5 Secret Codes for Kids to Write a Coded Letter

Oh how I loved secret codes when I was a kid.  The ability to write a coded letter without anyone but the recipient was just plain fun.

Today on Kids Activities Blog we have 5 secret codes for kids to write their own coded letter.

secret codes for kids to write a coded letter

5 Secret Codes for Kids

1.  Reverse the Words

types of code backwards

This is a simple code to solve – just read the words backwards!  Even though it seems simple once you know the secret, it can be a hard one to figure out when you don’t.

2.  Half-Reversed Alphabet

Write out the letters from A to M then write the letters from N to Z directly below them.


3.  Block Cipher

Write the message in a rectangular block, one row at a time (we used 5 letters in each row).  Then writes down the letters as they appear in the columns.

4.  Read Every Second Letter

code 2

Read every second letter starting at the first letter, and when you finish, start again on the letters you missed.

5.  PigPen

The PigPen code is easier than it looks and is my children’s favorite.  First, draw out the two grids below and fill in the letters:


Each letter is represented by the lines around it (or pigpen).


Write a Coded Letter

We practiced writing our names and silly words before moving to coding whole sentences.

The letters and messages you can write can be fun, but make sure you send along a key so the recipient can figure it all out!

Want More Writing Fun? We Have Plenty of Activities:


  1. Great ideas! I’ve never seen Pig Pen cypher before. I am pinning this post!

  2. oh, how much fun my secret spies will have with this this afternoon. knaht uoy! Lol.

  3. Oh my kids are going to LOVE this… so so so very much!!

  4. I loved secret codes when I was a kid! And then there are the “secret” languages such as Pig Latin and Ubbi-Dubbi! My own mother was an expert at speaking Pig Latin to Dad when my siblings and I were too young to understand it and she didn’t want us to know what she was saying!

  5. i made up my own secret code when I was little but these are some great suggestions to get kids interested.

  6. My son LOVES secret codes and I’ve found them to be a GREAT way to sneak in some word work. Thanks for sharing at the After School Linky Party. I’ll be featuring this post tomorrow. Stop by to check it out and share more great ideas from the quirky mommas!

  7. Oh, so many good memories from this!! PigPen was my favorite and number 4 is great too. Thanks so much for sharing it at the Less laundry, More Linking party.

  8. This is SOOO much fun, my boys will LOVE this!!
    On behalf of Lisa, Cindy & myself, thanks so much for sharing your links at our “Best Of The Weekend party”! I am pinning all to our party board and pinning this to another big board too.
    We hope to see you again when the party kicks off again Friday eve at 8PM EST.
    Have a great week!

  9. aha! i can imagine DD’s reaction to this.. a fun game for a long drive. thanks for sharing!
    -Reshama @ StackingBooks.com

  10. in number 4 there should be an s before the t on the bottom line

  11. Thank you for step by step tips very helpful. I love your blog.

  12. Jonathan Vander Woude says:

    AWSOME!!!!!!!!!!!!!!!!!!!!!!!! So great!!??

  13. Eliana Marcela Sanchez says:

    I absolutely love this advise for the month of fun activities. Too bad my son is all grown up and won’t enjoy any of these activities?. However he had a great childhood. ???

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