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Asked: 2026-06-02T08:10:54+00:00

I have a File Transfer Application that sends files and folders. (Server – client)

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I have a File Transfer Application that sends files and folders. (Server – client)
I am trying to send data over TCP (sockets), I’ve made some rules for the way of transferring the data, so if it’s sending a large folder that has many files, it should compress them into a single zip file first then when that zip file sent, the receiver has to decompress it.
so I have decided to use SharpZibLib and I have got a question about it.

  • Which type of compressing should i choose for my application?

    I read about the differences between ZIP and GZIP, and found that GZIP has better compression to reduce the size, and as I don’t need to extract a special file from the GZIP file later, there’s no need to use ZIP instead of GZIP!
    but in that library there are many types that I still don’t know, so should I use GZIP or another type would be better for my application?

    enter image description here

    P.S:
    Priority for the time first, the point of using SharpZipLib is to put the (too many files) in a single file so it will be sent much faster than sending the (too many files) one by one.
    more details here.

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    1 Answer

    1. Editorial Team

      For speed, you should use gzip / zip. I presume that the library allows you to select the compression level. You should experiment with low levels, e.g. 1 to 4, to see what speed and degree of compression works best with your application.

      gzip / zip will outperform LZW in speed at the same compression effectiveness. I find that compression level 3 is faster than LZW and compresses much better.

      bzip2 will compress better than gzip / zip, but will take much longer.

      The other choices are not compressors.

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