Subtitles for Youtube is a Chrome extension that provides the ability to add your own subtitles for Youtube videos. This is a free tool that doesn't charge a subscription. You don't have to pay any subscription fees to use it.

All you need is the web browser on your device. You can either download Subtitles for Youtube or use it in the Google Chrome web browser. You can also choose to use it in other web browsers, but the extension might work a little bit differently in them.

This extension works on all devices which use the Chrome web browser, but it might work a little bit differently on older devices, so if you're using an older version of Chrome, the extension might not work properly on that device.