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brace-expansion

npmv5.0.9TypeScript

Brace expansion as known from sh/bash

Safe to adopt

Yes — brace-expansion scores well across adoption, maintenance, weight, supply chain, and licensing. 612.2M downloads per week and 1 known dependents. Last published 41 days ago. 29 releases in the last 2 years.

  • AAdoption: grade A, Excellent.

    612.2M downloads per week and 1 known dependents.

  • AMaintenance: grade A, Excellent.

    Last published 41 days ago. 29 releases in the last 2 years.

  • AWeight: grade A, Excellent.

    Pulls in 1 transitive package, about 86 KB installed.

  • ASupply chain: grade A, Excellent.

    No install scripts, 2 maintainers, and a contained dependency surface.

  • ALicense: grade A, Excellent.

    MIT — permissive, with no copyleft found in the dependency tree.

Grades are computed deterministically from registry metadata collected by PackageGraph — downloads, dependents, publish dates, the resolved dependency tree, maintainer count, and declared licenses. No third-party scores are used.

Install cost

What you actually take on by adding brace-expansion to a project.

1
Direct dependencies

Runtime packages this one declares itself.

1
Total installed

Distinct packages in the full runtime tree, deduplicated the way a package manager would.

86 KB
Install size

Unpacked size of this package plus its entire runtime tree.

1
Tree depth

Longest resolved dependency chain below this package.

Licenses in the dependency tree

MIT

Every license you inherit by installing brace-expansion, not just its own. Check this before a legal review, not after.

Compatibility

Node.js
node 20 || >=22
Module format
ESM + CommonJS
TypeScript
Types included
Install scripts
None

Quick start

A usage example from the brace-expansion README.

jsFull README ↗
import { expand } from 'brace-expansion'

expand('file-{a,b,c}.jpg')
// => ['file-a.jpg', 'file-b.jpg', 'file-c.jpg']

expand('-v{,,}')
// => ['-v', '-v', '-v']

expand('file{0..2}.jpg')
// => ['file0.jpg', 'file1.jpg', 'file2.jpg']

expand('file-{a..c}.jpg')
// => ['file-a.jpg', 'file-b.jpg', 'file-c.jpg']
Example truncated — see the full README.

Dependencies

Declared by brace-expansion v5.0.9. Runtime dependencies are installed with the package; dev dependencies are not.

Runtime (1)

balanced-match ^4.0.2

Dev (7)

@types/brace-expansion ^1.1.2@types/node ^25.2.1mkdirp ^3.0.1prettier ^3.3.2tap ^21.6.2tshy ^3.0.2typedoc ^0.28.5

Used by

Popular packages that depend on brace-expansion.

minimatchnpm

a glob matcher in javascript

↓ 0/wk◈ 10 dependents⚖ BlueOak-1.0.0TS

Relationship graph

Dependencies (left) and dependents (right) of brace-expansion.

balanced-matchminimatchbrace-expansion
brace-expansion dependencies dependents

Frequently installed together

prettiernpm

Prettier is an opinionated code formatter

↓ 132.4M/wk◈ 159 dependents⚖ MITTS
@types/nodenpm

TypeScript definitions for node

↓ 0/wk◈ 323 dependents⚖ MITTS

Release history

29 releases in the last two years, typically about 1 day apart.

Recent versions of brace-expansion
VersionPublishedSizeLicense
1.1.181 month ago18 KBMIT
2.1.41 month ago16 KBMIT
3.0.61 month ago18 KBMIT
5.0.9latest1 month ago69 KBMIT
1.1.171 month ago17 KBMIT
3.0.51 month ago17 KBMIT
2.1.31 month ago16 KBMIT
3.0.41 month ago17 KBMIT
3.0.31 month ago36 MBMIT
5.0.81 month ago63 KBMIT
2.1.22 months ago143 KBMIT
1.1.162 months ago143 KBMIT
5.0.72 months ago50 KBMIT
1.1.153 months ago11 KBMIT
2.1.13 months ago11 KBMIT

Overview

brace-expansion is an npm package that brace expansion as known from sh/bash. It is extremely widely used, with about 612.2M downloads per week and 1 known dependents in the graph. The latest version is 5.0.9, released under the MIT license.

Who should use it

Teams working in the npm ecosystem who need brace expansion as known from sh/bash and value a battle-tested, widely-adopted solution.

When not to use it

Consider an alternative if you need to or if a more actively-maintained option better fits your npm stack.

Pros

  • Large, well-established user base (612.2M weekly downloads).
  • Ships TypeScript type definitions.
  • Clear open-source license (MIT).

Cons

  • No significant drawbacks detected from available metadata.

Auto-generated from collected registry metadata. No external claims are inferred.

Maintainers

isaacsjuliangruber

Frequently asked questions

Should I use brace-expansion?

Yes — brace-expansion scores well across adoption, maintenance, weight, supply chain, and licensing. 612.2M downloads per week and 1 known dependents. Last published 41 days ago. 29 releases in the last 2 years.

How do I install brace-expansion?

Run `npm install brace-expansion` to add brace-expansion to your npm project.

How many dependencies does brace-expansion have?

brace-expansion declares 8 direct dependencies and pulls in 1 packages in total once its runtime tree is resolved totalling about 86 KB on disk.

What license is brace-expansion released under?

brace-expansion is distributed under the MIT license.

How popular is brace-expansion?

brace-expansion has approximately 612,242,916 downloads per week and 1 known dependent packages.

Is brace-expansion still maintained?

The most recent release of brace-expansion (v5.0.9) was published 1 month ago.

Does brace-expansion run install scripts?

No. brace-expansion does not define preinstall, install, or postinstall scripts, so installing it does not execute publisher-supplied code.