PrivateBin

PrivateBin is a self‑hostable, open‑source pastebin that encrypts all content in the browser with 256‑bit AES‑GCM, so the server never sees plaintext. Users can create text, code, or markdown pastes, optionally protect them with a password, set expiration times (including “burn after reading”), and enable discussions with nicknames or identicons. The service also supports syntax‑highlighted code, file uploads with preview, and QR‑code links, all configurable through a simple file.

The design gives server administrators plausible deniability: because the server stores only ciphertext, it cannot be forced to reveal the content of pastes, and any paste can be deleted on demand. Administrators do not need to worry about illegal content being hosted, though they must secure the instance with HTTPS and preferably HSTS, DNSSEC, or DANE.

Optional features can be toggled in the configuration, including password protection, markdown rendering, language selection, and template styling. The project is released under the permissive Zlib license, is stable at version 2.0.3, and is intended for developers who need a lightweight, privacy‑preserving way to share text or code snippets.