is has no known vulnerabilities on the latest version (3.3.2). DepScope rates its health at 71/100 (moderate risk).

What is the latest version of is?

The latest version of is is 3.3.2, released 2025-07-19.

Does is have known vulnerabilities?

No known vulnerabilities on the latest version of is.

No, is is actively maintained. Latest release: 3.3.2 (2025-07-19).

What are alternatives to is?

Popular alternatives to is in npm include: ?, semver, minimatch, debug, brace-expansion.

is

npmv3.3.2

the definitive JavaScript type testing library

License MITpermissive31 versions1 maintainers0 deps2,775,091 weekly dl

enricomarino/is

/ 100

Health

safe to use

[email protected] is safe to use (health: 71/100)

Health breakdown0 – 100

10/25

maintenance

17/20

popularity

25/25

security

15/15

maturity

4/15

community

0/15

popularity_floor

Vulnerabilities

Bundle & TypeScript

📦

Bundle Size

4.9 KBminified

1.4 KB gzipped

0 direct dependencies

side effects

🌟

TypeScript

7/10typed

Types from @types/is (DefinitelyTyped)

Quality signals

OSS Criticality

0.68high

Health History

Dependency Tree

License Audit

API access

Get this data programmatically — free, no authentication.

curl https://depscope.dev/api/check/npm/is