Which is the best software for improving the internet speed?

You can't increase your speed, because your ISP(internet service provider) only provides you speed of 512 kbps. Download youtube videos rather than playing them in the browser and watch later.

There is NO software which can improve your Internet speed! There are a few 'tweaks' which may very slightly improve the data rate but none of these make any significant difference to the data rate you are getting already. If your ISP says that it is 512kbps, then that is what it is (in fact that figure is the maximum they claim to give you. It is often quite a lot less, depending on the length and quality of the line, how many other subscribers they have on a node and other factors which are completely beyond your control). The only things you can do are to choose another ISP or to buy a plan with a faster nominal speed.

Hello...is it not because of your ISP? I mean, this time of internet age, wherein broadband internet is already invading our lives, it is not already normal to have a speed of 512 kbps because I think we have already evolved to Mbps...I myself is using a usb wireless broadband internet service and I am proud to say that it's speed is above 1 Mbps...

That is my problem at the moment because I am using a plugin device. So I already applied for a permanent connection. I hope having a permanent connection would address my present problem. I think you could apply for a higher internet speed at least 1 to 2 mbps. Have a great day!