Share & Seal · end-to-end encrypted on the Internet Computer
Write something
nobody can read
until you say so.
A capsule is sealed in your browser before it leaves it. capsl stores the ciphertext and opens nothing before the moment you set.
Free starter credits · No card required · Yours forever
HOW IT WORKS
Share & Seal.
01 — SHARE
Share.
Write anything — a letter, a prediction, a voice note, a photo. Pick who gets to see it: just you, a friend, or the whole feed. Up to 50,000 characters plus attachments.
02 — SEAL
Seal.
Pick a future date. Sign once. The capsule is encrypted, timestamped, and locked on-chain until that moment arrives — not ten seconds early, not ever by anyone else.
USE CASES
People use capsl to mark time.
Letters to your future self
A note from you, now, to you, later. Set it for your next birthday. Or the one after that.
Predictions to prove
Publish a call and let the world watch it unlock. Your receipts, timestamped.
Time-locked gifts
A voice note for her 18th birthday. A song for your anniversary. Messages that land at exactly the right moment.
THE FEED
Your capsules have an audience.
Public capsules show up in a live feed. People watch them tick down. React when they unlock. Reply to the reveal. The more you share and seal, the higher your reputation climbs.
◉
Watch
Follow a capsule and get pinged the moment it unlocks.
✦
React
Reactions on the reveal, threaded replies on what came out. Your taste becomes your reputation.
◈
Climb
Every seal, watcher, and reaction feeds your score. Rank up and unlock shells, badges, and privileges.
Share &
Seal.
Seal.
Starter credits are on us. Your first capsule opens whenever you say so.
Free starter credits · No card required