Benchmarks

Generated: 2026-02-09 Node: v20.20.0

Summary

• Each query is time-boxed per dataset (see targetMs in results.json).
• Eval is disabled unless required by a query.
• Suite includes RFC 9535 filter functions (length/match) and reverse slices.
• Datasets cover small fixtures, synthetic collections, deep trees, wide objects, large arrays, and Unicode-heavy keys.
• Datasets: 7 (fixture, synthetic, nested, wide, array, unicode, cars).
• Queries: 43 total (9 eval, 34 non-eval).
• Tags: recursion, filters, rfc-functions, reverse-slice, unicode.
• Cars dataset is loaded from bench/cars.json (~100MB).
• Some queries are unsupported by certain engines and marked as such.

Results

Fixture (Goessner)

Query	Path	Eval	JsonPathX ops/sec	JSONPath Plus ops/sec	jsonpath ops/sec	Winner
root	$	false	8,046,527	2,345,368	717,073	jsonpathx
dot	$.store.book[0].author	false	4,926,395	904,831	57,109	jsonpathx
bracket	$['store']['book'][0]['author']	false	4,970,136	837,962	43,979	jsonpathx
union-names	$.store['book','bicycle']	false	703,095	606,648	62,627	jsonpathx
wildcard	$.store.*	false	745,957	1,113,069	108,413	jsonpath-plus
recursive	$..author	false	806,756	256,003	79,191	jsonpathx
slice	$.store.book[0:2]	false	574,346	535,521	65,125	jsonpathx
slice-negative	$.store.book[-3:-1]	false	570,608	509,291	65,355	jsonpathx
index-negative	$.store.book[-1]	false	5,256,257	1,350,351	74,531	jsonpathx
union	$.store.book[0,2]	false	544,833	535,831	55,420	tie (jsonpathx)
filter	$..book[?(@.price < 10)]	native	497,775	2,689	45,892	jsonpathx
script	$..book[(@.length-1)]	native	472,701	2,774	23,510	jsonpathx
parent	$..book[?(@.price > 10)]^	native	348,668	2,899	unsupported	jsonpathx
property	$.store.*~	false	448,804	864,325	unsupported	jsonpath-plus
type-selector	$..*@number()	false	480,683	105,606	unsupported	jsonpathx
rfc-length	$..book[?length(@.author) > 3]	false	231,694	305,991	unsupported	jsonpath-plus
rfc-match	$..book[?match(@.author, '^[A-Z]')]	false	286,975	305,547	unsupported	jsonpath-plus

Synthetic (2k items)

Query	Path	Eval	JsonPathX ops/sec	JSONPath Plus ops/sec	jsonpath ops/sec	Winner
root	$	false	6,863,361	1,988,711	691,039	jsonpathx
synthetic-items	$.items[*].id	false	1,477	1,748	287	jsonpath-plus
synthetic-filter	$.items[?(@.price > 750 && @.tags.featured)].id	native	27,421	295	2,228	jsonpathx
synthetic-filter-heavy	$.items[?(@.price > 500 && @.specs.weight < 20)].id	native	6,423	268	1,231	jsonpathx
synthetic-recursive	$..tags.featured	false	609	268	83	jsonpathx
synthetic-groups	$.groups[*].items[*].id	false	1,502	1,614	282	jsonpath-plus
synthetic-slice	$.items[100:500:5].price	false	844,128	24,268	2,182	jsonpathx
synthetic-slice-reverse	$.items[200:0:-3].price	false	934,160	1,366,915	2,254	jsonpath-plus

Nested (tree)

Query	Path	Eval	JsonPathX ops/sec	JSONPath Plus ops/sec	jsonpath ops/sec	Winner
root	$	false	6,615,926	2,049,127	694,671	jsonpathx
nested-recursive	$.tree..leaf	false	45,585	8,113	4,353	jsonpathx
nested-siblings	$.tree.siblings[*].leaf	false	436,588	725,431	58,506	jsonpath-plus
nested-filter	$..[?(@.leaf == true)]	native	12,493	683	3,045	jsonpathx

Wide (2k keys)

Query	Path	Eval	JsonPathX ops/sec	JSONPath Plus ops/sec	jsonpath ops/sec	Winner
root	$	false	6,715,609	2,046,392	680,597	jsonpathx
wide-specific	$.props.key_1999.value	false	4,689,267	960,650	79,980	jsonpathx
wide-wildcard	$.props.*.value	false	1,184	1,393	267	jsonpath-plus
wide-filter	$.props.*[?(@.nested.flag)].value	native	unsupported	unsupported	3	jsonpath
wide-recursive	$..value	false	1,307	380	204	jsonpathx

Array (50k items)

Query	Path	Eval	JsonPathX ops/sec	JSONPath Plus ops/sec	jsonpath ops/sec	Winner
root	$	false	6,745,575	2,075,778	649,101	jsonpathx
array-slice-large	$.data[1000:5000:7]	false	14,541	6,411	61	jsonpathx
array-union	$.data[0,100,1000,10000]	false	541,916	352,507	152	jsonpathx
array-last	$.data[-1]	false	6,032,133	1,626,719	614	jsonpathx

Unicode (quoted names)

Query	Path	Eval	JsonPathX ops/sec	JSONPath Plus ops/sec	jsonpath ops/sec	Winner
root	$	false	6,862,365	2,127,418	697,996	jsonpathx
unicode-quoted	$['naïve key']['emoji😀'][*]['sp ace']	false	409,279	675,471	41,442	jsonpath-plus
unicode-recursive	$..['sp ace']	false	1,552,253	460,134	104,240	jsonpathx

Cars (100MB)

Query	Path	Eval	JsonPathX ops/sec	JSONPath Plus ops/sec	jsonpath ops/sec	Winner
root	$	false	6,945,844	2,130,874	711,466	jsonpathx
cars-brand	$.cars[*].brand.name	false	48	44	0	jsonpathx
cars-models	$.cars[:25].model	false	987,413	70,610	142	jsonpathx
cars-union	$.cars[0,1,2].manufacturer	false	359,668	340,728	649	jsonpathx
cars-recursive	$..engineDisplacement	false	13	12	2	jsonpathx
cars-filter	$.cars[?(@.fuelType == 'Petrol')].model	native	68	16	1	jsonpathx
cars-script	$.cars[(@.length-1)].model	native	466,121	2,895	1,064	jsonpathx
cars-property	$.cars[0].extraFeatures.*~	false	212,064	379,385	unsupported	jsonpath-plus