Paaster

Paaster is a privacy-focused pastebin designed for sharing code and text securely. Pasts are encrypted in the browser using a secret that is never sent to the server, keeping the server unable to read content while still enabling sharing via links.

Key Features

• Browser-side end-to-end encryption for paste content
• Paste history stored client-side (IndexedDB) for quick access to previous pastes
• Expiration options, including delete-after-view and time-based deletion
• File drag-and-drop uploads alongside text pastes
• Share options such as QR codes and keyboard shortcuts
• Theme support, i18n, and automatic/manual language detection
• Designed to avoid dynamically loaded third-party dependencies to reduce supply-chain risk

Use Cases

• Share sensitive code snippets or logs with collaborators without exposing plaintext to the server
• Provide temporary one-time secrets or snippets using delete-after-view
• Host an internal paste service for teams that want simple, privacy-centric sharing

Limitations and Considerations

• Stored client secrets (for history and managing pastes) rely on browser storage, and trust depends on the integrity of the built frontend
• Requires object storage compatible with the S3 API for paste storage

Paaster is a strong fit for users who want a straightforward pastebin with encryption always enabled and a small, usability-oriented feature set. It pairs well with typical reverse-proxy setups and common S3-compatible storage providers for flexible deployments.