Tools and Libraries

Several tools and libraries support JSONC, enabling developers to parse and generate JSONC data easily. This is a non-exhaustive list organized by programming language.

Parsers

Language	Tool/Library	Comments	Trailing Commas	Notes
C++	nlohmann/json	🟡 1	🟡 2
C++	RapidJSON	🟡 3	🟡 4
C++	stephenberry/glaze	🟢 5	🔴
Elixir	massivefermion/jsonc	🟢	🟢	Includes additional extensions
Go	HuJSON	🟢	🟢
Go	tidwall/jsonc	🟢	🟢
Java	Jackson	🟡 6	🟡 7
JavaScript	microsoft/node-jsonc-parser	🟢	🟡 8
Kotlin	kotlinx.serialization.json	🟡 9	🟡 10
PHP	otar/jsonc	🟢	🟢
Python	n-takumasa/json-with-comments	🟢	🟢
Rust	dprint/jsonc-parser	🟢	🟢
Swift	steelbrain/JSONCKit	🟢	🟢

Legend:

🟢: Default support
🟡: Optional support
🔴: Unsupported

---

1. Use ignore_comments ↩

2. Use ignore_trailing_commas ↩

3. Use kParseCommentsFlag ↩

4. Use kParseTrailingCommasFlag ↩

5. Use glz::read_jsonc (or using options: glz::opts{.comments = true}). See Documentation. ↩

6. Use JsonFactory.enable(JsonReadFeature.ALLOW_JAVA_COMMENTS) ↩

7. Use JsonFactory.enable(JsonReadFeature.ALLOW_TRAILING_COMMA) ↩

8. Use allowTrailingComma: true ↩

9. Use allowComments. See Documentation. ↩

10. Use allowTrailingComma. See Documentation. ↩