| Nrapidjson | Main RapidJSON namespace |
| CASCII | ASCII encoding |
| CAutoUTF | Dynamically select encoding according to stream's runtime-specified UTF encoding type |
| CAutoUTFInputStream | Input stream wrapper with dynamically bound encoding and automatic encoding detection |
| CAutoUTFOutputStream | Output stream wrapper with dynamically bound encoding and automatic encoding detection |
| CBaseReaderHandler | Default implementation of Handler |
| CBasicIStreamWrapper | Wrapper of std::basic_istream into RapidJSON's Stream concept |
| CBasicOStreamWrapper | Wrapper of std::basic_ostream into RapidJSON's Stream concept |
| CCrtAllocator | C-runtime library allocator |
| CEncodedInputStream | Input byte stream wrapper with a statically bound encoding |
| CEncodedInputStream< UTF8<>, MemoryStream > | Specialized for UTF8 MemoryStream |
| CEncodedOutputStream | Output byte stream wrapper with statically bound encoding |
| CFileReadStream | File byte stream for input using fread() |
| CFileWriteStream | Wrapper of C file stream for input using fread() |
| CGenericArray | Helper class for accessing Value of array type |
| CGenericDocument | A document for parsing JSON text as DOM |
| CGenericInsituStringStream | A read-write string stream |
| CGenericMember | Name-value pair in a JSON object value |
| CGenericMemberIterator | (Constant) member iterator for a JSON object value |
| CGenericMemoryBuffer | Represents an in-memory output byte stream |
| CGenericObject | Helper class for accessing Value of object type |
| CGenericPointer | Represents a JSON Pointer. Use Pointer for UTF8 encoding and default allocator |
| CToken | A token is the basic units of internal representation |
| CGenericReader | SAX-style JSON parser. Use Reader for UTF8 encoding and default allocator |
| CGenericSchemaDocument | JSON schema document |
| CGenericSchemaValidator | JSON Schema Validator |
| CGenericStringBuffer | Represents an in-memory output stream |
| CGenericStringRef | Reference to a constant string (not taking a copy) |
| CGenericStringStream | Read-only string stream |
| CGenericValue | Represents a JSON value. Use Value for UTF8 encoding and default allocator |
| CIGenericRemoteSchemaDocumentProvider | |
| CMemoryPoolAllocator | Default memory allocator used by the parser and DOM |
| CMemoryStream | Represents an in-memory input byte stream |
| CParseResult | Result of parsing (wraps ParseErrorCode) |
| CPrettyWriter | Writer with indentation and spacing |
| CSchemaValidatingReader | A helper class for parsing with validation |
| CStreamTraits | Provides additional information for stream |
| CStreamTraits< GenericInsituStringStream< Encoding > > | |
| CStreamTraits< GenericStringStream< Encoding > > | |
| CTranscoder | Encoding conversion |
| CTranscoder< Encoding, Encoding > | Specialization of Transcoder with same source and target encoding |
| CUTF16 | UTF-16 encoding |
| CUTF16BE | UTF-16 big endian encoding |
| CUTF16LE | UTF-16 little endian encoding |
| CUTF32 | UTF-32 encoding |
| CUTF32BE | UTF-32 big endian encoding |
| CUTF32LE | UTF-32 little endian enocoding |
| CUTF8 | UTF-8 encoding |
| CWriter | JSON writer |
| CLevel | Information for each nested level |
| CAllocator | Concept for allocating, resizing and freeing memory block |
| CEncoding | Concept for encoding of Unicode characters |
| CHandler | Concept for receiving events from GenericReader upon parsing. The functions return true if no error occurs. If they return false, the event publisher should terminate the process |
| CStream | Concept for reading and writing characters |