TinyPNG has become something of a default recommendation for image compression, and it deserves that reputation. The premise is straightforward: drag your images onto the page, and TinyPNG analyses them to find the optimal compression settings that reduce file size while keeping visual quality indistinguishable from the original. The reductions are often impressive. A 1MB PNG regularly comes out at 200-300KB with no perceptible quality loss, which translates directly into faster page loads.
The WordPress plugin is where TinyPNG really earns its place for most people managing websites. Once installed and connected to your API key, it automatically compresses every image you upload to the media library, as well as the various thumbnail sizes WordPress generates. You can also bulk-compress your existing image library. I’ve used this on client sites and consistently seen significant reductions in total image weight across the media library. The Photoshop plugin does the same thing for designers who want to optimise images at the point of export.
The free tier allows you to compress 500 images per month via the website, which is plenty for occasional use. For higher volume or API access, the paid plans start at $25 per month. TinyPNG uses lossy compression for PNGs (it reduces the colour palette intelligently) and lossy compression for JPEGs, which means there is technically some quality reduction, but in practice it’s rarely visible at the settings the tool applies by default. If you’re managing a WordPress site and you’re not already using the TinyPNG plugin, installing it today is one of the quickest wins available to you for page speed.