Picocrypt-NG
Picocrypt-NG is a free, open-source security app for Android. Paranoid, offline file encryption with XChaCha20 and Argon2id. It has 489 GitHub stars and is released under the GPL-3.0-only license, and you can install it from F-Droid.
github.com/Picocrypt-NG/Picocrypt-NG (opens in a new tab)
Data as of from the GitHub API and the F-Droid index; description from the project's repository or F-Droid listing. Report an error
About Picocrypt-NG
Picocrypt-NG encrypts files locally — a community-maintained continuation of Picocrypt. No accounts, no cloud, no telemetry, no network access (the app does not request the INTERNET permission). XChaCha20 for encryption, with the key derived from your password by Argon2id. Every volume is authenticated, so tampering or corruption is detected on decryption.
Privacy and F-Droid
F-Droid builds Picocrypt-NG from its published source code and flags anti-features such as ads, tracking or reliance on non-free services.
No anti-features flagged on the latest F-Droid build.
Screenshots
Screenshots from the app's F-Droid listing.
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Is Picocrypt-NG free and open source?
Yes. Picocrypt-NG's source code is public on GitHub under the GPL-3.0-only license, which is OSI-approved or FSF-free. F-Droid, which builds it from source, flags no anti-features such as ads or tracking on its latest build.
How do I install Picocrypt-NG?
You can install Picocrypt-NG from F-Droid (package io.github.picocrypt_ng.picocrypt_ng); the links are on this page. Its GitHub repository also publishes releases (latest: 2.18).
Is Picocrypt-NG still maintained?
The repository's most recent commit was on Oct 26, 2026. Its F-Droid listing was last updated on Jul 1, 2026. appsgit only lists apps whose repository had a commit in the last six months.