There are lots of places with Free wifi spots in tel aviv, i have listed some of them :
Here is the list:
Tel Aviv North
Ramat Aviv mall - There are two free wi-fi spots: One is in Aroma Café and the other is in Arcafe.
Milano square - Café Anushaka
Yehuda Maccabi St. - Coffee Bean and Tea Leaf.
Basel Square - Arcafe and a few other coffee shops around.
Tel Aviv Center
Azrieli mall - There is a branch of Aroma as well that offers free wi-fi.
Rabin Square - Near by there is a branch of Coffee Bean and Tea Leaf.
Dizengoff Center – Aroma Café.
Rotschild Street – Arcafe
Sheinkin street – numerous cafés offers wi-fi - just choose your prefferd one.
Masryk square – Café Masrik
Tel Aviv Port
Aroma Café branch offers free wi-fi
Tel Aviv South
Neve Zedek neighbourhood - Café Nina