About This Launch
SEAL encrypts files in the browser before upload and shares them through expiring links. The basic web flow requires no account or email. Senders can add password protection, single-use access, and revoke access. Revocation cannot undo a copy already downloaded. The free web tier supports 1 GB in total per seal, with expiry up to 7 days. Developers can also use SEAL through its CLI, SDK, and MCP server. The current npm package for the MCP server is sealnet-mcp.
Why I Built This
I wanted secure file sharing to feel as simple as dropping a file and getting a link, without forcing the sender or recipient into another account-based portal.
Launch Details
CategorySaaS
StageLive
ListedSeptember 24, 2026