Create encrypted documents with Crypto Notepad, an open source text editor for Windows

Aug 19, 2020
Updated • Aug 20, 2020
Software, Windows software

Storing sensitive data in plain text documents is never a good idea. You never know what could happen if it falls in the wrong hands.

Create encrypted documents with Crypto Notepad, an open source text editor for Windows

Crypto Notepad is a text editor that can encrypt your documents, and protect them from unauthorized access.

The program is portable, and its executable is about 3.75MB in size. It creates a settings file in its parent folder. Crypto Notepad has a simple interface, that resembles Windows' default text editor for the most part, except it has a toolbar.

The program can save the documents in two formats: Plain Text File (TXT), and its own format CNP (Crypto Notepad). When you save a document,, the application prompts you to enter a password to secure the file.

Crypto Notepad encrypted documents

Each document that you create with Crypto Notepad can have a different password. Files that were encrypted using the program, cannot be read by other programs.

Here's what the document which I encrypted with the program looks like in Notepad++. It contains a string of random characters because it is encrypted. The length of the text reported by the program was also incorrect. Besides, the latter did not prompt me to enter the decryption password, so it's not possible to decode the contents of the document.

Crypto Notepad encrypted

I sent a document that was encrypted using Crypto Notepad along its password to a friend, and he was able to decrypt it with his copy of the program.

Crypto Notepad can be used as a document-viewer, if you toggle the "read-only" mode from the Edit menu. It also has options to enable Word Wrap, and clear the clipboard contents.

Crypto Notepad edit

Use the "Always On Top" option in the Tools menu to make Crypto Notepad's interface stay on top of other program windows.

Crypto Notepad tools

Crypto Notepad comes with a built-in password generator. It can generate random passwords that can contain capital and small letters, numbers, special characters, etc. You may choose the length of the password and the number of strings used for generating the password.

Crypto Notepad password generator

The Change Password option can be used to edit the document's password, you will of course need to enter the old passphrase when choosing a new one.

Stepping away from the computer? Hit the Lock option to prevent other users from viewing/editing the document, you will need to re-enter the password when you want to view the file. These options are also available on the toolbar, along with the basic file editing buttons.

Minimize Crypto Notepad to the tray, prevent multiple instances from opening, lock the file when minimizing, or set it to clear the clipboard when exiting the program, from the Settings > General tab. Though the program is portable, you may optionally set it to integrate with Explorer's context menu.

Crypto Notepad is quite customizable. The interface tab allows you to disable the main menu, icons, shortcut keys. You can set a custom color, font for the toolbar, search panel, status panel, etc. The Editor tab has options to set the primary font color, style, background color, etc.

Define the encryption algorithm to be used by the program: MD5, SHA1, SHA256, SHA384, SHA512, set the key size (128, 192, 256) and password iterations, from the Encryption tab.

Crypto Notepad is an open source software, The program can only open 1 document per instance, i.e. it does not support tabs. Similar applications are Hekapad and Criptext which we reviewed earlier.

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  1. Edwardo said on August 20, 2020 at 7:26 pm

    # MD5
    f1b9f28f960261ae75fdeed8170907c4 Crypto Notepad.exe

    # SHA1
    ad44331e30c9cec4eadbf027efac2d79ea08c02c Crypto Notepad.exe

    # SHA256
    43b3cb8ffceaff6bcb837baf8c29bab06d72a3774ae204a7cffb63c52c877785 Crypto Notepad.exe

    # CRC32
    50109d55 Crypto Notepad.exe

    # MD5

    # SHA1

    # SHA256

    # CRC32

    Where is the problem ? :-)

  2. Anonymous said on August 20, 2020 at 8:12 am

    Be careful i have download the zip , and the hashs for the file they give doesn’t match.
    For the version 1.6.7 , this is the hashs they give :
    CRC32: 50109D55
    MD5: F1B9F28F960261AE75FDEED8170907C4
    SHA-1: AD44331E30C9CEC4EADBF027EFAC2D79EA08C02C
    And none work for me ?

  3. typo said on August 19, 2020 at 11:33 pm

    Maybe a typo in the article “SH512”, perhaps should be “SHA512”?

  4. Joanie said on August 19, 2020 at 7:05 pm

    Snooze. vim and :x

  5. Gabriel said on August 19, 2020 at 5:58 pm

    This is what i used from years and years ago. Still works, not sure how secure it is at this point though. But it works well enough.

  6. User said on August 19, 2020 at 5:42 pm

    Thanks Ashwin. If you have some time, look at EncryptPad (
    Multiplatform (Win, Mac, Linux) and open source (

  7. VioletMoon said on August 19, 2020 at 5:18 pm

    Sounds like a perfectly good program; there is a portable program much like this.

    I use Encryto since it allows encryption/decryption of any file.

    Add Crypto-Notepad to the arsenal!


  8. MartinFan said on August 19, 2020 at 1:55 pm

    It’s nice that it comes with a pw generator, but I take it we still would have to remember the passphrase. (I hate trying to remember pw’s) Nice article, but I’m not sure I would need it since I don’t handle sensitive information.

  9. Logan said on August 19, 2020 at 11:49 am

    Would be useful, if Microsoft weren’t logging all your keystrokes:

    1. VioletMoon said on August 19, 2020 at 5:21 pm

      I like Zemana, but others exist:


  10. Sophie said on August 19, 2020 at 11:27 am

    Excellent Ashwin. I’ve tried a couple of other tools like this, but this is nicer than those in my view!

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