The Kids Detective Journal is a free 11-page printable PDF for young detectives and puzzle solvers. It includes case file, clue cards, secret codes, fingerprint records and detective badges, in A4, US Letter and a hyperlinked digital version. Every page is undated, so you can start on any day and print as many copies as you need.

Spark curious minds with this kids detective journal. Includes case files, clue cards, secret codes, fingerprint records, detective badges and cases solved.

What's inside the kids detective journal

  • Case File
  • Clue Cards
  • Secret Codes
  • Fingerprint Records
  • Detective Badges
  • Cases Solved
  • Notes

See every page

All 11 pages of the US Letter version, exactly as they print. Tap a page to see it larger.

  • 1. Cover
  • 2. This Journal Belongs To
  • 3. Contents
  • 4. Case File
  • 5. Clue Cards
  • 6. Secret Codes
  • 7. Fingerprint Records
  • 8. Detective Badges
  • 9. Cases Solved
  • 10. Notes
  • 11. Thank you page

Who this kids detective journal is for

This journal is for young detectives who love mysteries, puzzles and secret codes. It suits children aged about six to twelve, kids who enjoy mystery books and games, and parents or teachers looking for a fun way to build reading, logic and observation skills. Solving pretend cases at home, at school or during a party encourages children to notice details, ask good questions and think carefully before jumping to conclusions.

How to use your kids detective journal

Open a new case on the case page, writing what happened, where and when. Record clues and suspects as you investigate. Crack and create messages using the secret code page. Take fingerprints with a pencil and tape on the prints page, and compare them. Make your own detective badge so you look official. When a mystery is cracked, record how you solved it on the solved page, and invent new cases for friends.

Formats included

A4 PDF

For printing in most of the world (210 × 297 mm).

US Letter PDF

For printing in the US and Canada (8.5 × 11 in).

Digital PDF

Hyperlinked tabs for tablets and PDF annotation apps.

Ready to start?

Free download

Kids Detective Journal questions

Are secret codes included?

Yes. Look for the "Secret Codes" page in the 11-page kids detective journal. Print the A4 or US Letter PDF as often as you need, or write in the digital version on a tablet. Every page is undated, so you can start any day and reprint a page whenever it fills up.

Can kids take fingerprints?

Yes. There is a prints page. Look for the "Fingerprint Records" page in the 11-page kids detective journal. Print the A4 or US Letter PDF as often as you need, or write in the digital version on a tablet. Every page is undated, so you can start any day and reprint a page whenever it fills up.

Is it good for parties?

Yes. Set up a mystery for guests to solve. Other pages in the 11-page kids detective journal include "Case File", "Clue Cards" and "Secret Codes", so related notes stay together. Every page is undated, so you can start any day and reprint a page whenever it fills up.

Is the Kids Detective Journal really free?

Yes, the Kids Detective Journal is completely free for personal use. Download the 11-page PDF without an account or email address, print it at home as often as you like and share the page link with friends. FolarraStudio is free to use. In the future, a few clearly labeled ads may help keep it free.

What size is the Kids Detective Journal?

The Kids Detective Journal comes in A4 (210 x 297 mm) and US Letter (8.5 x 11 inches), plus a hyperlinked digital PDF for tablets. Choose the file that matches the paper in your printer and print at Actual size or 100%, so nothing is cut off. Both paper sizes have the same 11 pages.