One Time Secret Alternative for Secure Password Sharing
PassLink helps teams share passwords, API keys, and OTP codes with encrypted one-time links that burn after reading.
Why teams switch from traditional one-time secret tools
Traditional secret sharing tools like OneTimeSecret and PrivateBin were built when security tooling was scarce. They served a purpose, but modern teams need more: faster workflows, stronger encryption, and zero-setup experiences. PassLink was designed from the ground up to address these gaps.
- • No account required — PassLink is optimized for fast sharing flows. No signup, no email verification, no app install.
- • Client-side encryption — Secrets are encrypted in your browser using AES-128-GCM before upload. The server never sees plaintext.
- • Burn-after-reading — Links self-destruct after a single view or when the expiration timer runs out.
- • Password protection — Add a password gate for two-channel security (send the link via email, the password via phone).
- • Built for teams — Works well for onboarding credentials, temporary access, incident response handoffs, and client credential delivery.
How PassLink works in 3 steps
Share any secret — passwords, API keys, database credentials, or private notes — in under 10 seconds.
1. Paste your secret
Type or paste your password, API key, or confidential note into the encrypted form. Everything stays in your browser.
2. Get a one-time link
PassLink encrypts the data client-side and generates a unique URL. The decryption key lives only in the URL fragment.
3. Share and burn
Send the link via any channel. Once the recipient views it, the secret is permanently deleted. No trace remains.
PassLink vs OneTimeSecret vs PrivateBin vs Yopass
How PassLink compares to other popular one-time secret sharing tools in security, usability, and infrastructure requirements.
| Feature | PassLink | OneTimeSecret | PrivateBin | Yopass |
|---|---|---|---|---|
| No account required | ✅ Yes | ⚠️ Optional | ✅ Yes | ✅ Yes |
| Client-side encryption | ✅ AES-128-GCM | ❌ Server-side | ✅ AES-256-GCM | ✅ OpenPGP.js |
| Zero-knowledge | ✅ Yes | ❌ No | ✅ Yes | ✅ Yes |
| Self-hosting required | ❌ Managed | ❌ Managed | ✅ Required | ✅ Required |
| Password protection | ✅ Yes | ✅ Yes | ✅ Yes | ❌ No |
| Custom expiration | ✅ 1h / 24h / 7d | ✅ Up to 7 days | ✅ Configurable | ✅ Configurable |
| Modern UI/UX | ✅ Premium | ⚠️ Basic | ⚠️ Functional | ⚠️ Developer-focused |
Security architecture
PassLink implements a true zero-knowledge architecture. Here is what that means for your data.
🔐 End-to-end encryption
Your secret is encrypted in the browser using the Web Crypto API (AES-128-GCM) before any data leaves your device. The encryption key is derived from a random value embedded in the URL fragment, which is never sent to the server.
🗑️ Automatic destruction
Once the recipient opens the link and decrypts the secret, the encrypted blob is permanently deleted from the database. Even if the server were compromised, there is nothing to steal.
🚫 Zero server-side knowledge
The server only stores an encrypted blob it cannot decrypt. No logs of plaintext secrets, no decryption keys stored, no way for anyone (including us) to read your data.
⏱️ Time-based expiration
Secrets expire automatically after 1 hour, 24 hours, or 7 days, even if never viewed. This limits the window of exposure for shared credentials.
Common use cases
How teams and individuals use one-time secret links in their daily workflows.
Share passwords
Send login credentials to colleagues, clients, or contractors without leaving traces in email or chat history.
Share API keys
Transmit API keys and tokens to developers securely during onboarding or project handoffs.
Share SSH keys
Send SSH private keys to team members without pasting them in Slack or storing them in shared documents.
Share .env files
Share environment configuration files securely during project setup without committing secrets to repositories.
Share 2FA codes
Transmit recovery codes and one-time passcodes to teammates who need emergency access.
Share license keys
Deliver software license keys to customers or team members with automatic link expiration.
Create a one-time secret link
Related guides
- How to Generate a One-Time Link for Passwords and Secrets
- PassLink vs OneTimeSecret — Feature-by-Feature Comparison
- Best Open-Source Secret Sharing Tools Compared
- The Complete Guide to Secure Password Sharing
- Self-Destructing Messages Explained
- What Is Zero-Knowledge Encryption?
- Best OneTimeSecret Alternatives in 2026