JSON Parsing Tests, Full

Appendix to: seriot.ch Parsing JSON is a Minefield http://www.seriot.ch/parsing_json.php

2020-06-21 13:34:00

Contents

  1. Color Scheme
  2. Full Results
  3. Results by Parser

1. Color scheme:

expected result
parsing should have succeeded but failed
parsing should have failed but succeeded
result undefined, parsing succeeded
result undefined, parsing failed
parser crashed
timeout

2. Full Results

Common Lisp cl-json
Common Lisp jonathan
Common Lisp json-streams
Common Lisp jsown
Common Lisp shasht
Common Lisp st-json
Common Lisp yason
i_string_UTF-16LE_with_BOM.json FFFE[00"00E900"00]00 <=> [""]
i_string_utf16BE_no_BOM.json 00[00"00E900"00] <=> [""]
i_string_utf16LE_no_BOM.json [00"00E900"00]00 <=> [""]
i_number_pos_double_huge_exp.json [1.5e+9999]
i_structure_UTF-8_BOM_empty_object.json EFBBBF{} <=> {}
i_number_neg_int_huge_exp.json [-1e+9999]
i_number_real_neg_overflow.json [-123123e100000]
i_number_real_pos_overflow.json [123123e100000]
i_number_huge_exp.json [0.4e0066999999999999999999999999999(...)
i_string_1st_surrogate_but_2nd_missing.json ["\uDADA"]
i_string_UTF-8_invalid_sequence.json ["E697A5D188FA"] <=> ["日ш"]
i_string_UTF8_surrogate_U+D800.json ["EDA080"] <=> [""]
i_string_incomplete_surrogate_and_escape_valid.json ["\uD800\n"]
i_string_invalid_lonely_surrogate.json ["\ud800"]
i_string_invalid_surrogate.json ["\ud800abc"]
i_string_invalid_utf-8.json ["FF"] <=> [""]
i_string_iso_latin_1.json ["E9"] <=> [""]
i_string_lone_utf8_continuation_byte.json ["81"] <=> [""]
i_string_not_in_unicode_range.json ["F4BFBFBF"] <=> [""]
i_string_overlong_sequence_2_bytes.json ["C0AF"] <=> [""]
i_string_overlong_sequence_6_bytes.json ["FC83BFBFBFBF"] <=> [""]
i_string_overlong_sequence_6_bytes_null.json ["FC8080808080"] <=> [""]
i_string_truncated-utf-8.json ["E0FF"] <=> [""]
i_string_1st_valid_surrogate_2nd_invalid.json ["\uD888\u1234"]
i_string_incomplete_surrogates_escape_valid.json ["\uD800\uD800\n"]
i_string_inverted_surrogates_U+1D11E.json ["\uDd1e\uD834"]
i_object_key_lone_2nd_surrogate.json {"\uDFAA":0}
i_string_incomplete_surrogate_pair.json ["\uDd1ea"]
i_string_lone_second_surrogate.json ["\uDFAA"]
i_number_double_huge_neg_exp.json [123.456e-789]
i_number_too_big_neg_int.json [-123123123123123123123123123123]
i_number_too_big_pos_int.json [100000000000000000000]
i_number_very_big_negative_int.json [-2374623746732768942798327498324234(...)
i_structure_500_nested_arrays.json [[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[(...)
i_number_real_underflow.json [123e-10000000]
n_string_unescaped_crtl_char.json ["a00a"] <=> ["aa"]
n_string_unescaped_newline.json ["new0Aline"] <=> ["new line"]
n_string_unescaped_tab.json ["09"] <=> [" "]
n_array_comma_after_close.json [""],
n_array_extra_close.json ["x"]]
n_object_trailing_comment.json {"a":"b"}/**/
n_object_trailing_comment_open.json {"a":"b"}/**//
n_object_trailing_comment_slash_open.json {"a":"b"}//
n_object_trailing_comment_slash_open_incomplete.json {"a":"b"}/
n_object_with_trailing_garbage.json {"a":"b"}#
n_string_with_trailing_garbage.json ""x
n_structure_array_trailing_garbage.json [1]x
n_structure_array_with_extra_array_close.json [1]]
n_structure_close_unopened_array.json 1]
n_structure_double_array.json [][]
n_structure_object_followed_by_closing_object.json {}}
n_structure_object_with_trailing_garbage.json {"a": true} "x"
n_structure_trailing_#.json {"a":"b"}#{}
n_multidigit_number_then_00.json 12300 <=> 123
n_structure_number_with_trailing_garbage.json 2@
n_structure_whitespace_formfeed.json [0C] <=> [ ]
n_array_inner_array_no_comma.json [3[4]]
n_array_newlines_unclosed.json ["a",0A40A,1, <=> ["a", 4 ,1,
n_array_unclosed_trailing_comma.json [1,
n_object_comma_instead_of_colon.json {"x", null}
n_object_with_single_string.json { "foo" : "bar", "a" }
n_single_space.json
n_string_single_doublequote.json "
n_structure_comma_instead_of_closing_brace.json {"x": true,
n_structure_no_data.json
n_structure_unclosed_array_partial_null.json [ false, nul
n_structure_unclosed_array_unfinished_false.json [ true, fals
n_structure_unclosed_array_unfinished_true.json [ false, tru
n_array_1_true_without_comma.json [1 true]
n_number_1_000.json [1 000.0]
n_object_two_commas_in_a_row.json {"a":"b",,"c":"d"}
n_string_backslash_00.json ["\00"] <=> ["\"]
n_string_escape_x.json ["\x00"]
n_string_escaped_ctrl_char_tab.json ["\09"] <=> ["\ "]
n_string_escaped_emoji.json ["\F09F8C80"] <=> ["\🌀"]
n_string_invalid_backslash_esc.json ["\a"]
n_string_unicode_CapitalU.json "\UA66D"
n_number_-01.json [-01]
n_number_neg_int_starting_with_zero.json [-012]
n_number_with_leading_zero.json [012]
n_array_extra_comma.json ["",]
n_array_number_and_comma.json [1,]
n_array_colon_instead_of_comma.json ["": 1]
n_array_comma_and_number.json [,1]
n_array_double_comma.json [1,,2]
n_array_just_comma.json [,]
n_array_missing_value.json [ , ""]
n_array_spaces_vertical_tab_formfeed.json ["0Ba"\f] <=> [" a"\f]
n_array_star_inside.json [*]
n_number_++.json [++1234]
n_number_.-1.json [.-1]
n_number_NaN.json [NaN]
n_number_infinity.json [Infinity]
n_object_bad_value.json ["x", truth]
n_object_double_colon.json {"x"::"b"}
n_object_emoji.json {F09F87A8F09F87AD} <=> {🇨🇭}
n_object_garbage_at_end.json {"a":"a" 123}
n_object_several_trailing_commas.json {"id":0,,,,,}
n_string_accentuated_char_no_quotes.json [C3A9] <=> [é]
n_string_escaped_backslash_bad.json ["\\\"]
n_string_incomplete_escape.json ["\"]
n_string_incomplete_surrogate_escape_invalid.json ["\uD800\uD800\x"]
n_structure_U+2060_word_joined.json [E281A0] <=> [⁠]
n_structure_angle_bracket_null.json []
n_structure_capitalized_True.json [True]
n_structure_null-byte-outside-string.json [00] <=> []
n_structure_whitespace_U+2060_word_joiner.json [E281A0] <=> [⁠]
n_number_+1.json [+1]
n_number_.2e-3.json [.2e-3]
n_number_U+FF11_fullwidth_digit_one.json [EFBC91] <=> [１]
n_number_starting_with_dot.json [.123]
n_object_key_with_single_quotes.json {key: 'value'}
n_string_single_quote.json ['single quote']
n_object_non_string_key.json {1:1}
n_object_non_string_key_but_huge_number_instead.json {9999E9999:1}
n_object_single_quote.json {'a':0}
n_object_trailing_comma.json {"id":0,}
n_number_invalid+-.json [0e+-1]
n_object_repeated_null_null.json {null:null,null:null}
n_object_missing_key.json {:"b"}
n_number_-2..json [-2.]
n_number_0.e1.json [0.e1]
n_number_2.e+3.json [2.e+3]
n_number_2.e-3.json [2.e-3]
n_number_2.e3.json [2.e3]
n_number_neg_real_without_int_part.json [-.123]
n_number_real_without_fractional_part.json [1.]
n_object_unquoted_key.json {a: "b"}
n_array_just_minus.json [-]
n_number_-1.0..json [-1.0.]
n_number_0.1.2.json [0.1.2]
n_number_0.3e+.json [0.3e+]
n_number_0.3e.json [0.3e]
n_number_0_capital_E+.json [0E+]
n_number_0_capital_E.json [0E]
n_number_0e+.json [0e+]
n_number_0e.json [0e]
n_number_1.0e+.json [1.0e+]
n_number_1.0e-.json [1.0e-]
n_number_1.0e.json [1.0e]
n_number_1eE2.json [1eE2]
n_number_9.e+.json [9.e+]
n_number_expression.json [1+2]
n_object_bracket_key.json {[: "x"}0A <=> {[: "x"}
y_number_real_fraction_exponent.json [123.456e78]
y_object_duplicated_key.json {"a":"b","a":"c"}
y_object_duplicated_key_and_value.json {"a":"b","a":"b"}
y_structure_lonely_int.json 42
y_structure_lonely_negative_real.json -0.1
y_number.json [123e65]
y_number_real_exponent.json [123e45]

3. Results by Parser

.NET System.Text.Json 4.6.0

Bash JSON.sh 2016-08-12

C ConcreteServer

C JSON Checker

C JSON Checker 2

C JSON Checker 20161111

C JSON Parser by udp

C JSON-C

C cJSON 1.7.3

C cJSON 20160806

C ccan

C jansson

C jsmn

C pdjson 20170325

C++ RapidJSON 20170724

C++ nlohmann JSON 20190718

C++ sajson 20170724

Common Lisp cl-json
i_number_double_huge_neg_exp.json [123.456e-789]
i_number_huge_exp.json [0.4e0066999999999999999999999999999(...)
i_number_neg_int_huge_exp.json [-1e+9999]
i_number_pos_double_huge_exp.json [1.5e+9999]
i_number_real_neg_overflow.json [-123123e100000]
i_number_real_pos_overflow.json [123123e100000]
i_number_real_underflow.json [123e-10000000]
i_number_too_big_neg_int.json [-123123123123123123123123123123]
i_number_too_big_pos_int.json [100000000000000000000]
i_number_very_big_negative_int.json [-2374623746732768942798327498324234(...)
i_object_key_lone_2nd_surrogate.json {"\uDFAA":0}
i_string_1st_surrogate_but_2nd_missing.json ["\uDADA"]
i_string_1st_valid_surrogate_2nd_invalid.json ["\uD888\u1234"]
i_string_UTF-16LE_with_BOM.json FFFE[00"00E900"00]00 <=> [""]
i_string_UTF-8_invalid_sequence.json ["E697A5D188FA"] <=> ["日ш"]
i_string_UTF8_surrogate_U+D800.json ["EDA080"] <=> [""]
i_string_incomplete_surrogate_and_escape_valid.json ["\uD800\n"]
i_string_incomplete_surrogate_pair.json ["\uDd1ea"]
i_string_incomplete_surrogates_escape_valid.json ["\uD800\uD800\n"]
i_string_invalid_lonely_surrogate.json ["\ud800"]
i_string_invalid_surrogate.json ["\ud800abc"]
i_string_invalid_utf-8.json ["FF"] <=> [""]
i_string_inverted_surrogates_U+1D11E.json ["\uDd1e\uD834"]
i_string_iso_latin_1.json ["E9"] <=> [""]
i_string_lone_second_surrogate.json ["\uDFAA"]
i_string_lone_utf8_continuation_byte.json ["81"] <=> [""]
i_string_not_in_unicode_range.json ["F4BFBFBF"] <=> [""]
i_string_overlong_sequence_2_bytes.json ["C0AF"] <=> [""]
i_string_overlong_sequence_6_bytes.json ["FC83BFBFBFBF"] <=> [""]
i_string_overlong_sequence_6_bytes_null.json ["FC8080808080"] <=> [""]
i_string_truncated-utf-8.json ["E0FF"] <=> [""]
i_string_utf16BE_no_BOM.json 00[00"00E900"00] <=> [""]
i_string_utf16LE_no_BOM.json [00"00E900"00]00 <=> [""]
i_structure_500_nested_arrays.json [[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[(...)
i_structure_UTF-8_BOM_empty_object.json EFBBBF{} <=> {}
n_array_comma_after_close.json [""],
n_array_extra_close.json ["x"]]
n_multidigit_number_then_00.json 12300 <=> 123
n_object_trailing_comment.json {"a":"b"}/**/
n_object_trailing_comment_open.json {"a":"b"}/**//
n_object_trailing_comment_slash_open.json {"a":"b"}//
n_object_trailing_comment_slash_open_incomplete.json {"a":"b"}/
n_object_with_trailing_garbage.json {"a":"b"}#
n_string_unescaped_crtl_char.json ["a00a"] <=> ["aa"]
n_string_unescaped_newline.json ["new0Aline"] <=> ["new line"]
n_string_unescaped_tab.json ["09"] <=> [" "]
n_string_with_trailing_garbage.json ""x
n_structure_array_trailing_garbage.json [1]x
n_structure_array_with_extra_array_close.json [1]]
n_structure_close_unopened_array.json 1]
n_structure_double_array.json [][]
n_structure_number_with_trailing_garbage.json 2@
n_structure_object_followed_by_closing_object.json {}}
n_structure_object_with_trailing_garbage.json {"a": true} "x"
n_structure_trailing_#.json {"a":"b"}#{}
n_structure_whitespace_formfeed.json [0C] <=> [ ]

Common Lisp jonathan
i_number_double_huge_neg_exp.json [123.456e-789]
i_number_huge_exp.json [0.4e0066999999999999999999999999999(...)
i_number_neg_int_huge_exp.json [-1e+9999]
i_number_pos_double_huge_exp.json [1.5e+9999]
i_number_real_neg_overflow.json [-123123e100000]
i_number_real_pos_overflow.json [123123e100000]
i_number_real_underflow.json [123e-10000000]
i_number_too_big_neg_int.json [-123123123123123123123123123123]
i_number_too_big_pos_int.json [100000000000000000000]
i_number_very_big_negative_int.json [-2374623746732768942798327498324234(...)
i_object_key_lone_2nd_surrogate.json {"\uDFAA":0}
i_string_1st_surrogate_but_2nd_missing.json ["\uDADA"]
i_string_1st_valid_surrogate_2nd_invalid.json ["\uD888\u1234"]
i_string_UTF-16LE_with_BOM.json FFFE[00"00E900"00]00 <=> [""]
i_string_UTF-8_invalid_sequence.json ["E697A5D188FA"] <=> ["日ш"]
i_string_UTF8_surrogate_U+D800.json ["EDA080"] <=> [""]
i_string_incomplete_surrogate_and_escape_valid.json ["\uD800\n"]
i_string_incomplete_surrogate_pair.json ["\uDd1ea"]
i_string_incomplete_surrogates_escape_valid.json ["\uD800\uD800\n"]
i_string_invalid_lonely_surrogate.json ["\ud800"]
i_string_invalid_surrogate.json ["\ud800abc"]
i_string_invalid_utf-8.json ["FF"] <=> [""]
i_string_inverted_surrogates_U+1D11E.json ["\uDd1e\uD834"]
i_string_iso_latin_1.json ["E9"] <=> [""]
i_string_lone_second_surrogate.json ["\uDFAA"]
i_string_lone_utf8_continuation_byte.json ["81"] <=> [""]
i_string_not_in_unicode_range.json ["F4BFBFBF"] <=> [""]
i_string_overlong_sequence_2_bytes.json ["C0AF"] <=> [""]
i_string_overlong_sequence_6_bytes.json ["FC83BFBFBFBF"] <=> [""]
i_string_overlong_sequence_6_bytes_null.json ["FC8080808080"] <=> [""]
i_string_truncated-utf-8.json ["E0FF"] <=> [""]
i_string_utf16BE_no_BOM.json 00[00"00E900"00] <=> [""]
i_string_utf16LE_no_BOM.json [00"00E900"00]00 <=> [""]
i_structure_500_nested_arrays.json [[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[(...)
i_structure_UTF-8_BOM_empty_object.json EFBBBF{} <=> {}
n_array_1_true_without_comma.json [1 true]
n_array_comma_after_close.json [""],
n_array_extra_close.json ["x"]]
n_array_extra_comma.json ["",]
n_array_inner_array_no_comma.json [3[4]]
n_array_newlines_unclosed.json ["a",0A40A,1, <=> ["a", 4 ,1,
n_array_number_and_comma.json [1,]
n_array_unclosed_trailing_comma.json [1,
n_multidigit_number_then_00.json 12300 <=> 123
n_number_-01.json [-01]
n_number_1_000.json [1 000.0]
n_number_neg_int_starting_with_zero.json [-012]
n_number_with_leading_zero.json [012]
n_object_comma_instead_of_colon.json {"x", null}
n_object_trailing_comment.json {"a":"b"}/**/
n_object_trailing_comment_open.json {"a":"b"}/**//
n_object_trailing_comment_slash_open.json {"a":"b"}//
n_object_trailing_comment_slash_open_incomplete.json {"a":"b"}/
n_object_two_commas_in_a_row.json {"a":"b",,"c":"d"}
n_object_with_single_string.json { "foo" : "bar", "a" }
n_object_with_trailing_garbage.json {"a":"b"}#
n_single_space.json
n_string_backslash_00.json ["\00"] <=> ["\"]
n_string_escape_x.json ["\x00"]
n_string_escaped_ctrl_char_tab.json ["\09"] <=> ["\ "]
n_string_escaped_emoji.json ["\F09F8C80"] <=> ["\🌀"]
n_string_invalid_backslash_esc.json ["\a"]
n_string_single_doublequote.json "
n_string_unescaped_crtl_char.json ["a00a"] <=> ["aa"]
n_string_unescaped_newline.json ["new0Aline"] <=> ["new line"]
n_string_unescaped_tab.json ["09"] <=> [" "]
n_string_unicode_CapitalU.json "\UA66D"
n_string_with_trailing_garbage.json ""x
n_structure_array_trailing_garbage.json [1]x
n_structure_array_with_extra_array_close.json [1]]
n_structure_close_unopened_array.json 1]
n_structure_comma_instead_of_closing_brace.json {"x": true,
n_structure_double_array.json [][]
n_structure_no_data.json
n_structure_number_with_trailing_garbage.json 2@
n_structure_object_followed_by_closing_object.json {}}
n_structure_object_with_trailing_garbage.json {"a": true} "x"
n_structure_trailing_#.json {"a":"b"}#{}
n_structure_unclosed_array_partial_null.json [ false, nul
n_structure_unclosed_array_unfinished_false.json [ true, fals
n_structure_unclosed_array_unfinished_true.json [ false, tru
y_number_real_fraction_exponent.json [123.456e78]

Common Lisp json-streams
i_number_double_huge_neg_exp.json [123.456e-789]
i_number_huge_exp.json [0.4e0066999999999999999999999999999(...)
i_number_neg_int_huge_exp.json [-1e+9999]
i_number_pos_double_huge_exp.json [1.5e+9999]
i_number_real_neg_overflow.json [-123123e100000]
i_number_real_pos_overflow.json [123123e100000]
i_number_real_underflow.json [123e-10000000]
i_number_too_big_neg_int.json [-123123123123123123123123123123]
i_number_too_big_pos_int.json [100000000000000000000]
i_number_very_big_negative_int.json [-2374623746732768942798327498324234(...)
i_object_key_lone_2nd_surrogate.json {"\uDFAA":0}
i_string_1st_surrogate_but_2nd_missing.json ["\uDADA"]
i_string_1st_valid_surrogate_2nd_invalid.json ["\uD888\u1234"]
i_string_UTF-16LE_with_BOM.json FFFE[00"00E900"00]00 <=> [""]
i_string_UTF-8_invalid_sequence.json ["E697A5D188FA"] <=> ["日ш"]
i_string_UTF8_surrogate_U+D800.json ["EDA080"] <=> [""]
i_string_incomplete_surrogate_and_escape_valid.json ["\uD800\n"]
i_string_incomplete_surrogate_pair.json ["\uDd1ea"]
i_string_incomplete_surrogates_escape_valid.json ["\uD800\uD800\n"]
i_string_invalid_lonely_surrogate.json ["\ud800"]
i_string_invalid_surrogate.json ["\ud800abc"]
i_string_invalid_utf-8.json ["FF"] <=> [""]
i_string_inverted_surrogates_U+1D11E.json ["\uDd1e\uD834"]
i_string_iso_latin_1.json ["E9"] <=> [""]
i_string_lone_second_surrogate.json ["\uDFAA"]
i_string_lone_utf8_continuation_byte.json ["81"] <=> [""]
i_string_not_in_unicode_range.json ["F4BFBFBF"] <=> [""]
i_string_overlong_sequence_2_bytes.json ["C0AF"] <=> [""]
i_string_overlong_sequence_6_bytes.json ["FC83BFBFBFBF"] <=> [""]
i_string_overlong_sequence_6_bytes_null.json ["FC8080808080"] <=> [""]
i_string_truncated-utf-8.json ["E0FF"] <=> [""]
i_string_utf16BE_no_BOM.json 00[00"00E900"00] <=> [""]
i_string_utf16LE_no_BOM.json [00"00E900"00]00 <=> [""]
i_structure_500_nested_arrays.json [[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[(...)
i_structure_UTF-8_BOM_empty_object.json EFBBBF{} <=> {}
y_object_duplicated_key.json {"a":"b","a":"c"}
y_object_duplicated_key_and_value.json {"a":"b","a":"b"}

Common Lisp jsown
i_number_double_huge_neg_exp.json [123.456e-789]
i_number_huge_exp.json [0.4e0066999999999999999999999999999(...)
i_number_neg_int_huge_exp.json [-1e+9999]
i_number_pos_double_huge_exp.json [1.5e+9999]
i_number_real_neg_overflow.json [-123123e100000]
i_number_real_pos_overflow.json [123123e100000]
i_number_real_underflow.json [123e-10000000]
i_number_too_big_neg_int.json [-123123123123123123123123123123]
i_number_too_big_pos_int.json [100000000000000000000]
i_number_very_big_negative_int.json [-2374623746732768942798327498324234(...)
i_object_key_lone_2nd_surrogate.json {"\uDFAA":0}
i_string_1st_surrogate_but_2nd_missing.json ["\uDADA"]
i_string_1st_valid_surrogate_2nd_invalid.json ["\uD888\u1234"]
i_string_UTF-16LE_with_BOM.json FFFE[00"00E900"00]00 <=> [""]
i_string_UTF-8_invalid_sequence.json ["E697A5D188FA"] <=> ["日ш"]
i_string_UTF8_surrogate_U+D800.json ["EDA080"] <=> [""]
i_string_incomplete_surrogate_and_escape_valid.json ["\uD800\n"]
i_string_incomplete_surrogate_pair.json ["\uDd1ea"]
i_string_incomplete_surrogates_escape_valid.json ["\uD800\uD800\n"]
i_string_invalid_lonely_surrogate.json ["\ud800"]
i_string_invalid_surrogate.json ["\ud800abc"]
i_string_invalid_utf-8.json ["FF"] <=> [""]
i_string_inverted_surrogates_U+1D11E.json ["\uDd1e\uD834"]
i_string_iso_latin_1.json ["E9"] <=> [""]
i_string_lone_second_surrogate.json ["\uDFAA"]
i_string_lone_utf8_continuation_byte.json ["81"] <=> [""]
i_string_not_in_unicode_range.json ["F4BFBFBF"] <=> [""]
i_string_overlong_sequence_2_bytes.json ["C0AF"] <=> [""]
i_string_overlong_sequence_6_bytes.json ["FC83BFBFBFBF"] <=> [""]
i_string_overlong_sequence_6_bytes_null.json ["FC8080808080"] <=> [""]
i_string_truncated-utf-8.json ["E0FF"] <=> [""]
i_string_utf16BE_no_BOM.json 00[00"00E900"00] <=> [""]
i_string_utf16LE_no_BOM.json [00"00E900"00]00 <=> [""]
i_structure_500_nested_arrays.json [[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[(...)
i_structure_UTF-8_BOM_empty_object.json EFBBBF{} <=> {}
n_array_1_true_without_comma.json [1 true]
n_array_colon_instead_of_comma.json ["": 1]
n_array_comma_after_close.json [""],
n_array_comma_and_number.json [,1]
n_array_double_comma.json [1,,2]
n_array_extra_close.json ["x"]]
n_array_just_comma.json [,]
n_array_missing_value.json [ , ""]
n_array_spaces_vertical_tab_formfeed.json ["0Ba"\f] <=> [" a"\f]
n_array_star_inside.json [*]
n_number_++.json [++1234]
n_number_+1.json [+1]
n_number_-01.json [-01]
n_number_.-1.json [.-1]
n_number_.2e-3.json [.2e-3]
n_number_1_000.json [1 000.0]
n_number_NaN.json [NaN]
n_number_U+FF11_fullwidth_digit_one.json [EFBC91] <=> [１]
n_number_infinity.json [Infinity]
n_number_invalid+-.json [0e+-1]
n_number_neg_int_starting_with_zero.json [-012]
n_number_starting_with_dot.json [.123]
n_number_with_leading_zero.json [012]
n_object_bad_value.json ["x", truth]
n_object_double_colon.json {"x"::"b"}
n_object_emoji.json {F09F87A8F09F87AD} <=> {🇨🇭}
n_object_garbage_at_end.json {"a":"a" 123}
n_object_key_with_single_quotes.json {key: 'value'}
n_object_non_string_key.json {1:1}
n_object_non_string_key_but_huge_number_instead.json {9999E9999:1}
n_object_repeated_null_null.json {null:null,null:null}
n_object_several_trailing_commas.json {"id":0,,,,,}
n_object_single_quote.json {'a':0}
n_object_trailing_comma.json {"id":0,}
n_object_trailing_comment.json {"a":"b"}/**/
n_object_trailing_comment_open.json {"a":"b"}/**//
n_object_trailing_comment_slash_open.json {"a":"b"}//
n_object_trailing_comment_slash_open_incomplete.json {"a":"b"}/
n_object_two_commas_in_a_row.json {"a":"b",,"c":"d"}
n_object_with_trailing_garbage.json {"a":"b"}#
n_string_accentuated_char_no_quotes.json [C3A9] <=> [é]
n_string_backslash_00.json ["\00"] <=> ["\"]
n_string_escape_x.json ["\x00"]
n_string_escaped_backslash_bad.json ["\\\"]
n_string_escaped_ctrl_char_tab.json ["\09"] <=> ["\ "]
n_string_escaped_emoji.json ["\F09F8C80"] <=> ["\🌀"]
n_string_incomplete_escape.json ["\"]
n_string_incomplete_surrogate_escape_invalid.json ["\uD800\uD800\x"]
n_string_invalid_backslash_esc.json ["\a"]
n_string_single_quote.json ['single quote']
n_string_unescaped_crtl_char.json ["a00a"] <=> ["aa"]
n_string_unescaped_newline.json ["new0Aline"] <=> ["new line"]
n_string_unescaped_tab.json ["09"] <=> [" "]
n_string_unicode_CapitalU.json "\UA66D"
n_string_with_trailing_garbage.json ""x
n_structure_U+2060_word_joined.json [E281A0] <=> [⁠]
n_structure_angle_bracket_null.json []
n_structure_array_trailing_garbage.json [1]x
n_structure_array_with_extra_array_close.json [1]]
n_structure_capitalized_True.json [True]
n_structure_close_unopened_array.json 1]
n_structure_double_array.json [][]
n_structure_null-byte-outside-string.json [00] <=> []
n_structure_object_followed_by_closing_object.json {}}
n_structure_object_with_trailing_garbage.json {"a": true} "x"
n_structure_trailing_#.json {"a":"b"}#{}
n_structure_whitespace_U+2060_word_joiner.json [E281A0] <=> [⁠]
n_structure_whitespace_formfeed.json [0C] <=> [ ]
y_structure_lonely_int.json 42
y_structure_lonely_negative_real.json -0.1

Common Lisp shasht
i_number_double_huge_neg_exp.json [123.456e-789]
i_number_huge_exp.json [0.4e0066999999999999999999999999999(...)
i_number_neg_int_huge_exp.json [-1e+9999]
i_number_pos_double_huge_exp.json [1.5e+9999]
i_number_real_neg_overflow.json [-123123e100000]
i_number_real_pos_overflow.json [123123e100000]
i_number_real_underflow.json [123e-10000000]
i_number_too_big_neg_int.json [-123123123123123123123123123123]
i_number_too_big_pos_int.json [100000000000000000000]
i_number_very_big_negative_int.json [-2374623746732768942798327498324234(...)
i_object_key_lone_2nd_surrogate.json {"\uDFAA":0}
i_string_1st_surrogate_but_2nd_missing.json ["\uDADA"]
i_string_1st_valid_surrogate_2nd_invalid.json ["\uD888\u1234"]
i_string_UTF-16LE_with_BOM.json FFFE[00"00E900"00]00 <=> [""]
i_string_UTF-8_invalid_sequence.json ["E697A5D188FA"] <=> ["日ш"]
i_string_UTF8_surrogate_U+D800.json ["EDA080"] <=> [""]
i_string_incomplete_surrogate_and_escape_valid.json ["\uD800\n"]
i_string_incomplete_surrogate_pair.json ["\uDd1ea"]
i_string_incomplete_surrogates_escape_valid.json ["\uD800\uD800\n"]
i_string_invalid_lonely_surrogate.json ["\ud800"]
i_string_invalid_surrogate.json ["\ud800abc"]
i_string_invalid_utf-8.json ["FF"] <=> [""]
i_string_inverted_surrogates_U+1D11E.json ["\uDd1e\uD834"]
i_string_iso_latin_1.json ["E9"] <=> [""]
i_string_lone_second_surrogate.json ["\uDFAA"]
i_string_lone_utf8_continuation_byte.json ["81"] <=> [""]
i_string_not_in_unicode_range.json ["F4BFBFBF"] <=> [""]
i_string_overlong_sequence_2_bytes.json ["C0AF"] <=> [""]
i_string_overlong_sequence_6_bytes.json ["FC83BFBFBFBF"] <=> [""]
i_string_overlong_sequence_6_bytes_null.json ["FC8080808080"] <=> [""]
i_string_truncated-utf-8.json ["E0FF"] <=> [""]
i_string_utf16BE_no_BOM.json 00[00"00E900"00] <=> [""]
i_string_utf16LE_no_BOM.json [00"00E900"00]00 <=> [""]
i_structure_500_nested_arrays.json [[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[(...)
i_structure_UTF-8_BOM_empty_object.json EFBBBF{} <=> {}

Common Lisp st-json
i_number_double_huge_neg_exp.json [123.456e-789]
i_number_huge_exp.json [0.4e0066999999999999999999999999999(...)
i_number_neg_int_huge_exp.json [-1e+9999]
i_number_pos_double_huge_exp.json [1.5e+9999]
i_number_real_neg_overflow.json [-123123e100000]
i_number_real_pos_overflow.json [123123e100000]
i_number_real_underflow.json [123e-10000000]
i_number_too_big_neg_int.json [-123123123123123123123123123123]
i_number_too_big_pos_int.json [100000000000000000000]
i_number_very_big_negative_int.json [-2374623746732768942798327498324234(...)
i_object_key_lone_2nd_surrogate.json {"\uDFAA":0}
i_string_1st_surrogate_but_2nd_missing.json ["\uDADA"]
i_string_1st_valid_surrogate_2nd_invalid.json ["\uD888\u1234"]
i_string_UTF-16LE_with_BOM.json FFFE[00"00E900"00]00 <=> [""]
i_string_UTF-8_invalid_sequence.json ["E697A5D188FA"] <=> ["日ш"]
i_string_UTF8_surrogate_U+D800.json ["EDA080"] <=> [""]
i_string_incomplete_surrogate_and_escape_valid.json ["\uD800\n"]
i_string_incomplete_surrogate_pair.json ["\uDd1ea"]
i_string_incomplete_surrogates_escape_valid.json ["\uD800\uD800\n"]
i_string_invalid_lonely_surrogate.json ["\ud800"]
i_string_invalid_surrogate.json ["\ud800abc"]
i_string_invalid_utf-8.json ["FF"] <=> [""]
i_string_inverted_surrogates_U+1D11E.json ["\uDd1e\uD834"]
i_string_iso_latin_1.json ["E9"] <=> [""]
i_string_lone_second_surrogate.json ["\uDFAA"]
i_string_lone_utf8_continuation_byte.json ["81"] <=> [""]
i_string_not_in_unicode_range.json ["F4BFBFBF"] <=> [""]
i_string_overlong_sequence_2_bytes.json ["C0AF"] <=> [""]
i_string_overlong_sequence_6_bytes.json ["FC83BFBFBFBF"] <=> [""]
i_string_overlong_sequence_6_bytes_null.json ["FC8080808080"] <=> [""]
i_string_truncated-utf-8.json ["E0FF"] <=> [""]
i_string_utf16BE_no_BOM.json 00[00"00E900"00] <=> [""]
i_string_utf16LE_no_BOM.json [00"00E900"00]00 <=> [""]
i_structure_500_nested_arrays.json [[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[(...)
i_structure_UTF-8_BOM_empty_object.json EFBBBF{} <=> {}
n_array_extra_comma.json ["",]
n_array_number_and_comma.json [1,]
n_number_+1.json [+1]
n_number_-01.json [-01]
n_number_-2..json [-2.]
n_number_.2e-3.json [.2e-3]
n_number_0.e1.json [0.e1]
n_number_2.e+3.json [2.e+3]
n_number_2.e-3.json [2.e-3]
n_number_2.e3.json [2.e3]
n_number_U+FF11_fullwidth_digit_one.json [EFBC91] <=> [１]
n_number_neg_int_starting_with_zero.json [-012]
n_number_neg_real_without_int_part.json [-.123]
n_number_real_without_fractional_part.json [1.]
n_number_starting_with_dot.json [.123]
n_number_with_leading_zero.json [012]
n_object_key_with_single_quotes.json {key: 'value'}
n_object_missing_key.json {:"b"}
n_object_non_string_key.json {1:1}
n_object_non_string_key_but_huge_number_instead.json {9999E9999:1}
n_object_single_quote.json {'a':0}
n_object_trailing_comma.json {"id":0,}
n_object_unquoted_key.json {a: "b"}
n_string_backslash_00.json ["\00"] <=> ["\"]
n_string_escape_x.json ["\x00"]
n_string_escaped_ctrl_char_tab.json ["\09"] <=> ["\ "]
n_string_escaped_emoji.json ["\F09F8C80"] <=> ["\🌀"]
n_string_invalid_backslash_esc.json ["\a"]
n_string_single_quote.json ['single quote']
n_string_unescaped_crtl_char.json ["a00a"] <=> ["aa"]
n_string_unescaped_newline.json ["new0Aline"] <=> ["new line"]
n_string_unescaped_tab.json ["09"] <=> [" "]
n_string_unicode_CapitalU.json "\UA66D"
y_number.json [123e65]
y_number_real_exponent.json [123e45]
y_number_real_fraction_exponent.json [123.456e78]

Common Lisp yason
i_number_double_huge_neg_exp.json [123.456e-789]
i_number_huge_exp.json [0.4e0066999999999999999999999999999(...)
i_number_neg_int_huge_exp.json [-1e+9999]
i_number_pos_double_huge_exp.json [1.5e+9999]
i_number_real_neg_overflow.json [-123123e100000]
i_number_real_pos_overflow.json [123123e100000]
i_number_real_underflow.json [123e-10000000]
i_number_too_big_neg_int.json [-123123123123123123123123123123]
i_number_too_big_pos_int.json [100000000000000000000]
i_number_very_big_negative_int.json [-2374623746732768942798327498324234(...)
i_object_key_lone_2nd_surrogate.json {"\uDFAA":0}
i_string_1st_surrogate_but_2nd_missing.json ["\uDADA"]
i_string_1st_valid_surrogate_2nd_invalid.json ["\uD888\u1234"]
i_string_UTF-16LE_with_BOM.json FFFE[00"00E900"00]00 <=> [""]
i_string_UTF-8_invalid_sequence.json ["E697A5D188FA"] <=> ["日ш"]
i_string_UTF8_surrogate_U+D800.json ["EDA080"] <=> [""]
i_string_incomplete_surrogate_and_escape_valid.json ["\uD800\n"]
i_string_incomplete_surrogate_pair.json ["\uDd1ea"]
i_string_incomplete_surrogates_escape_valid.json ["\uD800\uD800\n"]
i_string_invalid_lonely_surrogate.json ["\ud800"]
i_string_invalid_surrogate.json ["\ud800abc"]
i_string_invalid_utf-8.json ["FF"] <=> [""]
i_string_inverted_surrogates_U+1D11E.json ["\uDd1e\uD834"]
i_string_iso_latin_1.json ["E9"] <=> [""]
i_string_lone_second_surrogate.json ["\uDFAA"]
i_string_lone_utf8_continuation_byte.json ["81"] <=> [""]
i_string_not_in_unicode_range.json ["F4BFBFBF"] <=> [""]
i_string_overlong_sequence_2_bytes.json ["C0AF"] <=> [""]
i_string_overlong_sequence_6_bytes.json ["FC83BFBFBFBF"] <=> [""]
i_string_overlong_sequence_6_bytes_null.json ["FC8080808080"] <=> [""]
i_string_truncated-utf-8.json ["E0FF"] <=> [""]
i_string_utf16BE_no_BOM.json 00[00"00E900"00] <=> [""]
i_string_utf16LE_no_BOM.json [00"00E900"00]00 <=> [""]
i_structure_500_nested_arrays.json [[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[(...)
i_structure_UTF-8_BOM_empty_object.json EFBBBF{} <=> {}
n_array_comma_after_close.json [""],
n_array_extra_close.json ["x"]]
n_array_extra_comma.json ["",]
n_array_just_minus.json [-]
n_array_number_and_comma.json [1,]
n_multidigit_number_then_00.json 12300 <=> 123
n_number_-01.json [-01]
n_number_-1.0..json [-1.0.]
n_number_-2..json [-2.]
n_number_0.1.2.json [0.1.2]
n_number_0.3e+.json [0.3e+]
n_number_0.3e.json [0.3e]
n_number_0.e1.json [0.e1]
n_number_0_capital_E+.json [0E+]
n_number_0_capital_E.json [0E]
n_number_0e+.json [0e+]
n_number_0e.json [0e]
n_number_1.0e+.json [1.0e+]
n_number_1.0e-.json [1.0e-]
n_number_1.0e.json [1.0e]
n_number_1eE2.json [1eE2]
n_number_2.e+3.json [2.e+3]
n_number_2.e-3.json [2.e-3]
n_number_2.e3.json [2.e3]
n_number_9.e+.json [9.e+]
n_number_expression.json [1+2]
n_number_invalid+-.json [0e+-1]
n_number_neg_int_starting_with_zero.json [-012]
n_number_neg_real_without_int_part.json [-.123]
n_number_real_without_fractional_part.json [1.]
n_number_with_leading_zero.json [012]
n_object_bracket_key.json {[: "x"}0A <=> {[: "x"}
n_object_non_string_key.json {1:1}
n_object_non_string_key_but_huge_number_instead.json {9999E9999:1}
n_object_repeated_null_null.json {null:null,null:null}
n_object_single_quote.json {'a':0}
n_object_trailing_comma.json {"id":0,}
n_object_trailing_comment.json {"a":"b"}/**/
n_object_trailing_comment_open.json {"a":"b"}/**//
n_object_trailing_comment_slash_open.json {"a":"b"}//
n_object_trailing_comment_slash_open_incomplete.json {"a":"b"}/
n_object_unquoted_key.json {a: "b"}
n_object_with_trailing_garbage.json {"a":"b"}#
n_string_unescaped_crtl_char.json ["a00a"] <=> ["aa"]
n_string_unescaped_newline.json ["new0Aline"] <=> ["new line"]
n_string_unescaped_tab.json ["09"] <=> [" "]
n_string_with_trailing_garbage.json ""x
n_structure_array_trailing_garbage.json [1]x
n_structure_array_with_extra_array_close.json [1]]
n_structure_close_unopened_array.json 1]
n_structure_double_array.json [][]
n_structure_number_with_trailing_garbage.json 2@
n_structure_object_followed_by_closing_object.json {}}
n_structure_object_with_trailing_garbage.json {"a": true} "x"
n_structure_trailing_#.json {"a":"b"}#{}
y_number.json [123e65]
y_number_real_exponent.json [123e45]
y_number_real_fraction_exponent.json [123.456e78]

Crystal

Elixir ExJSON

Elixir Jason

Elixir Json

Elixir Poison

Free Pascal fcl-json

Go 1.7.1

Haskell Aeson 0.11.2.1

Java Actson 1.2.0

Java BFO v1

Java Jackson 2.8.4

Java Mergebase Java2Json 2019.09.09

Java com.leastfixedpoint.json 1.0

Java gson 2.7

Java json-simple 1.1.1

Java nanojson 1.0

Java nanojson 1.1

Java org.json 2016-08-15

JavaScript

Json.NET 9.0.1

Lua JSON 20160916.19

Lua dkjson

Nim

OCaml Orsetto

OCaml Yojson

Obj-C Apple NSJSONSerialization

Obj-C JSONKit

Obj-C SBJSON 4.0.3

Obj-C SBJSON 4.0.4

Obj-C SBJson 5.0.0

Obj-C TouchJSON

PHP 5.5.36

Perl Cpanel::JSON::XS

Perl JSON::PP

Perl JSON::Parse

Perl JSON::SL

Perl JSON::Tiny

Perl JSON::XS

Perl MarpaX::ESLIF::ECMA404

Perl Mojo::JSON

Perl Pegex::JSON

Python 2.7.10

Python 3.5.2

Python cjson 1.10

Python demjson 2.2.4

Python demjson 2.2.4 (jsonlint)

Python demjson 2.2.4 (py3)

Python simplejson 3.10

Python ujson 1.35

Qt JSON

R jsonlite

R rjson

Ruby

Ruby Oj (compat mode)

Ruby Oj (strict mode)

Ruby Yajl

Ruby regex

Rust json-rust

Rust rustc_serialize::json

Rust serde_json

Scala Dijon 0.3.0

Squeak JSON-tonyg

Swift Apple JSONSerialization

Swift Freddy 2.1.0

Swift Freddy 20160830

Swift Freddy 20161018

Swift Freddy 20170118

Swift JSON 20170522

Swift PMJSON 1.1.0

Swift PMJSON 1.2.0

Swift PMJSON 1.2.1

Swift STJSON

Xidel Internet Tools