The high technological era has leaded the common man to interchange the data in an easy way. This has led to the increase in the misuse of the transferred information via internet like duplicating the data and distributing the data by hackers. In today's era, secure transmission of confidential data is of biggest concern. The encryption plays an important role in transmission of secure data. The encryption means converting the original data to cipher text. The main issue is which technique should be used to provide secure transmission. This paper provides an analysis of various encryption algorithms i.e. AES, DES, 3DES, Blowfish, RC4, RC6. The Comparison is also provided.