Proxy Locator has a simple and easy to use interface that locates the country of your proxies. You can import the proxies by proxy list, from a textbox or even scrape them from a website.
Proxy Locator is fast and fully threaded meaning it is very stable and can locate around 4 proxies a second. When you have done locating the proxies you can export them in many methods such as exporting them as a CSV, TXT file or even a HTML table.