Paaster
End-to-end encrypted pastebin with history and expiring pastes
562 stars 24 forks last commit first released AGPL-3.0
Actively maintained
Last commit 9 Aug 2026.
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.
Categories:
Tags:
Tech Stack:
Similar to Paaster
Onetime Secret
Self-destructing service for sharing single-use encrypted secrets
Open-source web and API service to create encrypted, single-view links for sharing secrets with configurable expiry and optional passphrase protection.
Chibisafe
Self-hosted file vault and uploader with shareable links
Chibisafe is a fast, self-hosted file uploader and vault for files, photos, and documents with shareable links, albums, tagging, and API access.
Palmr.
Privacy-focused file sharing and transfer platform
Palmr. is an open-source file-sharing platform for uploading, organizing, and securely sharing files with custom links, passwords, and access control.
Enclosed
Minimal app for sharing end-to-end encrypted notes and files
Self-hostable, end-to-end encrypted note and file sharing with zero-knowledge storage, optional passwords, expiration (TTL), and delete-after-reading links.
PrivateBin
Zero-knowledge encrypted pastebin with browser-side AES encryption
PrivateBin is a minimalist zero-knowledge pastebin that encrypts and decrypts pastes in the browser, with optional passwords, expiration, discussions, and file uploads.
Transfer.zip
Self-hostable file sharing with stored and peer-to-peer transfers
Open-source, self-hostable file transfer service with resumable uploads, S3 or disk storage, transfer requests, and end-to-end encrypted WebRTC quick transfers.