A vanishing note service supporting aes-gcm 256, custom passwords via pbkdf2, and one-time pads.
Cost / License
- Free
- Open Source
Platforms
- Online




OnlyU is described as 'Free, secure platform for sending self-destructing messages and passwords. No signup is required, and all messages are end-to-end encrypted by default. Once read, messages are permanently deleted' and is an website in the security & privacy category. There are more than 10 alternatives to OnlyU, not only websites but also apps for a variety of platforms, including SaaS, Self-Hosted, Chrome OS and Heroku apps. The best OnlyU alternative is vanish.so, which is both free and Open Source. Other great sites and apps similar to OnlyU are Retriever, One-Time Secret, Privnote and Yopass.
A vanishing note service supporting aes-gcm 256, custom passwords via pbkdf2, and one-time pads.




Retreiver lets you request secrets from anyone without any of the data going to a server.

Keep sensitive information out of your chat logs and email. Share a secret link that is available only one time.

Share a confidential note via a web link that will self-destruct after it is read by your intended recipient

Yopass is a project for sharing secrets in a quick and secure manner*. The sole purpose of Yopass is to minimize the amount of passwords floating around in ticket management systems, Slack messages and emails.




Scrt.link lets you share sensitive information online. Keep confidential information out of email, Slack, Teams, Whatsapp or any other communication channel. A one-time disposable link guarantees your secrets can only ever be accessed once - before being destroyed forever.


PasswordPusher is an opensource application to securely communicate passwords over the web. Links to passwords automatically expire after a certain number of views and/or time has passed.




VaultNote is a modern, privacy-focused tool for sharing sensitive data like passwords and API keys. Unlike traditional services, all encryption (AES-256) happens directly in the user's browser (Client-Side Encryption) before any data leaves the device.
Collect client credentials securely, use them when needed, then make them disappear. Zero-knowledge encryption, full audit trails. A password manager for secrets that aren't yours.




Securely send and receive sensitive information using one-time links. Secrets are always encrypted and decrypted client-side and cannot be seen by the service. Also has features like notifications, webhooks, branding, API.
