You should take a look at this great free wso that made "wso of the day". It's putty geniusly made. Click here to go to the direct page.

Dude people ask this question every day, look around the other keyword research threads here.

You can use Google AdWords Keyword Planner tool... It is free.

there are many several tools such as wordtracker

You can test the keyword research tool of seochat - it gives you good suggestions when you use the 3 level option. My advice for finding good keywords is not to type a generic keyword and expect that a tool would suggest you the best high demand - low competition keyword, but to identify your target market and think how they would search for your product/service. Then you can use any free tool to find out what are the search terms they are searching for.

Google's keyword planner is the best free keyword tool. Next comes semrush but you'll have limited access as a free user.

Google ad word is the best keyword tool and easy for use .Main thing that it is free tool.

use google keyword planner tool,its free, you can search and also see the traffic on particular keyword.
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You can use free version of market samurai too it provides 14 days free trials.

To finding suitable keyword for your website you should go with "Wordstream". It is a website on which different keyword research tool are available like Keyword Suggestion Tool, Keyword Niche Finder tool, Keyword Grouper tool and Negative Keyword Tool. With these tools you can easily find your keywords and these totally free tools.

there are many free niche keyword at adp niche finder, we always use it for niche research.

First is brain mate
Come up with ideas then do keyword research.

Btw, i'm using a paid tool that can generate me millions of unlimited keyword XD

You can use the free Google Keyword Planner or just use Google.com to find long-tail keywords in the suggestions it gives you.

There is another site I use to find long-tail keywords - ubersuggest.org

These tools are enough for you to find good keywords to use!

I hope this helps!

I wish you the best of the best!

Cheers!

You may use a free keyword tool called SERPs. It provides you with keyword ideas from Google Suggest, Bing Suggest, YouTube and Yahoo.

Google Keyword Planner is great, but don't start there.

Get ideas and niches here first:
Soovle - Let the web help.\
Keyword suggestion tool — Google suggest scraper — Übersuggest

Then mash them together with - Keyword Extend

All free

Try No. 4 and No. 5 from here - | Best IM Toolz

They are free and quite good.

But if you want to spy your competitors, which keyphrases they are targetting for SEMRUSH is the way to go, it`s paid, but it`s quite good, only for this one purpose.

Market Samurai and Jaaxy offers trial periods. Both are great. Jaaxy.com is my favorite.