paaster

Paaster is a secure and user-friendly pastebin application that prioritizes privacy and simplicity. With end-to-end encryption and paste history, Paaster ensures that your pasted code remains confidential and accessible.

🚀 Overview

Paaster is a modern pastebin service designed with privacy at its core. Unlike traditional pastebins where servers store plaintext content that can be accessed by admins or breached, Paaster encrypts all pastes end-to-end directly in your browser using libsodium. The server only receives ciphertext, ensuring zero-trust security.

It solves the problem of insecure code and text sharing by providing a simple, efficient tool for developers and users who need to share sensitive snippets without compromising privacy. Features like paste history make it practical for repeated use.

Built for anyone prioritizing data confidentiality, especially developers sharing code. The creator developed it to deliver a straightforward, secure alternative to mainstream paste services.

✨ Key Features

End-to-end encryption (what it does: encrypts locally in browser with secret never sent to server; why: ensures server can't read content)
Paste history (tracks and accesses previous pastes securely)
File drag & drop, keyboard shortcuts, themes, QR code sharing
Self-destruct options: delete after view or specific time
Optional: CLI tool (https://github.com/WardPearce/paaster-cli), i18n support, automatic language detection

🛠 Tech Stack

Frontend: Svelte, TypeScript, CSS, JavaScript, HTML
Backend: SvelteKit (inferred from stack), Node.js implied
Database: MongoDB
Auth: None (E2EE, no accounts)
Hosting: Docker, self-hosted with S3-compatible storage (AWS S3, Cloudflare R2, MinIO, etc.)

👥 Who Is This For?

This project is useful for:

Developers who want to ___share code snippets securely without server access
Teams looking for ___a privacy-focused, self-hostable pastebin
Indie makers building ___custom tools or needing quick secure sharing

📸 Screenshots / Demo

Live demo: https://paaster.io
GitHub: https://github.com/WardPearce/paaster

🔥 Project Status

🟢 Actively building

Last updated: 2026-03-24

❓ FAQ

Is this project free?

Yes / Open Source (Free to use, self-host, AGPL-3.0 license.)

Is the source code available?

Yes — https://github.com/WardPearce/paaster

Can I contribute?

Open issues for feature requests (one per issue), submit PRs, help with translations via https://fink.inlang.com/github.com/WardPearce/paaster, report security issues.