Image Tools Online

Image Converter and Compressor Tools

Images are the heaviest files on most web pages. A single uncompressed photo from a modern smartphone can be 5 to 8 megabytes. According to research published by Google on web.dev, most visitors leave a page that takes longer than three seconds to load. Uncompressed images are the most common cause of that delay.

The Image Compressor reduces file size by 50 to 75 percent at a quality setting that looks identical to the original on any screen. The Image Resizer handles cases where the problem is dimensions — a 4000-pixel-wide image displayed at 800 pixels wastes enormous file size no one can see. Resize first, compress second, and you often reduce file size by over 90 percent compared to the original.

WebP is currently the most efficient format for web images — roughly 25 to 35 percent smaller than JPG at the same visual quality, with transparent background support. The PNG to WebP converter and the WebP to PNG converter handle both directions. Standard conversions are also available: JPG to PNG, PNG to JPG. For iPhone users whose HEIC photos do not open on other devices, the HEIC to JPG converter solves that immediately.

What is the best image format for a website in 2025?

WebP gives you the best combination of small file size and visual quality for web use today. It handles photographs, graphics, and transparent backgrounds. If your website or CMS supports it, converting images to WebP before uploading is one of the most effective performance improvements available without changing anything else about your site.

How much can I compress an image without it looking bad?

At 70 to 80 percent quality using the Image Compressor, the difference between compressed and original is invisible on any normal screen. File size typically drops by 55 to 75 percent. Problems begin appearing below 50 percent, where blocky artifacts become visible around edges in photographs.

Why do HEIC files not open on Windows or Android?

HEIC is Apple's proprietary image format introduced with iOS 11. Windows and Android do not natively support it. The HEIC to JPG converter turns the file into a universally supported format that opens on any device without any app.