Open Source
Sigil
Encrypt your text and files right from your phone
This comes straight from Sigil’s own GitHub page — it’s free. Need help installing? →
What it looks like
About this app
Sigil brings a set of everyday cryptography tools to your phone in one clean, modern app. Encrypt and decrypt text messages, protect sensitive notes, and work with common cryptographic tasks, all through a simple Material 3 interface.
It's built for anyone who wants an easy way to keep private text private, without needing to understand the cryptography happening under the hood.
From the app’s home page
- See the codeHow it’s made — every line is public
- Questions & commentsTalk with the people who make it
- Report a problemTell the makers something is broken
- All versionsOlder downloads and what changed
- LicenseThe rules for using and sharing it
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