Is fastbitset safe to use?

fastbitset has no known vulnerabilities on the latest version (0.5.2). DepScope rates its health at 68/100 (moderate risk).

What is the latest version of fastbitset?

The latest version of fastbitset is 0.5.2, released 2026-02-26.

Does fastbitset have known vulnerabilities?

No known vulnerabilities on the latest version of fastbitset.

Is fastbitset deprecated?

No, fastbitset is actively maintained. Latest release: 0.5.2 (2026-02-26).

What are alternatives to fastbitset?

Popular alternatives to fastbitset in npm include: semver, ansi-styles, minimatch, debug, brace-expansion.

What license does fastbitset use?

fastbitset is licensed under Apache-2.0.

fastbitset

npmv0.5.2

Speed-optimized BitSet implementation for modern browsers and JavaScript engines

License Apache-2.0permissive32 versions1 maintainers2 deps1,297 weekly dl

lemire/FastBitSet.js

/ 100

Health

use with caution

[email protected] low health (68/100) — consider alternatives

Moderate health score (68/100) — verify manually

Health breakdown0 – 100

20/25

maintenance

6/20

popularity

25/25

security

15/15

maturity

2/15

community

Vulnerabilities

none known

Bundle & TypeScript

📦

Bundle Size

8.6 KBminified

1.8 KB gzipped

2 direct dependencies

side effects

🌟

TypeScript

7/10typed

Types from @types/fastbitset (DefinitelyTyped)

Health History

Dependency Tree

License Audit

Dependencies (2)

bl minimist

API access

Get this data programmatically — free, no authentication.

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