Idlen is a free browser extension designed for Chrome that allows users to earn money while waiting for responses from AI assistants. By displaying relevant developer-focused ads during these waiting moments, users can turn idle time into real earnings. The extension supports various AI platforms such as ChatGPT and Claude, ensuring a wide range of users can benefit from its features. With detailed statistics and real-time earnings tracking, Idlen provides a comprehensive dashboard for managing earnings and payouts.

The ads come in two formats: a full-screen skippable overlay and a small toast notification, which ensures a non-intrusive experience. Privacy is a priority, as the extension does not track browsing data or read user prompts. Users can fully customize their experience by selecting ad formats and frequency, making it an adaptable tool for those who frequently use AI assistants.