vnsh is a Chrome add-on designed for secure, ephemeral file sharing. It allows users to encrypt and share text, images, and logs through self-destructing URLs that expire after 24 hours. The tool employs AES-256-CBC encryption, ensuring that the server never accesses user data, thus maintaining privacy and confidentiality. Features include right-click sharing for text and images, screenshot capture, and a debug bundle that compiles page context into a single encrypted link.

The program operates on a zero-knowledge architecture, meaning that all encryption occurs locally within the browser. This approach guarantees that the server only stores encrypted data, rendering it incapable of decrypting or interpreting the content. vnsh also offers a snippet collector for local storage of text and a history feature to track shared links with expiry countdowns. It is free to use, requires no sign-up, and is open-source.