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Send passwords, API keys, and sensitive data with links that work exactly once. Your message is encrypted in your browser — we never see it.
Client-side encrypted. We can't see your data.
Enter your password, API key, or sensitive text. Choose how long the link should stay active.
Your message is encrypted in your browser. The key is in the URL — our servers only see encrypted data.
Send the link. When opened, the message is displayed and immediately deleted. It can never be viewed again.
Stop leaving sensitive data in Slack, email, or text messages. Those records live forever — even after password changes.
Your data is encrypted before it leaves your browser using AES-256.
We never see your encryption key. It stays in the URL hash, which isn't sent to servers.
We use Redis GETDEL — reading and deleting happen in one atomic operation.
Simple, auditable code. No tracking, no accounts, no data collection.
See how others use PasteOnce to share sensitive information securely.
Yes. Your data is encrypted using AES encryption in your browser before it's sent to our servers. The encryption key is stored in the URL hash, which browsers never send to servers. We literally cannot read your messages.
The message is immediately and permanently deleted from our servers using an atomic operation (Redis GETDEL). Even if someone has the link, they cannot read it again.
Messages automatically expire after your chosen time period (1 hour to 7 days). Expired messages are permanently deleted and cannot be recovered.
No. PasteOnce is completely anonymous. No accounts, no tracking, no cookies. Just paste, share, and forget.
No. We use a zero-knowledge architecture. Your encryption key never touches our servers — it stays in the URL hash, which browsers don't send over the network.
Create your first self-destructing message in seconds. No signup required.
Create Secure Link