If you mean to build backlinks tool on the Internet there are many, but in this case I'd recommend that you generate little by little, with constant daily work, because Google penalizes sites that generate many backlinks overnight and do not want that right?
by Ezzaral: Removed self-promotional title.
Ye I think webmaster tools is the best for checking backlinks. Other tools I have seen/used are much slower to recognise backlinks and if you are looking at backlinks to boost search engine positions then surely the best one to use is the one run by the biggest search engine?
If you want tool for make backlink for your website then please take a break. Google is not allow these way of backlink building. Make manually backlinks for your website, always give preference to high PR website.