lol,im 15 , just a beginner but started learning about stocks a year ago , well september 08. I could only find demo forex platforms, started trading with a 3k account two days ago,up 90 dollars, but i tried applying the same methods used in stocks , but they weren't as effective,in otherwords im looking for a demo stock trading platform but there aren't any!
Welcome to, hopefully, a long career/life in trading
You could try Amibroker. This has trial version and the trial conditions are:
AmiBroker Trial Download :
You can download latest AmiBroker Version 5.20 trial which will work for 30 days on your PC. During this time, you can test AmiBroker thoroughly for all of its functions, advanced features, etc.. Once you are convinced about AmiBroker’s usefulness for you, you can then proceed ahead to purchase the same. No prior registration or demo license is necessary for the demo. You can download AmiBroker Trial version from this link :
amibroker.com
The only limitation of AmiBroker trial version is, it does not allow you to save database i.e. all changes are lost once AmiBroker is closed, trial version runs in Standard Mode and any Automatic Analysis multiple-symbol operation (scan/exploration/bactest/optimize) is limited to 5 symbols. Apart from this, there is no other restriction and you may check all of its features including advanced ones, without any restrictions.
Their site has lots of downloadable manuals and other material, which you may find interesting. Amibroker is not itself a broker but links to brokers.
Many brokers do have demo or paper versions of their software, but often you will need to open and fund an account in order to use the paper version, which would be an issue given your age.
However for practice purposes you might try using your age to your advantage by contacting some brokers such as Tradestation or Interactive Brokers and telling them that you want a delayed feed paper account for a school project etc.
Charlton