Php-Crawler is a simple script written in php.
The crawler needs a MySQL database and an internet connection, and do the job by itself.
Given a single URL, it navigates through internet and stores every url it can find. Once it has enough urls (just wait 30sec or a little more if you have a slow internet connection) you just have to click the “Email” link on its menu. The crawler will start searching for emails on the url addresses it has stored before.
You don’t have to keep the browser window opened during the crawl, the script runs for 24 hours until you have to click “Emails” another time or feed him with an url.
Php-Crawler is Open-Source. The source code is available as a repository on my Github profile so feel free to contribute.