TempMail10min is an online service for creating free, disposable email addresses to receive verification codes, confirmation links, and other incoming messages without sharing a personal inbox. Addresses are generated instantly in a web browser, with no registration, password, app download, or browser extension required. The service is designed to help users reduce unwanted marketing messages and limit the connection between their personal identity and third-party websites.

Users can choose temporary inbox lifespans of 5, 10, 15, or 30 minutes, depending on how long they expect to need access. The inbox supports features including changing an address, selecting an alias or domain, viewing email history, refreshing or deleting messages, and opening the inbox through a QR code. The site states that messages and related information are held in volatile memory and automatically purged when the timer expires, with no disk storage or tracking logs. TempMail10min also provides guidance about using temporary email for OTP verification, delayed message delivery, software trials, and testing workflows.