SheepDrop 1.4

SheepDrop now updates itself: it checks for a new version when it opens and once a day, and installs it with one click.

• In-app updates: automatic, or SheepDrop ▸ Check for Updates… to check right away. Release notes are behind Details…
• Signed updates: every update is verified against SheepDrop's own signing key before anything is unpacked; one that does not verify is never installed

This version has to be installed by hand once; from here on, SheepDrop updates itself.

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Unsigned build — first launch: right-click the app and choose Open, or allow it in
System Settings › Privacy & Security. Download SheepDrop-1.4.zip, unzip, and drag SheepDrop.app
into Applications. Requires macOS 26.4 or later, Apple Silicon.

SheepDrop 1.3

• SSH is now SheepDrop's own implementation on Apple's crypto — no bundled OpenSSL or libssh.
• Security fixes for the built-in servers: nothing is served before login, the served folder can't be escaped through symlinks, and failed logins and connection floods are limited. Updating is strongly recommended if you use the SFTP/SCP server.
• Much faster SFTP transfers — large firmware images move at full link speed.
• Cancel a running transfer from the transfer bar; an interrupted download never leaves a partial file.
• A cleaner, easier-to-read interface: larger text, simpler layout, and each action in one obvious place.
• Many reliability fixes: empty files, dropped connections, SCP to Unix hosts, FTP servers, and more.

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Unsigned build — first launch: right-click the app and choose Open, or allow it in
System Settings › Privacy & Security. Download SheepDrop-1.3.zip, unzip, and drag SheepDrop.app
into Applications. Requires macOS 26.4 or later, Apple Silicon.

SheepDrop 1.2

• New Liquid Glass look for macOS 26/27: a see-through glass window, glass toolbar controls, cards and buttons
• The window buttons now sit cleanly inside the sidebar
• New icon on the Serve screen
• Turning a server Off now also disconnects devices that are already logged in
• Servers keep their standard ports (69 / 22 / 21) when restarted, e.g. after changing the served folder
• Interrupted uploads from a device no longer damage the existing file on the Mac
• FTP connections can no longer hang on an unresponsive or NAT'd server
• Sidebar groups can be renamed, reordered and deleted from their menu; the connected dot updates live

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Unsigned build — first launch: right-click the app and choose Open, or allow it in
System Settings › Privacy & Security. Download SheepDrop-1.2.zip, unzip, and drag SheepDrop.app
into Applications. Requires macOS 26.4 or later, Apple Silicon.

Bundled libraries: libssh 0.12.2,openssl@3 3.6.3

SheepDrop 1.1

• Safer downloads — a file is only replaced once the new copy has fully arrived. A refused or interrupted download no longer wipes the existing file on your Mac or leaves a half-written firmware image behind.
• Built-in FTP server can no longer be told to delete the shared folder or overwrite a folder; deletes and uploads are limited to files.
• Built-in SFTP / SCP server is more robust: fixed a memory-safety bug when a session closes, and oversized read requests no longer crash the app.
• Built-in TFTP server: sessions no longer hang when a device goes quiet after option negotiation, duplicate acknowledgements no longer cause resent blocks, and very large images stay correct past the block-number wraparound.
• Stricter host-key check — if a server suddenly presents a different type of host key than the one you trusted, SheepDrop now refuses and explains why, instead of silently accepting it.
• Connections are no longer dropped just because a file name contains words like "timeout" or the digits "421".
• Your saved host list is protected: if it can't be read (for example after a downgrade), it is set aside rather than overwritten.
• Includes the refreshed app icon and the stability fixes made since 1.0.

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Unsigned build — first launch: right-click the app and choose Open, or allow it in
System Settings › Privacy & Security. Download SheepDrop-1.1.zip, unzip, and drag SheepDrop.app
into Applications. Requires macOS 26.4 or later, Apple Silicon.

Bundled libraries: libssh 0.12.2,openssl@3 3.6.3

SheepDrop 1.0

SheepDrop 1.0 — first release 🐑

A native macOS SFTP / SCP / FTP / TFTP file-transfer app for network engineers: a dual-pane client, and a built-in server a switch can pull from (or back up to) with its own copy scp: / copy tftp: command.

Install

Download SheepDrop-1.0.zip, unzip, and drag SheepDrop.app into Applications.

The build is unsigned (not notarized), so macOS warns on first launch — right-click the app and choose Open, or run:
xattr -dr com.apple.quarantine /Applications/SheepDrop.app

Requires macOS 26 (Tahoe) or later, Apple Silicon.

Highlights

• SFTP / SCP dual-pane browsing — SCP browses like WinSCP when the device serves the subsystem
• Built-in TFTP / SFTP-SCP / FTP servers so a device can pull or push files from your Mac — no separate TFTP daemon
• Modern-first, legacy-fallback SSH so old Cisco / Aruba / HPE gear still connects (RSA + ed25519 host keys)
• Live transfer progress + request log; passwords stored only in the macOS Keychain