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Canonical JSON

Project Description


  • Encodes objects and arrays as RFC 7159 JSON.
  • Sorts object keys so that you get the same result each time.
  • Has no inignificant whitespace to make the output as small as possible.
  • Escapes only the characters that must be escaped, U+0000 to U+0019 / U+0022 / U+0056, to keep the output as small as possible.
  • Uses the shortest escape sequence for each escaped character.
  • Encodes the JSON as UTF-8.
  • Can encode frozendict immutable dictionaries.


pip install canonicaljson


import canonicaljson
assert canonicaljson.encode_canonical_json({}) == b'{}'

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Wheel py2.py3 Aug 21, 2015

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