API Reference / API Methods / Install the JavaScript API Client

Install the JavaScript API Client

You are currently reading the JavaScript API Client v4 documentation. Read our migration guide to learn how to upgrade from v3 to v4. You can still access the v3 documentation.


npm is the recommended installation method when building large scale applications with the Algolia JavaScript API Client. It pairs nicely with module bundlers such as Webpack or Rollup.

npm install algoliasearch

For prototyping or learning purposes, algoliasearch is also available over CDN.

<!-- for the search only version -->
<script src="https://cdn.jsdelivr.net/npm/algoliasearch@4.5.1/dist/algoliasearch-lite.umd.js"></script>

<!-- for the default version -->
<script src="https://cdn.jsdelivr.net/npm/algoliasearch@4.5.1/dist/algoliasearch.umd.js"></script>

If you are using native ES Modules, there is also builds compatible with ES Modules:

<script type="module">
  // for the search only version
  import algoliasearch from 'https://cdn.jsdelivr.net/npm/algoliasearch@4/dist/algoliasearch-lite.esm.browser.js';

  // for the default version
  import algoliasearch from 'https://cdn.jsdelivr.net/npm/algoliasearch@4/dist/algoliasearch.esm.browser.js';

jsDelivr is a third-party CDN. We are not able to provide support regarding third party services.

Compatibility Note

algoliasearch supports all popular browsers, including Internet Explorer 11 and above, although some polyfills are required for older browsers: Promise, Object.entries, and Object.assign.

<script src="https://polyfill.io/v3/polyfill.min.js?features=Promise%2CObject.entries%2CObject.assign"></script>

Polyfill.io is a third-party CDN. We are not able to provide support regarding third party services.

algoliasearch supports Node.js 8.x and above.

Explanation of Different Builds

In the dist directory of the NPM package you will find different builds of algoliasearch. Here’s an overview of the difference between them:

  • algoliasearch-lite search only version of the api client, optimized for size and search:

    • algoliasearch-lite.umd.js
    • algoliasearch-lite.esm.browser.js
  • algoliasearch: default version of the api client, ready to work with all algolia features such as search, analytics, insights, and others:

    • algoliasearch.cjs.js
    • algoliasearch.umd.js
    • algoliasearch.esm.browser.js

Language-specific notes

The JavaScript client works both on the frontend (browsers) or on the backend (Node.js) with the same API.

The backend (Node.js) API can be used to index your data using your Algolia admin API keys.

Our JavaScript library is UMD compatible, you can use it with any module loader.

When not using any module loader, it will export an algoliasearch function in the window object.

Our JavaScript snippets use the ES6 syntax. While most modern browsers natively support ES6, make sure you adapt your code so it properly works your end users’ environment. To transpile ES6 code into ES5, we recommend using Babel. We also expose scoped packages such as @algolia/client-search in ES6, meaning you have to transform them as well.

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