This is the official repository for useragent.one — a simple, dockerized API for serving realistic user-agent strings to browser-based environments.
- Frontend: Svelte
- Backend: Fastify
- Powered by:
user-agents— doing all the heavy lifting
The user-agents package is excellent, but it depends on Node.js and can’t be used directly in the browser. This API exposes it via a simple GET endpoint, so you can use it in:
- Browser extensions
- Frontend-only apps
- Any JS environment without Node support
Example request:
GET https://useragent.one/api/user-agents?deviceCategory=mobile&limit=1
View usage examples and filtering options at useragent.one