PrivateBin and PassLink are both zero-knowledge tools for sharing sensitive text securely. Both encrypt content in the browser before upload, ensuring the server never sees your data. But they differ significantly in hosting model, features, and target audience.
What is PrivateBin?
PrivateBin is an open-source, self-hosted pastebin that encrypts content using AES-256-GCM in the browser. It evolved from ZeroBin and has been actively maintained since 2015. It supports discussions, syntax highlighting, file attachments, and configurable expiration.
What is PassLink?
PassLink is a managed, zero-knowledge secret sharing tool that encrypts content using AES-128-GCM in the browser. It focuses on simplicity — no account required, no self-hosting needed, and a modern premium UI. It supports burn-after-reading, configurable view limits, password protection, and 5 languages.
Feature-by-feature comparison
| Feature | PrivateBin | PassLink |
|---|---|---|
| Encryption | AES-256-GCM | AES-128-GCM |
| Hosting | Self-hosted | Managed |
| Zero-knowledge | ✅ Yes | ✅ Yes |
| Account required | ❌ No | ❌ No |
| File attachments | ✅ Yes | ❌ No |
| View limits | Burn after reading | 1, 3, 5, unlimited |
| Languages | Community | 5 (EN, ES, PT, FR, IT) |
| UI | Utilitarian | Premium dark |
Hosting model
PrivateBin
PrivateBin must be self-hosted. You need a web server (Apache/Nginx), PHP 7.1+, and a storage backend (filesystem, MySQL, PostgreSQL, or S3). This gives you full control but requires maintenance.
PassLink
PassLink is a fully managed service. No infrastructure to set up or maintain. Create a secret link and share it immediately.
Encryption
PrivateBin
AES-256-GCM with PBKDF2 key derivation. The key is embedded in the URL fragment. Strong, battle-tested encryption.
PassLink
AES-128-GCM via the Web Crypto API. The key is embedded in the URL fragment. Fast, secure, and standards-compliant.
User interface
PrivateBin
Functional but utilitarian. Designed for technical users comfortable with paste-style interfaces. Supports syntax highlighting and Markdown.
PassLink
Modern, premium dark UI designed for non-technical users. Clean form-based interface with clear instructions.
Additional features
PrivateBin
Discussions (threaded comments on pastes), file attachments, syntax highlighting, QR code sharing, custom burn-after-reading settings.
PassLink
Configurable view limits (1, 3, 5, unlimited), password protection with client-side hashing, 5 languages (EN, ES, PT, FR, IT), inline CTA for quick sharing.
When to choose PrivateBin
Choose PrivateBin if you need full control over your infrastructure, want to self-host on your own servers, need file attachment support, or prefer AES-256 encryption. It is ideal for organizations with strict data residency requirements.
When to choose PassLink
Choose PassLink if you want a zero-setup experience, need to share secrets with non-technical clients or colleagues, value a modern UI, or need multi-language support. It is ideal for freelancers, agencies, and teams that need fast, frictionless sharing.
Domande frequenti
Is PrivateBin more secure than PassLink?
Both are zero-knowledge and encrypt data in the browser. PrivateBin uses AES-256 (vs PassLink AES-128), but both are considered secure for practical purposes. The main difference is hosting model, not encryption strength.
Can I use PrivateBin without self-hosting?
There are public PrivateBin instances, but you are trusting the operator. For guaranteed zero-knowledge security, self-host or use a managed zero-knowledge service like PassLink.
Which tool is better for sharing with clients?
PassLink is better for client-facing sharing because it requires no account, has a modern UI, and works in 5 languages. PrivateBin is better for internal team use where self-hosting is already set up.
Conclusione
PrivateBin and PassLink serve the same core purpose but with different tradeoffs. PrivateBin gives you infrastructure control at the cost of setup complexity. PassLink gives you instant, beautiful sharing at the cost of relying on a managed service. Both are excellent zero-knowledge tools.
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