• parse/write JSON content
• parse/write ECMAScript like content
• Unquoted property names
• Single / multi-line comments
• Trailing comma allowed for objects and arrays
• Single quoted strings
• Multi-line strings (by escaping new line characters)
• Unicode CodePoint escape
• Hexadecimal/octal/binary numbers
• Numbers with leading or trailing decimal point
• Positive infinity, negative infinity, NaN
• Explicit plus sign for numbers
• Support for C#/.NET Tuples (using Tuple Element Names)
• async writing/parsing

Usage

• parsing a json string synchronously

using (var reader = new StringReader(json)) {
  var value = JsonParser.ParseSync(new JsonReader(reader));
}

or

var value = JsonUtility.ParseSync(json);

• parsing a json string asynchronously

using (var reader = new StringReader(json)) {
  var value = await JsonParser.Parsec(new JsonReader(reader));
}

or

var value = await JsonUtility.Parse(json);

• parsing a json stream synchronously

using (var reader = new StreamReader(stream)) {
  var value = JsonParser.ParseSync(new JsonReader(reader));
}

or

var value = JsonUtility.ParseSync(stream);

• parsing a json stream asynchronously

using (var reader = new StreamReader(stream)) {
  var value = await JsonParser.Parse(new JsonReader(reader));
}

or

var value = await JsonUtility.Parse(stream);

• serializing a value as json string synchronously

var sb = new StringBuilder();
using (var writer = new StringWriter(sb)) {
  var value = JsonWriter.SerializeSync(writer, value);
}
var json = sb.ToString();

or

var json = JsonUtility.SerializeSync(value);

• serializing a value as json string asynchronously

var sb = new StringBuilder();
using (var writer = new StringWriter(sb)) {
  var value = await JsonWriter.Serialize(writer, value);
}
var json = sb.ToString();

or

var json = await JsonUtility.Serialize(value);

• serializing a value to a stream synchronously

using (var writer = new StreamWriter(stream)) {
  JsonWriter.SerializeSync(writer, value);
}

or

JsonUtility.SerializeSync(stream, value);

• serializing a value to a stream asynchronously

using (var writer = new StreamWriter(stream)) {
  await JsonWriter.Serialize(writer, value);
}

or

await JsonUtility.Serialize(stream, value);

Available on NuGet

Code