Which are the free tools available you use for search engine optimization?

[johndisoza]

Which are the free tools available you use for search engine optimization?

[davidweb09]

Google Webmaster & Analytics are the best free SEO tools.

[luffy268]

Here is something you might interested in:
verticalresponse.com/blog/6-free-seo-tools-to-boost-your-search-engine-rankings/

[aceamerican]

Free Tools :

1. Google Analytics
2. Webmaster Tool
3. Keyword Planner

[ajithparma]

1.Google analytics
2.Back link watch

[incomecracker]

1. Wordstream.
2. Keyword Eye Basic.
3. YouTube Keyword Tool.
4. Ubersuggest.
5. Anchor Text Over Optimization Tool.
6. Convert Word Documents to Clean HTML.
7. Copyscape.