# \[ANN\] Bison.jl Efficient JSON storage of nested arrays and objects in Julia and Python

**URL:** <https://discourse.julialang.org/t/ann-bison-jl-efficient-json-storage-of-nested-arrays-and-objects-in-julia-and-python/139800>\
**Category:** Package Announcements\
**Created:** [October 2, 2026, 10:21pm UTC](https://discourse.julialang.org/t/ann-bison-jl-efficient-json-storage-of-nested-arrays-and-objects-in-julia-and-python/139800 "2026-10-02T22:21:46Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![pxshen](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/pxshen/32/38776_2.png) [@pxshen](https://discourse.julialang.org/u/pxshen)\
**Post date:** [October 2, 2026, 10:21pm UTC](https://discourse.julialang.org/t/ann-bison-jl-efficient-json-storage-of-nested-arrays-and-objects-in-julia-and-python/139800/1 "2026-10-02T22:21:46Z")

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JSON superset with efficient storage of arrays and objects. Dumps and loads dictionary as \*.json file which stores primitives as is and arrays as references (serialized in \*.json.dat folder optionally bundled as \*.tar). Handles arbitrary array and object nesting in dictionaries, tuples and lists. Cross-language: Python, Julia