WinLep is described as 'software that compresses JPG images to LEP saving 22%. WinLep compresses JPEG and decompresses LEP, moreover it can display JPEG and LEP compressed files' and is a Image Optimizer in the Photos & Graphics category. There are more than 25 alternatives to WinLep for a variety of platforms, including Windows, Mac, Online / Web-based, Wordpress and Linux. The best alternative is Caesium Image Compressor, which is both free and Open Source. Other great apps like WinLep are RIOT - Radical Image Optimization Tool (Free), ImageOptim (Free Personal, Open Source), XnConvert (Free Personal) and TinyPNG (Freemium).
With Image Optimizer you can losslessly optimize your PNG, JPEG and GIF files and thus save your bandwidth and your users' time! Kraken recompresses images with blazing speed and strips metadata with image quality intact.
WP Smush strips hidden, bulky information from your images, reducing the file size without losing quality. The faster your WordPress site loads, the more Google, Bing, Yahoo and other search engines will like it.
AdvanceCOMP is a collection of recompression utilities for your .ZIP archives, .PNG snapshots, .MNG video clips and .GZ files. It's mainly intended for recompressing your rom, snapshot and clip collection of emulated games.