Is there any plugin to save the links I’ve built for a html site?

Hello and thanks in advance,

I’m trying to figure out and find a plugin that will save the links that I’ve built to my static html site. I would like to covert my static html site over to the wordpress platform, but I’m worried I’ll loose all the back-links that I’ve built.

Is there any plugin that will redirect or convert somehow? I don’t want my efforts to be lost.

For example, a lot of my links were built like so: www. blahblah. com/blahb_hlaah. html