Install¶
Pick your operating system:
- Linux (
.deb) for Debian, Ubuntu, Linux Mint, and derivatives - Windows (
.msi) for Windows 10 (1909+) and 11 - macOS for Apple Silicon and Intel, macOS 12+
All builds are published as assets on the Releases page. Always download from the official Releases page (or the linked mirrors), never from a third-party site.
GnuPG is bundled inside every build, so there is nothing else to install on any platform.
Prefer a printable / shareable version?¶
Download the install slides (PDF)
A 13-slide walkthrough you can email to colleagues, print, or hand to non-technical recipients. Includes block diagrams of the key-pair concept, the send flow, the receive flow, and where Seal saves your files.
Verifying downloads¶
Each release includes SHA-256 checksums next to the installer. You do not have to verify, but it is the easiest way to confirm your download is byte-for-byte identical to what was published.
Linux / macOS:
Windows PowerShell:
Compare the printed value to the one on the Releases page. They should match exactly.
After install¶
The first time you launch Seal, the First-time setup wizard runs automatically and generates your key. See the Quick start for what to expect step by step, then Using Seal for a tour of every tab.