A compiler is a computer program that translates source code language into another computer language they are converted whole code at a time.they translate code from high-level programming languages into low level languages, mostly that language exits in assembly or machine code. 

       An interpreter is a computer program that executes instructions written in a programming language.The source code directly or translates executed in which language as you wants but they converts code into line by line.It's speed is slow but accuracy is better than Compiler that's a big different between them.

Happy Coding :)