Hi,
I want to install a free client web filter for my computer at work, but I don't find.
K9 seems no more be installed.
Yishmoreini seems now to be payable.

I can't spend money on this, because it leaves traces.

Thank for your help

What do you mean by traces ? that your wife will be suspicious ? in that case you could simply say you are following what your Rav/Rabbi says needs to be done for everyone(They all say that)

Yes, my wife will be suspicious (why now ?)
and it is not my own computer so I'm not sure the software will really work.

Why would your wife be upset at you for taking steps to stay away from watching schmutz?
Regardless, why don't you go to the gas station and buy a prepaid card there with cash? You can get like an $100 card for about $2.
Also, it's going to be difficult installing some software if you are not an admin. You might be limited to browser based stuff.

Thank, but there is no free software ?
(your propositions are too complicated...)

I can propose a free option, however it is easy to bypass if you know how. If you have someone available to set it up for you, have them email me for details.
Please note, you get what you pay for. There is a reason others are charging money for their filters.
Hatzlocha