QR CODE max char length

I've read that QRCODES has about 4,290 alphanumeric chars limit (about 4kb).

Is it true and is there any way to increase their memory size?

I would like to have more space on if possible: P

A summary of the specification is here:

  * http://en.wikipedia.org/wiki/QR_code

    Numeric only 	Max. 7,089 characters (0, 1, 2, 3, 4, 5, 6, 7, 8, 9)
    Alphanumeric 	Max. 4,296 characters (0–9, A–Z [upper-case only], space, $, %, *, +, -, ., /, :)
    Binary/byte 	Max. 2,953 characters (8-bit bytes) (23624 bits)
    Kanji/Kana 	Max. 1,817 characters

The specification itself is here:

• https://www.iso.org/standard/62021.html

As far as "more space", you should think of the QR code as a "link", or a "shortcut" to your URL. Clicking the QR code brings the user to web site; once they're there, you have as much space as you want.

QR codes come in various standardized sizes, but the largest is version 40 which can store about 2,953 bytes. 2953 character is the maximum that you can store within a single QR code

Mattkc has a video on youtube, where he stores the snake game within a QR code. It's quite awesome check it out.

https://mattkc.com/etc/snakeqr/