{
  "id": "6eeb1052e1f1895621cfc7f4",
  "source": "solid:signals",
  "type": "github-document",
  "title": "is-server",
  "content": "---\ntitle: isServer\nuse_cases: \u003e-\n  conditional rendering, ssr vs client code, bundle optimization,\n  environment-specific logic, code splitting\ntags:\n  - ssr\n  - environment\n  - bundling\n  - optimization\n  - conditional\nversion: '1.0'\ndescription: \u003e-\n  Detect server or browser environment with isServer. Optimize bundle sizes by\n  conditionally including code for specific runtime environments.\n---\n\n```ts\nimport { isServer } from \"solid-js/web\"\n\nconst isServer: boolean\n\n```\n\nThis indicates that the code is being run as the server or browser bundle.\nAs the underlying runtimes export this as a constant boolean it allows bundlers to eliminate the code and their used imports from the respective bundles.\n\n```ts\nimport { isServer } from \"solid-js/web\";\n\nif (isServer) {\n\t// I will never make it to the browser bundle\n} else {\n\t// won't be run on the server;\n}\n```",
  "url": "https://github.com/solidjs/solid-docs/blob/HEAD/src/routes/reference/rendering/is-server.mdx",
  "metadata": {
    "path": "src/routes/reference/rendering/is-server.mdx",
    "repo": "solidjs/solid-docs",
    "repo_url": "https://github.com/solidjs/solid-docs.git",
    "size": 868,
    "source_type": "github"
  },
  "hash": "9ad0b64f451ebd7ceaa5dfe73b42436285ddbac7fd2ff50720ca3c5913a89fac",
  "timestamp": "2026-02-23T11:43:00.190361623+01:00"
}