Paaster
Secure pastebin with end-to-end encryption, paste history, and no dynamic third-party dependencies.
Smart Download
Visit Project Homepage
No installer available yet — head to the source repository
A privacy-focused pastebin with end-to-end encryption and zero dynamic third-party dependencies.
Core Features
- End-to-end encryption (E2EE) – secret never leaves browser
- Paste history stored in IndexedDB
- File drag & drop support
- QR code sharing
- Theme switch (light/dark)
What It Can't Do
- •Only use self-hosted or trusted instances – anyone could modify the code to leak keys. 2. Client secrets in IndexedDB are vulnerable to malicious browser extensions. 3. Deployment requires S3-compatible storage and MongoDB, increasing setup complexity.
Use Cases
- Share sensitive code or config temporarily
- Collaborate on text securely without registration
- Embed code examples in articles with controlled access
Detailed Introduction
Paaster is a privacy-first pastebin application that allows users to share code, text, or files with end-to-end encryption. All encryption happens locally in the browser, ensuring the server never sees your secret key. Features include paste history, file drag-and-drop, themes, QR code sharing, shortcuts, and automatic/manual language detection. It uses libsodium for encryption and has no dynamically loaded third-party dependencies, reducing supply chain attack risks. Deployment requires S3-compatible storage and MongoDB. The project also provides a CLI tool and i18n support.
Tags
Getting Started
Download installer
Click the button above to download the installer for your system
Install the software
Double-click the downloaded installer and follow the prompts
Option A (use official online service): Visit https://paaster.io and paste text – encryption happens automatically.
Option B (self-host): Deploy with Docker Compose (Paaster + MongoDB + MinIO) using provided configuration.
Share the generated link; the encryption key is in the URI fragment (never sent to server).
- Option A (use official online service): Visit https://paaster.io and paste text – encryption happens automatically.
- Option B (self-host): Deploy with Docker Compose (Paaster + MongoDB + MinIO) using provided configuration.
- Share the generated link; the encryption key is in the URI fragment (never sent to server).
Checksum not available
This project has not published a SHA-256 checksum on its GitHub Release page
SHA256 Checksum
No checksum available
Download directly from GitHub Releases and verify file integrity yourself
All SHA-256 checksums on this platform are extracted from the project's official GitHub Release page, without any modification. You can independently verify them on the GitHub Releases page.
Open Source Transparency
View GitHub SourceUninstall Info
Self-hosted: Stop and remove containers with data volumes (`docker-compose down -v`). Delete local data directories and MinIO buckets.
No Extra Dependencies
Ready to use after download. No additional runtime required.
Similar Projects
uBlock Origin
uBlock Origin is a wide-spectrum content blocker for Chromium and Firefox that is CPU and memory efficient. Blocks ads, trackers, miners, and malware out of the box.
Umami
Umami is a simple, fast, privacy-focused web analytics tool that gives you full control over your data.
AdGuardHome
Network-wide DNS server that blocks ads and trackers across all home devices without needing client software.