If you are a webmaster who earning money using your sites or making web sites for clients then you might find some good free tools which will make your life easy.
Webmaster Tools –
Google Webmaster Tools
Bing Webmaster Tools
Free Domain Tools –
whois.icann.org
whois.com/whois/
Expireddomains.net
archive.org/web/ – Way back machine
Free Web Hosting tools –
intodns.com
mxtoolbox.com/blacklists.aspx
Free Keyword Research Tools –
mastersuggest.com/free
google.com/trends/topcharts
keywordrevealer.com
keywordshitter.com
Free Keyword Tracking Tools –
Serplab.co.uk
serptracker.info
proranktracker.com/packages – They have a free package with 50 terms.
Free Backlink Checking Tools –
Google Webmaster Tools
Ahrefs.com
Opensiteexplorer.org – MOZ Open Site Explorer.
Openlinkprofiler.org
Free Link Indexing Tools –
Pingler.com- Free ping tool.
Pingomatic.com – Another free ping tool.
Linklicious.co – 1500 links index daily for free.
Linkcentaur.com – 50 links index daily for free.
Free Image Tools –
Watermark.ws
Jpeg-optimizer.com
Imageoptimizer.net