# @lexical/internal

> Internal Lexical utilities shared across packages. Do not import directly; no semver guarantees apply to its API.

Latest version **0.51.0** (published 2026-09-17) · MIT license · 0 weekly downloads

## Install

```sh
npm install @lexical/internal
pnpm add @lexical/internal
yarn add @lexical/internal
bun add @lexical/internal
```

## Health

**Score 75/100 (B)** — status: active.

Positive: has types; esm support; no vulnerabilities; has provenance; recently updated; high maintenance score; popular repo.

Warnings: low downloads; pre 1.0.

## Facts

| | |
|---|---|
| Version | 0.51.0 |
| Published | 2026-09-17 |
| First published | 2026-05-28 |
| Weekly downloads | 0 |
| License | MIT |
| TypeScript types | bundled |
| Module format | ESM |
| Dependencies | 0 |
| Unpacked size | 35.4 KB |
| Known vulnerabilities | 0 |
| Install scripts | no |
| Provenance | attested (GitHub Actions) |
| GitHub stars | 23835 |
| Maintainers | fantactuka, zurfyx, acywatson, ipavlov001, trueadm, etrepum |
| Keywords | lexical, editor, rich-text, internal |

## Links

- npm: https://www.npmjs.com/package/@lexical/internal
- Repository: https://github.com/facebook/lexical
- npm.io page: https://npm.io/package/@lexical/internal

## Alternatives

- [ext-list](https://npm.io/package/ext-list.md) — 6.3M weekly downloads
- [@lexical/selection](https://npm.io/package/@lexical/selection.md) — 3.8M weekly downloads
- [@lexical/text](https://npm.io/package/@lexical/text.md) — 3.6M weekly downloads
- [@lexical/clipboard](https://npm.io/package/@lexical/clipboard.md) — 3.0M weekly downloads
- [@tiptap/extension-mention](https://npm.io/package/@tiptap/extension-mention.md) — 3.0M weekly downloads

## Recent versions

- 0.51.0 (latest) — 2026-09-17
- 0.51.1-nightly.20260924.0 (nightly) — 2026-09-24
- 0.45.1-dev.0 (dev) — 2026-05-30
- 0.51.1-nightly.20260923.0 — 2026-09-23
- 0.51.1-nightly.20260922.0 — 2026-09-22
- 0.51.1-nightly.20260921.0 — 2026-09-21
- 0.51.1-nightly.20260918.0 — 2026-09-18
- 0.50.1-nightly.20260917.0 — 2026-09-17
- 0.50.1-nightly.20260916.0 — 2026-09-16
- 0.50.1-nightly.20260915.0 — 2026-09-15
- 0.50.1-nightly.20260914.0 — 2026-09-14
- 0.50.1-nightly.20260911.0 — 2026-09-11
- 0.50.1-nightly.20260910.0 — 2026-09-10
- 0.50.1-nightly.20260909.0 — 2026-09-09
- 0.50.1-nightly.20260908.0 — 2026-09-08
- … 79 more at https://npm.io/package/@lexical/internal/versions

## README

# `@lexical/internal`

> [!WARNING]
> This package contains **internal** utilities shared across the Lexical
> packages: `invariant`/`devInvariant`, dev/prod error- and warning-message
> formatting, `warnOnlyOnce`, and the `LEXICAL_VERSION` constant. These are
> bound to the build's transforms and are inlined into every other package
> rather than shipped as a runtime dependency, so it is published only so the
> modules resolve through normal package resolution — including the `source`
> export condition used when developing against a linked checkout.
>
> It is **not** a public API. Import from `lexical` and the `@lexical/*`
> feature packages instead. Nothing here follows semver and any export may
> change or disappear without notice.

---
_Source: https://npm.io/package/@lexical/internal · Machine-readable twin of the npm.io package page. Health data is recomputed on every publish._