Insert a Null Character (ASCII 00) in Notepad

Question

I want to insert a null character (ASCII Value 00) into an open file in Notepad. A program that is reading this file is expecting 00 at the end, but it's getting the ASCII value for space - 20.

How can I achieve this?

Answer 1

Normal text editors such as Notepad usually do not have the capability to enter NUL characters into files. What you probably want to do is to use a "hex editor" (some text editors also have a "hex" mode). This will let you enter NUL characters, or any other byte you might need.

Answer 2

Alt + 256 works for me. But thats just one at a time.

The plugin HEX-editor is easier if you want heaps of Nul's at a time.

Answer 3

With Notepad++

From HEX

1. Type 00 00 00
2. Select this text
3. TextFX > TextFX Convert > Convert Hex to text

From Base64

1. Type AA==
2. Select this text
3. Plugins > MIME Tools > Base64 Decode

The mapping is:

NUL -> AA=
NUL NUL -> AAA=
NUL NUL NUL -> AAAA

Answer 4

Yep open your text file in a hex editor and edit the hex instead of the text!

Answer 5

try new a file called a.txt, then open it with hex editor like ultraEdit, ctrl + H to enter hex editing mode, at that time, you will be fine with whatever byte you wanna insert.