jsmn
Jsmn - a world fastest JSON parser - in pure Nim
Summary
| Latest Version | Unknown |
|---|---|
| License | MIT |
| CI Status | Failing |
| Downloads | 0 |
| Last Indexed | 2026-07-21 05:24 |
Tags
Installation
nimble install jsmn
choosenim install jsmn
git clone https://github.com/OpenSystemsLab/jsmn.nim
OS Compatibility
| Platform | Linux | macOS | Windows | FreeBSD | OpenBSD | NetBSD | Android | iOS | WASM | Embedded |
|---|---|---|---|---|---|---|---|---|---|---|
| jsmn | ✓ | ✓ | ✓ | - | - | - | - | - | - | - |
Source
| Repository | https://github.com/OpenSystemsLab/jsmn.nim |
|---|---|
| Homepage | https://github.com/OpenSystemsLab/jsmn.nim |
| Registry Source | nimble_official |
README
jsmn.nim
Jsmn - a world fastest JSON parser - in pure Nim
According to this benchmark script with about 3MB JSON of World Bank dataset, JSMN is 2-2.5 times faster than marshal
Usage
import jsmn
const
json = """{
"user": "johndoe",
"admin": false,
"uid": 1000,
"groups": ["users", "wheel", "audio", "video"]}"""
var tokens = newSeq[JsmnToken](32) # expect not more than 32 tokens
let r = parseJson(json, tokens)
for i in 1..r:
var token = addr tokens[i]
echo "Kind: ", token.kind
echo "Value: ", json[token.start..<token.stop]