run-all-now

Run npm scripts in sequence or parallel without npm-run-all's dependency tree.

run-all-now is an API-compatible replacement for npm-run-all. It keeps the familiar npm-run-all, run-s, and run-p commands, supports CommonJS and ESM, and uses one native Rust binary for orchestration.

Original package links: npm-run-all on npm, mysticatea/npm-run-all on GitHub.

Install

npm i -D run-all-now

Node.js 18+ is required for the package API and launchers.

The package does not run preinstall, install, or postinstall scripts. The JavaScript launchers select the matching optional native package at runtime. If the native binary is missing for your platform, run-all-now fails loudly instead of silently falling back to slower shell tooling.

Replace the package, not your scripts:

- npm i -D npm-run-all
+ npm i -D run-all-now

{
  "scripts": {
    "build": "run-s clean build:*",
    "dev": "run-p watch:*",
    "ci": "npm-run-all --silent lint test build"
  }
}

CLI

run-s clean lint build
run-p --max-parallel 4 "watch:* -- --color"
npm-run-all clean --parallel "build:* -- --watch" --sequential test

run-s runs scripts sequentially. run-p runs scripts in parallel. npm-run-all supports mixed sequential and parallel groups.

Supported compatibility flags:

• -c, --continue-on-error
• -l, --print-label
• -n, --print-name
• -p, --parallel
• -s, --sequential, --serial, --silent in run-s / run-p
• -r, --race
• --aggregate-output
• --max-parallel <number>
• --npm-path <path>
• -- argument forwarding and {1}, {@}, {*}, {n:-default}, {n:=default} placeholders

Glob-like script patterns use : as the separator:

run-s build:*
run-p watch:**

Node API

CommonJS:

const runAll = require('run-all-now')

ESM:

import runAll from 'run-all-now'

Use the same function in both module systems:

await runAll(['clean', 'lint', 'build:*'], {
  parallel: false,
  stdout: process.stdout,
  stderr: process.stderr
})

await runAll(['watch:* -- --color'], {
  parallel: true,
  maxParallel: 4,
  printLabel: true
})

Resolved values match npm-run-all:

[
  { name: 'clean', code: 0 },
  { name: 'lint', code: 0 }
]

Failures reject with NpmRunAllError and include error.results.

Compatibility

run-all-now runs tasks through npm or yarn. It does not reimplement package-manager script semantics. This keeps environment setup, lifecycle behavior, and script argument forwarding compatible with existing projects.

Native packages are available for macOS, Linux, and Windows on x64/arm64.

Benchmark

Local darwin-arm64 snapshot. Runtime uses npm run benchmark with run-s --silent noop:0. Lower is better.

| Metric | npm-run-all | run-all-now | Improvement | | --- | ---: | ---: | ---: | | Direct runtime deps | 9 | 0 | 9 fewer | | node_modules size | 17.6 MB | 552 KiB | 32.6x smaller | | Average runtime | 201 ms | 150 ms | 1.34x faster | | Peak memory footprint | 24.4 MB | 13.3 MB | 1.83x smaller |

%%{init: {"theme": "dark", "themeVariables": {"xyChart": {"plotColorPalette": "#fb7185,#22c55e"}}}}%%
xychart-beta
  title "Dependencies: 9 fewer direct runtime deps"
  x-axis ["direct runtime deps"]
  y-axis "count" 0 --> 10
  bar [9]
  bar [0]

%%{init: {"theme": "dark", "themeVariables": {"xyChart": {"plotColorPalette": "#fb7185,#22c55e"}}}}%%
xychart-beta
  title "Installed size: 32.6x smaller"
  x-axis ["node_modules MB"]
  y-axis "MB" 0 --> 18
  bar [17.6]
  bar [0.54]

%%{init: {"theme": "dark", "themeVariables": {"xyChart": {"plotColorPalette": "#fb7185,#22c55e"}}}}%%
xychart-beta
  title "Speed: 1.34x faster"
  x-axis ["average runtime ms"]
  y-axis "ms" 0 --> 220
  bar [201]
  bar [150]

In each chart, the first bar is npm-run-all and the second green bar is run-all-now.

Run the benchmark locally:

npm run build
npm run benchmark

Development

cargo fmt --check
cargo clippy --all-targets -- -D warnings
npm test
npm run pack:check

License

MIT