High-performance JSON codec

This page summarizes the projects mentioned and recommended in the original post on /r/haskell

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  • aeson

    A fast Haskell JSON library

  • I'd be curious to see the benchmarks with the cffi flag enabled. aeson by default uses Haskell instead of C and this results in a pretty massive slowdown - the benchmark in that PR shows FFI being 12x faster.

  • jsonifier

    Fast and simple JSON encoding toolkit

  • Would be interesting to know how it compares to jsonifier. I've achieved 3x improvement over "aeson" with it as well.

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  • scientific

    Arbitrary-precision floating-point numbers represented using scientific notation

  • Also weighing against scientific is a correctness issue. The exponent cannot be larger than the maximum machine word value.

NOTE: The number of mentions on this list indicates mentions on common posts plus user suggested alternatives. Hence, a higher number means a more popular project.

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