facebook/fbjs
A collection of utility libraries used by other Meta JS projects. observed · 2026-08-28
Health v2 · maintenance only
61/100
- Activity 63
- Release rhythm 35
- Longevity 100
Flags: no_releases
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.
- gap_med: n/a
- age_days: 4115
- days_rel: n/a
- days_push: 224
- n_releases_24m: 0
Adoption not part of the score
1961 stars · 309 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
FBJS is a collection of utility libraries published by Meta to share JavaScript code across its own projects like React and Relay. It is primarily intended for internal Meta use, with APIs that may change without strict semver guarantees.
Use cases
- share common JavaScript utilities across multiple projects
- use the same helper libraries that React and Relay depend on
- consume small utility packages from a monorepo
- find lightweight JS helpers for events, DOM, or core utilities
When to choose
- you are working within Meta's JS ecosystem or need compatibility with its projects
- you need a specific small utility package that FBJS provides
When to avoid
- you want a stable, semver-guaranteed library for production use
- you expect feature requests or community support
- a more general-purpose utility library like lodash would fit better
Facets
library · maturity maintenance
developer-tools developer-tools web-development frontend browser utilities facebook meta monorepo shared-code nodejs javascript
2 sources
- readme: https://github.com/facebook/fbjs · fetched 2026-08-28 · f3452cdd1af5
- registry_npm: https://registry.npmjs.org/fbjs · fetched 2026-08-29 · 4a3b53f94bd1
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| facebook/fbjs | main | 61 |
For agents
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem