CrNote secured data and notes

CrNote secured data and notes

100 - 500 downloads

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Source code (GPLv2) available at

General purpose encrypted note-taking, wallet and data storage app.

* 256-bit AES encryption
* Fully compatible with OpenSSL (aes-256-cbc) encryption engine
* UTF-8 Unicode support
* Individual files with individual passwords
* Password and Pattern based encryption options
* Tools to encrypt/decrypt files
* Embed files into a CrNote file
* Insert photos from camera directly
* Secure configuration
* Secure storage mode double encrypts files stored on SDCard
* Multiple backups
* Random text/hex/base64/number generator
* Wallet-style (CrNote) format or flat-text notes. Useful for:
** Storing passwords, files and photos
** On-the-go journalists and authors who want to write pieces of work securely
** General notes that need to be secured
* Raw file encrypt/decrypt tools
* Search functionality
* Optional online syncing with open API
* Planned: embedded file launchers, insert video/audio captures.

This version works from Android 2.1 onwards.

Your passwords are never stored anywhere, so don't forget them!

* Google cloud backup of configuration (only the device key - everything else is encrypted locally).
* Access to if you purchase online syncing to our services for secure storage of your files. Alternatively you can specify your own server which supports the CrNote Web API.
*** If you prefer no-network capability, download "CrNote X" which is a pure offline version of CrNote.

SDCard read/write permission:
* only used to access /sdcard/crnote for the storage of your files.


We're adding more features by the day. Visit for details, instructions and support.

Tags: crnote, secured note, openssl encypt aes, openssl aes decryption in, need to decrypt files from notes, note taking javascript encrypt, crnote secure, openssl file encryption.

Recently changed in this version

Fixed file encrypt tool

Comments and ratings for CrNote secured data and notes
  • (69 stars)

    by Chris Bradley on 25/05/2014

    Which is good cos you can read the files on your laptop too. User interface is a bit clunky