CAPSURA

encrypted ephemeral file transfer

drag file here or click to select
Link (copy this):

Create a mailbox. Send the link to someone. They upload a file into it. You download.

Deposit link (send to uploader):
Download link (for you):

N parties each submit a file. No one can see others' submissions until all are in.

Slot links (one per participant):

Upload a file. Ping a heartbeat to keep it locked. Stop pinging and it releases to your heir.

drag file here or click to select
SAVE THIS — you will not see it again:
Owner key (for heartbeat):
Heartbeat URL:
Heir download link:

Commit a claim now, reveal it later. Prove you knew X at time T.

drag file here or click to select
SAVE THESE — you will not see them again:
Reveal key (proves you're the depositor):
Receipt (proof of existence at time T):

        
Download link (for later reveal):