paaster

It provides a web‑based pastebin where each snippet is encrypted in the browser before it ever reaches the server, using a secret that never leaves the client. The service stores the encrypted payload in an object‑storage backend (compatible with S3, MinIO, or other providers) and can keep a history of pastes, optionally deleting them after a view or a set time. Users can upload files via drag‑and‑drop, share links through QR codes, and benefit from automatic or manual language detection and theme selection.

The application is designed for developers who need a simple, privacy‑focused way to share code or text without relying on third‑party services. It includes a command‑line client, keyboard shortcuts, and internationalization support, while avoiding dynamically loaded external dependencies to reduce attack surface. Supply‑chain safety is addressed with a locked package file and tooling that flags vulnerable modules.

Paaster can be run as a self‑hosted service using Docker Compose, requiring a MongoDB instance for metadata and an S3‑compatible bucket for storage. It is released under AGPL‑3.0, free of subscription, and intended for stable, production‑grade deployments.