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@itslil/zod

v4.4.3

Published

Zod 4.4.3 reimplemented in LilScript. Drop-in ESM/CJS runtime with official types.

Vulnerabilities

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Links

Git

Maintainers

yeargunyeargun

Keywords

zodschemavalidationtypescriptlilscriptitslil

Readme

@itslil/zod

Zod 4.4.3 reimplemented in LilScript. Same classic API and official types. Internals can be mangled; only the public API stays named.

Official classic suite: 1353 / 1353.

Site: yeargun.github.io/zodlil

npm install @itslil/zod
import { z } from "@itslil/zod"

const User = z.object({
  email: z.string().email(),
  age: z.number().int().min(0),
})

User.parse({ email: "[email protected]", age: 20 })

This is an independent port of [email protected]. It is not affiliated with Colin McDonnell.

Mangle on / off

public_aggregate_abi = "named" in every config, so z, parse, object, string, and the rest of the developer-facing API keep their names.

| Config | Lane | Identifiers / properties | | --- | --- | --- | | lilscript.dev.toml / lilscript.toml | closer-world | on | | lilscript.nomangle.toml | normal | off |

The published file is closer-world. Benchmarks always measure both lanes against official [email protected] after Oxc and Terser.

Size

lilscript-codec raw / gzip-9 / Brotli-11. Official rows are an esbuild bundle of [email protected] v4, then Oxc or Terser.

| Lane | raw | gzip-9 | Brotli-11 | vs Oxc raw / gzip / Brotli | | --- | ---: | ---: | ---: | ---: | | Official · Oxc closer-world (baseline) | 309,045 | 66,383 | 54,791 | 1.000× / 1.000× / 1.000× | | Official · Oxc normal | 395,062 | 72,680 | 59,496 | 1.278× / 1.095× / 1.086× | | Official · Terser closer-world | 280,301 | 63,734 | 52,561 | 0.907× / 0.960× / 0.959× | | Official · Terser normal | 367,526 | 70,452 | 57,503 | 1.189× / 1.061× / 1.049× | | @itslil/zod · closer-world | 132,595 | 39,649 | 34,152 | 0.429× / 0.597× / 0.623× | | @itslil/zod · normal | 197,579 | 53,968 | 44,208 | 0.639× / 0.813× / 0.807× |

Closer-world is 0.429× / 0.597× / 0.623× the official Oxc closer-world row. Normal (mangle off) stays larger than closer-world, as expected.

Performance

Same 48-object batch, 400 rounds per sample. Quiet median after discarding the first 3. Chromium is Playwright; Node is v24. Both LilScript lanes match official output. Ratio is lane / official (lower is faster).

| Lane | Chromium µs | vs official | Node µs | vs official | | --- | ---: | ---: | ---: | ---: | | [email protected] | 0.219 | 1.00× | 0.260 | 1.00× | | @itslil/zod · closer-world | 0.286 | 1.31× | 0.477 | 1.83× | | @itslil/zod · normal | 0.255 | 1.17× | 0.291 | 1.12× |

PATH="$HOME/.nvm/versions/node/v24.11.1/bin:$PATH" npm test
PATH="$HOME/.nvm/versions/node/v24.11.1/bin:$PATH" npm run measure
npx playwright install chromium
PATH="$HOME/.nvm/versions/node/v24.11.1/bin:$PATH" npm run bench