PROGRAMS BY Opt-In Software

Free program to download flash (FLV) and HTML5 (h.264) videos from YouTube to hard drive. You can specify single or multiple URLs to YouTube web pages. Just click 'Grab' button and after downloading you can watch your favorit

Email list management utility. Can process files of unlimited size, works fast and easy to use. Has rich set of functions: extracting mails, merging, splitting, filtering, combining and randomizing lists, verifying domains. L

Free and fast proxy checking software. Supports SOCKS4/SOCKS5/HTTP/HTTPS proxies with/without authentication. Check for connect to host or load URL (using HTTP GET or POST requests). Combine proxies. Detect proxy location (co