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httpformspostlimit

Can HTTP POST be limitless?

What is the specification for maximum data size one can send with HTTP POST method?

Solution

  • EDIT (2019) This answer is now pretty redundant but there is another answer with more relevant information.

    It rather depends on the web server and web browser:

    Internet explorer All versions 2GB-1
    Mozilla Firefox All versions 2GB-1
    IIS 1-5 2GB-1
    IIS 6 4GB-1

    Although IIS only support 200KB by default, the metabase needs amending to increase this.

    http://www.motobit.com/help/scptutl/pa98.htm

    The POST method itself does not have any limit on the size of data.