| 1 | http://keywordtool.io/ | 3,564 | Oct-15 |
| 2 | https://ubersuggest.io/ | 21,735 | Oct-15 |
| 3 | http://tools.seobook.com/general/keyword-information/ | 9,166 | Oct-15 |
| 4 | http://www.wordstream.com/keyword-suggestion-tool | 4,627 | Oct-15 |
| 5 | http://tools.seochat.com/tools/related-keywords-tool/ | 13,058 | Oct-15 |
| 6 | http://www.webconfs.com/website-keyword-suggestions.php | 22,682 | Oct-15 |
| 7 | http://smallseotools.com/keywords-suggestions-tool/ | 3,229 | Oct-15 |
| 8 | http://www.seocentro.com/tools/search-engines/keyword-suggestion.html | 14,860 | Oct-15 |
| 9 | http://www.seoreviewtools.com/seo-keyword-suggestion-tool/ | 17,517 | Oct-15 |
| 10 | http://www.keyworddiscovery.com/search.html | 87,227 | Oct-15 |
| 11 | https://serps.com/tools/keyword-research/ | 22,432 | Oct-15 |
| 12 | https://yoast.com/suggest/ | 4,601 | Oct-15 |
| 13 | http://www.infinitesuggest.com/ | 5,72,561 | Oct-15 |
| 14 | https://www.keyword.io/ | 35,519 | Oct-15 |
| 15 | https://moz.com/products/pro/keyword-explorer | 912 | Oct-15 |