A real time compression on cloud is an activity where compression takes place at the time of uploading a file on cloud and save it on cloud storage space in compressed form. In this paper, we come up with a same activity where compression and decompression take place on Amazon EC2 over the internet. With increasing need and usage of file sharing between user and servers, the demands for storage have been always kept increased, but the problem of storage space is still there. So to reduce the space for large files, compression is always a good idea. We have used Huffman coding and LZ77 compression technique in it to create lossless compression environment The files get compressed and decompressed at real time on Amazon EC2 where compression of files take place at the time of uploading and decompression is taking place at the time of downloading files to the local machine from Amazon EC2. The user gets the file in original size as well as in same file format as it was before being compressed and uploaded. Multiple users can create accounts and can manage their accounts separately by adding their data of any data format and get it compressed on Amazon EC2 cloud. One major advantage of the proposed system is that it is implemented on Amazon EC2 cloud and is used over the internet; it means that multiple users can access it at a particular instant of time from multiple locations and get their files compressed.

Cloud computing, Amazon EC2, Real Time compression, Amazon web services

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