Tools to group large list of keywords

Anyone know of such tool? I prefer it to run offline but online will be fine.

Only tool I know of which I'm using is this


Using it only for to group large list of keyword into nice keyword to further understand them to generate content.

Not for any PPC purpose yet

Scrapebox can kinda do this - you have to use the "remove keywords containing" and "remove keywords not containing" features multiple times to narrow down to the list you want (there is probably a better tool out there to do this). If you cannot find anything let me know I may see if a bot can be written up to do this.