Free, no account, end-to-end encryptedRequest a secret →

Coming soon

Chrome and Edge extension

Right-click a selection or a password field: “Share once”. The link is ready without opening a tab.

Chrome or Edge 120 or later

Not published yet. Meanwhile, everything works in the browser, with nothing to install. Create a secret in the browser

Coming soon

Firefox extension

The same features as on Chrome, with minimal permissions and no global access to pages.

Firefox 128 or later

Not published yet. Meanwhile, everything works in the browser, with nothing to install. Create a secret in the browser

Coming soon

Windows

Ctrl+Shift+E shortcut: the clipboard becomes a link, then it is cleared after 30 seconds.

Windows 10 and 11, 64-bit

Not published yet. Meanwhile, everything works in the browser, with nothing to install. Create a secret in the browser

Coming soon

macOS

In the menu bar, with the same global shortcut and file drag and drop.

macOS 12 or later, Intel and Apple Silicon

Not published yet. Meanwhile, everything works in the browser, with nothing to install. Create a secret in the browser

Coming soon

Command line

eclair send and eclair get encrypt on your machine. JSON output for CI, MCP server for agents.

Node.js 22 or later (Windows, macOS, Linux)

Not published yet. Meanwhile, everything works in the browser, with nothing to install. Create a secret in the browser

Command line documentation

Coming soon

Android

Share once from the share sheet of any app.

Not published yet. Meanwhile, everything works in the browser, with nothing to install. Create a secret in the browser

Coming soon

iPhone and iPad

Share once from the share sheet, without copying the secret.

Not published yet. Meanwhile, everything works in the browser, with nothing to install. Create a secret in the browser

Verify a downloaded file

Compute the file's checksum on your machine and compare it, character by character, with the one shown here. If they differ, do not open it and let us know.

Windows (PowerShell)

Get-FileHash .\sesame-eclair-windows-setup-0.1.0.exe -Algorithm SHA256

macOS

shasum -a 256 sesame-eclair-macos-0.1.0.dmg

Linux

sha256sum eclair.mjs