I am looking for an intelligent keyword harvester for my own website

Hello all,
Nice to meet the community.

Its my first post so forgive for going directly to the subject.
I’ve been browsing all day the Internet, trying to find an intelligent keyword harvester tool that I would use for harvesting all pages on my own website for keywords and key phrases.
Of course best way is to sit down and spend some hours if not days trying to create best keyword for my website pages.
But I decided to use a simple method of automatic harvesting, and I know there are tools like that. I just wasn’t lucky enough to find one good.
Anyone have any ideas of a really good and smart keyword-harvesting tool?
A tool that would find keywords, sort them, organize well, make them meta tag ready, eliminate single-words duplicates, etc.?
Thank you a lot.

You can try using TheDowser Keyword Harvester.

I also start thinking its best to define your keywords your self.

Find a way to optimize your content via the Latent Semantic Optimization model after you research your keywords and topic you need to work on. You can then determinate what's the perfect content that search engines think you must include, and you can include it to your content before the crawlers reach it. It's called ContentDNA, and should persist in the content arround 20-30%.

I use a program called Keyword Elite. Gathers hundreds of keyword phrases which can be analysed for searches v competing pages - KEI plus load more info.
(Not my software or an agent - just think it's a great tool).

Koolsteve