Mountain Duck | Indie App Catalog

Mountain Duck

Mount remote storage as a disk

David Kocher

Screenshots

Description

Mountain Duck lets you mount server and cloud storage as a disk on your desktop. With Smart Synchronization, files are synchronized to the local disk when opened to allow offline usage and changes are uploaded in the background as soon as a connection is available. Open remote files with any application and work like on a local volume. Transfer files using Finder to remote servers, fast. Select files and folders to always keep offline on your computer. Other files are downloaded and cached on demand only and otherwise do not take space on your local disk. Encryption for data at rest using Cryptomator interoperable vaults prevent unauthorized access regardless of the server or cloud storage infrastructure. Based on the solid open source foundation of Cyberduck, all major protocols are supported to connect to just about any server you want. Including FTP, SFTP, WebDAV, Azure Cloud Storage, Amazon S3, Google Cloud Storage, Google Drive, Dropbox, Backblaze B2 & OpenStack Swift.

Release Notes

• “Integrated” connect mode using File Provider API (macOS) • Allow to search contents with Spotlight • SMB (Server Message Block) protocol support (#5368) • Custom versioning support to save previous file versions when overwriting (FTP, SFTP, WebDAV, OpenStack Swift) • Allows to restore previous file versions in Info → Versions (FTP, SFTP, WebDAV, OpenStack Swift) • Option to overwrite or rename file on sync conflict • Activity window for monitoring of background tasks • Resume pending large file uploads (S3, OpenStack Swift, Backblaze B2, ownCloud) (#15619) • New application icon • Dark and tinted application icon variants (macOS) • New status bar icon (macOS) • Support for Liquid Glass (macOS) (#17459= • Norwegian (Norsk) Localization • Rewrite protocol implementation (Azure) (#15967) • Connect with Multi-Bucket Application Keys that grant access to a specific group of buckets within an account, including the option to limit access based on a single file prefix (B2) (#17139) • Connect with connection profile obtaining temporary credentials from AWS Security Token Service (STS) by assuming role with optional Multi-Factor Authentication (MFA) input (S3) (#17437) • Connect with connection profile obtaining temporary credentials from AWS Security Token Service (STS) by getting session token with optional Multi-Factor Authentication (MFA) input (S3) (#17506) • Prompt when extensions are not running (macOS) • Missing custom icon for connections in sidebar of Finder (macOS) • Fix race conditions in FTP socket closure that cause intermittent errors (FTP) • Default to read identity agent location from SSH_AUTH_SOCK environment variable with no custom configuration (SFTP)

November 26, 2025 • v5.1.0All release notes

App Details

Size	172.2 MB
Initial release	January 29, 2016
Price
Platforms	Mac
Languages	Arabic, Bulgarian, Catalan, Croatian, Czech, Danish, Dutch, English, and 29 more
Category	Productivity
Website	mountainduck.io

Compatibility
Mac	Requires macOS 13.0 or later.

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Cyberduck

FTP & cloud storage browser

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App's data is regularly updated.
Last update: December 20, 2025