json-serde

Text & data

Parse and re-serialize JSON documents.

Input

Include multi-thread versions

Machine

Apple M5 laptop · Oct 20, 2026 · 27 results

json-serde results for input canada 15, fastest first
#	Language	Code	Time (log scale)	vs best	± stddev	Peak mem	Compiler
1	Rust	5-i.rsintrinsics	91ms	1.00×	1.0ms	54.1MB	rustc 1.88.0
2	Rust	4-i.rsintrinsics	111ms	1.22×	4.3ms	55.4MB	rustc 1.88.0
3	Rust	3.rs	150ms	1.64×	4.0ms	238.8MB	rustc 1.88.0
4	Rust	2.rs	151ms	1.66×	1.2ms	237.7MB	rustc 1.88.0
5	JavaScript	1.js	182ms	2.00×	1.0ms	199.1MB	bun 1.2.19
6	Rust	1.rs	248ms	2.72×	2.5ms	551.3MB	rustc 1.88.0
7	Zig	2.zig	254ms	2.78×	14ms	348.9MB	zig 0.14.1
8	JavaScript	1.js	321ms	3.52×	3.7ms	200.7MB	node 24.4.1
9	C++	1.cpp	327ms	3.59×	1.8ms	175.8MB	g++ 15.1.0
10	Crystal	1.cr	438ms	4.80×	20ms	205.1MB	crystal 1.17.0
11	Go	1.go	496ms	5.45×	12ms	104.9MB	go 1.24.5
12	Dart	1.dart	709ms	7.78×	3.4ms	204.2MB	dart/exe 3.8.2
13	TypeScript	1.ts	732ms	8.03×	1.0ms	417.5MB	deno 2.4.3
14	Nim	2.nim	737ms	8.09×	35ms	330.8MB	nim 2.2.4
15	PHP	1.php	852ms	9.35×	38ms	268.5MB	php 8.2.29
16	C#	2.cs	901ms	9.88×	27ms	186.9MB	dotnet 9.0.303
17	Java	1.java	1.15s	12.60×	2.8ms	336.1MB	openjdk 21
18	Swift	1.swift	1.27s	13.97×	94ms	211.0MB	swift 6.1.2
19	Python	1.py	1.31s	14.34×	32ms	221.1MB	cpython 3.13.5
20	Ruby	1.rb	1.48s	16.25×	25ms	153.4MB	ruby/yjit 3.4.5
21	Java	1.java	1.67s	18.35×	50ms	2.0GB	openjdk/zgc 21
22	Ruby	1.rb	1.88s	20.60×	111ms	152.8MB	ruby 3.4.5
23	Kotlin	1.kt	1.93s	21.21×	210ms	664.9MB	kotlin/jvm 21
24	C	1.c	2.59s	28.46×	32ms	225.2MB	gcc 15.1.0
25	C#	1.cs	2.89s	31.74×	173ms	535.2MB	dotnet 9.0.303
26	OCaml	2.ml	4.87s	53.43×	191ms	264.0MB	ocaml 5.3
27	Perl	1.pl	10.65s	116.83×	94ms	745.0MB	perl 5.40.2