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	jmtilli/caj	🟡 1	🟡 2
C++	nlohmann/json	🟡 3	🟡 4
C++	RapidJSON	🟡 5	🟡 6
C++	stephenberry/glaze	🟢 7	🔴
Elixir	massivefermion/jsonc	🟢	🟢	Includes additional extensions
Go	HuJSON	🟢	🟢
Go	tidwall/jsonc	🟢	🟢
Java	Jackson	🟡 8	🟡 9
JavaScript	microsoft/node-jsonc-parser	🟢	🟡 10
Kotlin	kotlinx.serialization.json	🟡 11	🟡 12
PHP	otar/jsonc	🟢	🟢
Python	n-takumasa/json-with-comments	🟢	🟢
Rust	dprint/jsonc-parser	🟢	🟢
Swift	steelbrain/JSONCKit	🟢	🟢

Legend:

🟢: Default support
🟡: Optional support
🔴: Unsupported

---

1. Use caj_allow_comments(ctx) ↩

2. Use caj_allow_trailing_comma(ctx) ↩

3. Use ignore_comments ↩

4. Use ignore_trailing_commas ↩

5. Use kParseCommentsFlag ↩

6. Use kParseTrailingCommasFlag ↩

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

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

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

10. Use allowTrailingComma: true ↩

11. Use allowComments. See Documentation. ↩

12. Use allowTrailingComma. See Documentation. ↩