Before tape and sticky envelopes, there was the art of folding a letter so it carried itself. This square letter fold is the tidy, grown-up version: write your note on a normal sheet of paper, then crease it into a small sealed square that stays shut all on its own.

No glue, no envelope, no fuss — just seven folds and a satisfying little tuck at the end. It's the perfect way to make a humble note feel like a tiny gift. Grab a sheet and let's fold one.

Do you write notes or letters? Next time, fold it up into this origami square letter fold! It’s easy, fun, and a nice surprise for the person who opens it.

STEP 1. Start with a sheet of printer paper — A4 (210 × 297 mm) or US Letter (8.5 × 11 in).

Fold it in half along the horizontal axis, bringing the top half down to meet the bottom half.

STEP 2. Fold about 1/2 inch (~13 mm) down from the top edge of the paper.

STEP 3. Flip the paper over. Fold it in half along the vertical axis, crease well, then unfold.

STEP 4. Fold both the top-right and top-left corners inward so they meet at the center.

STEP 5. Now fold the bottom edge upward.

STEP 6. Flip the paper over. Fold both the left and right tips at an angle.

STEP 7. Almost done! Fold both bottom corners (right and left) toward the center, then tuck them into the triangular pocket at the top.

Your origami square letter fold is complete! A sheet of paper becomes a neat ~3-inch (≈77 mm) square that holds together on its own — compact and sturdy.