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typeahead.js is an open-source JavaScript autocomplete library originally developed by Twitter. It provides fast, feature-rich autocomplete search experiences with suggestion display and custom datasets. It operates entirely client-side using locally provided data or AJAX calls to developer-controlled endpoints. The library itself has no data collection and no GDPR implications.
typeahead.js is an open-source autocomplete library originally created by Twitter''s engineering team. It provides fast, flexible autocomplete features with support for multiple datasets, suggestion templates, and prefetching. The library takes an input element and a dataset (either local or from a remote endpoint) and renders autocomplete suggestions as the user types. It operates entirely client-side.
typeahead.js itself has no GDPR implications. If it queries a remote endpoint, GDPR applies to what data that endpoint receives and returns — not to typeahead.js. If users can search for or find personal data via typeahead, access controls on the search endpoint are required.
No GDPR actions needed for typeahead.js. Install via npm. Secure any remote endpoint used for suggestions. Note that typeahead.js is no longer actively maintained — Autocomplete.js or downshift are modern alternatives.
Websites using typeahead.js must obtain user consent under GDPR regulations.
DPIA considerations
A DPIA is not required for typeahead.js. If the autocomplete searches an endpoint containing personal data, GDPR applies to that endpoint, not to typeahead.js.
Sample consent text
This application uses typeahead.js for search autocomplete. typeahead.js is a client-side library with no data collection. See our privacy policy for information about search queries.
Third-party domains contacted
github.comnpmjs.comCookies placed
| Name | Type | Duration | Purpose |
|---|---|---|---|
| typeahead_none | session | Session | typeahead.js sets no cookies — it is a client-side autocomplete library |
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No. typeahead.js is a client-side autocomplete library with no data collection.
No. It operates in browser memory with no persistent storage.
Not for the library itself. If your autocomplete queries an API, describe what that API receives in your privacy policy.
No. The library has no data processing capabilities.
No. typeahead.js is a client-side library. Queries go only to the endpoint you configure, not to Twitter or any third party.
typeahead.js is no longer actively maintained. Modern alternatives include Autocomplete.js (by Algolia), downshift, or Combobox implementations from Radix UI or Headless UI.
Install via npm (npm install typeahead.js) or download from the GitHub repository. Bundle with your application.
Apply access controls to the API endpoint so only authorised users can query it. Do not expose personal data in typeahead suggestions to unauthorised users. Log and audit access to endpoints returning personal data.