images can improve Core Web Vitals, reduce bandwidth, and make pages feel more responsive on mobile connections.

The best online image compressor keeps the process simple: upload the file, choose the compression level, preview the visual result, and download the optimized version. For SEO work, the target is not the smallest possible file at any cost. The target is the best balance between image quality, file weight, and page experience.

Start by checking format support. A strong compressor should handle JPG for photos, PNG for transparent graphics, and WebP for modern web performance. Batch compression is helpful when you are optimizing a full article or product gallery, while preview controls matter when a brand image, chart, or product photo needs to stay crisp.

Privacy is also important. If the image contains customer data, private product work, or unreleased marketing assets, choose a provider with clear file deletion policies. For everyday blog graphics, screenshots, and thumbnails, a no-signup image compressor is usually the fastest option.