Best Encrypted Communication Products in 2025

One-Time Secret is a way to share sensitive information simple and secure.

Open Source

Share sensitive information encrypted and safe

free

Securely send and receive secrets using a one-time link. The secret is encrypted and decrypted in the browser using an encryption key only known by the user. Has features like notifications, teams, API. Trusted by IT teams all around the world.

freemium €9.0 / Monthly

Go Ahead. Email Another Password.

Open Source free

If you need to send a password or some other form of simple but sensitive information to someone...

Securely share sensitive information online

Stay private with anonymous email & phone masking. Prevent spam, stop trackers, and shield your real email from data breaches. Use our secure relay to sign up anywhere safely - create your own customized relays.

Keep your email safe from hackers & trackers...

Open Source

A simple, self-hosted pastebin service that uses Tor (.onion) ephemeral links to share encrypted messages and files that are destroyed after they are viewed.

Self-Destructive Notes.

Fully decentralised and encrypted solution system using the blockchain

Chat with everyone securely and privately, protect your digital files, & own your digital identity with an all-in-one app.

freemium

Duckist.com makes it easy to share passwords and other secret messages and files.