preactjs/signals

Health v2 · maintenance only

Adoption not part of the score

4475 stars · 129 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

Signals is a performant, reactive state management library from the Preact team, providing signal, computed, effect, and batch primitives with automatic dependency tracking. It ships framework integrations for Preact and React so components re-render automatically when signal values change, with minimal bundle overhead.

Use cases

• manage shared app state without selectors or wrapper functions
• replace useState or Redux with fine-grained reactive state in React
• derive computed values that update automatically when dependencies change
• optimize rendering performance in large Preact or React apps
• use reactive state outside of components, such as in business logic modules
• add SSR-compatible state management to a React app

When to choose

• you use Preact or React and want lightweight, fast state management
• you need reactive state usable inside and outside components
• bundle size and update performance are priorities
• you want gradual adoption alongside hooks or class components

When to avoid

• you use Vue, Svelte, or Angular with their own built-in reactivity
• you need a full state management solution with devtools, middleware, and time-travel debugging
• your team standardizes on a single store pattern like Redux or Zustand

Facets

library · maturity active

state-management frontend-framework frontend web-development browser cross-platform signals reactivity preact react typescript fine-grained-reactivity nodejs

Member repositories

For agents

markdown · JSON · MCP: product_card(name="preactjs/signals")