Yes. All the letter papers, writing and PNG download are free.

What does my friend see?

A bottle on the sea. They tap to uncork it and read the first line. Join Sea Pals to receive the full letter; the sender needs to join too.

Can I put a link in it?

No. Links, social handles and phone numbers cannot go in a sealed letter. The words pass through the server’s rules filter when you seal it.

Can I save a letter without sending it?

Yes. Download letter saves a PNG image. You can keep or print that image yourself.

Is my letter uploaded?

Sealing a bottle sends the letter, signature and selected paper to the server to make the link, so keep that link private.

Free letter paper: write a letter online

Write a letter online on free seasonal letter paper, then download a PNG or seal it in a bottle to share by link. Writing and downloading need no account; sending the sealed letter in Sea Pals needs both people to join. If the recipient accepts, you can keep talking in Chats.

Free letter paper · no app needed

Choose plain or seasonal letter paper

Plain

Spring · plum blossom

Summer · the shore

Autumn · maple

Winter · camellia

Questions

Is it free?: Yes. All the letter papers, writing and PNG download are free.
What does my friend see?: A bottle on the sea. They tap to uncork it and read the first line. Join Sea Pals to receive the full letter; the sender needs to join too.
Can I put a link in it?: No. Links, social handles and phone numbers cannot go in a sealed letter. The words pass through the server’s rules filter when you seal it.
Can I save a letter without sending it?: Yes. Download letter saves a PNG image. You can keep or print that image yourself.
Is my letter uploaded?: Sealing a bottle sends the letter, signature and selected paper to the server to make the link, so keep that link private.

Updated 12 October 2026