Free Code Browser for C++

[jimmytommy]

Hi,
I have source code C and C++ of more than 800MB size. I am facing lot of problem in browsing the code. Please suggest me any of the good reverser engineering tools, preferably free ones, I have used the "Understand C++" but its licensed. Please let me know if any of the tools available similar to Understand C++ for free.

Thanks in Advance,