Hey, i hope its ok to ask in SEO Tools for this. I need a tool/programm/webapp that can compare 2 .txt files. I hope you get it from the title. Its very hard to google a solution for this. You will find many threads from stackoverflow.com or superuser.com. I tried some wordlist tools but they cant do it like i want it. i also tried notepad++ and excel and failed. Most "Solutions" will only allow you to search for ONE SINGLE WORD/STRING! Thats NOT what i want! I need to check 10.000 lines against maybe 1.000 lines (OK - Maybe not THAT much, but for sure more than 1 check for 1 word in 1 file)! I wont upload a file because i need to learn to do this task many many times, so i need to be able to do it myself at any time. I hope you guys can help me with this.