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canonicaljson-spec-compliant JSON parser/generator. Forked from

Key goals:

  • Compliant with JSON spec per
  • Compliant with canonicaljson-spec
    • canonicaljson-spec was selected over the alternatives because it works for all valid JSON data
  • No external dependencies
  • Compatibility with babashka


The API is similar to's, but with less options. See the API Documentation. The :bigdec option has been removed from the read functions. The :escape-js-separators, :escape-slash, and :escape-unicode options have been removed from the write functions.

When reading in JSON data to canonicalize it, it is recommended to use the read functions from canonical-json rather than another JSON library. canonical-json uses BigDecimals to represent JSON numbers, which avoids a lot of subtle inconsistencies when round-tripping data.


Run project tests:

lein test

Test against canonicaljson-spec:

git submodule init
git submodule update

Change Log

  • Release 3.0.0 on 2022-Jun-14

Copyright and License

Copyright (c) Stuart Sierra, Rich Hickey, and contributors 2012-2022. All rights reserved. The use and distribution terms for this software are covered by the Eclipse Public License 1.0 ( which can be found in the file epl-v10.html at the root of this distribution. By using this software in any fashion, you are agreeing to be bound by the terms of this license. You must not remove this notice, or any other, from this software.

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