The Google Keyword Tool allows you to see popularity of keyword searches and will even suggest possible keywords for your own web pages. It’s useful in generating content ideas because you can focus on keyword searches that have decent volume and not too competition. But do note, the competitive analysis this tool offers is for their pay-per-click advertisers, not for organic (free) search rankings.
You can start by going to https://adwords.google.com/select/KeywordToolExternal and entering keyword phrases or your web page in the search boxes:
If you click the “Advanced options” you can get more specific with your search like locations, languages, mobile search and other specifics.
Once you click “search”, you’ll get results that look like this. You can sort any of the columns. And if you click “views” on the far right, you can customize which columns appear.
You can also search by category on the left side. Just choose a category or subcategory and the keywords will appear on the right.