Cyberduck

What Cyberduck does

Cyberduck is a libre (free and open-source) server and cloud storage browser for macOS and Windows, originally created by David Kocher in 2002 and maintained since 2016 by Swiss company iterate GmbH. The application, built on Java with deep native OS X and Windows integration, supports FTP, SFTP, WebDAV, SMB, and a broad catalog of cloud storage providers (Amazon S3, Google Cloud Storage, Microsoft Azure, OpenStack Swift, Backblaze B2, Dropbox, Google Drive, OneDrive/SharePoint, Box, Nextcloud, ownCloud, Wasabi, DRACOON, Files.com, Spectra BlackPearl, iRODS) plus CDN distribution via Amazon CloudFront and Akamai. A companion product, Mountain Duck (also from iterate GmbH), shares the bookmark system and mounts remote storage as a local disk on Mac and Windows; Cyberduck CLI extends the same protocol coverage to Linux, macOS, and Windows command-line environments.

The product family is distributed through the official website (direct download), Mac App Store, and Windows App Store, with a community forum, GitHub repository (iterate-ch), newsletter, and Mastodon presence supporting organic discovery. The software is licensed under GPL, monetized primarily through optional donations and one-time App Store sales (pricing not publicly disclosed), with no funding rounds, no disclosed revenue, and a 1-10 employee headcount. Primary customer segments are individual users, developers, and system administrators needing a trustworthy, ad-free, bundle-free file-transfer client, with secondary reach into SMB and enterprise users requiring multi-protocol coverage, secure credential storage (Keychain), strong ciphers, and TLS mutual authentication.

Name

Cyberduck

Legal name

iterate GmbH

Website

https://cyberduck.io

Company type

Private

Founded year

2002

Operating status

Operating

Headcount range

1–10 employees

Short description

Cyberduck is a free, open-source (GPL) desktop file-transfer and cloud-storage browser for macOS and Windows, supporting FTP, SFTP, WebDAV, SMB, and 15+ cloud providers, serving individual users, developers, sysadmins, and SMB/enterprise customers via direct download and App Store distribution.

Ownership category

akta.pro rank

Headquarters

HQ city

Port Allen

HQ country

United States

HQ region

North America

Markets served

GTM type

B2C

Offering type

Software

Cost components

Personnel, Technology or R&D, Infrastructure, Operations

Revenue model

1. App Store Sales: Revenue generated from sales through Mac App Store and Windows App Store platforms where users can purchase or download the application.
2. Direct Downloads: Free downloads available directly from the website with optional donations to support development.
3. Donations: Voluntary donations from users who wish to support the open-source project's continued development.

Pricing tiers

Go-to-market motion1 record

Distribution channels5 records

Marketing channels6 records

Core offering

Cyberduck is a libre (free, open-source) server and cloud storage browser for macOS and Windows that connects users to FTP, SFTP, WebDAV, SMB servers, and major cloud storage providers including Amazon S3, Google Cloud Storage, Microsoft Azure, OpenStack Swift, Backblaze B2, Google Drive, Dropbox, OneDrive, Nextcloud, ownCloud, Box, Wasabi, DRACOON, Files.com, Spectra BlackPearl, and iRODS. The product is distributed under the GPL license with optional paid versions through the Mac App Store and Windows App Store, and integrates Cryptomator for client-side encryption and Amazon CloudFront/Akamai for CDN distribution. The Cyberduck family also includes the Mountain Duck companion (mounts remote storage as local disks) and the Cyberduck CLI (command-line interface for Linux, macOS, and Windows).

Product overview

Cyberduck is a libre (free and open-source) server and cloud storage browser application available for Mac and Windows. The product family consists of Cyberduck (the core desktop client), Mountain Duck (a companion application that mounts remote storage as local disks), and Cyberduck CLI (a command-line interface). Cyberduck connects to servers via FTP, SFTP, WebDAV, and SMB protocols, and integrates with major cloud storage providers including Amazon S3, Google Cloud Storage, Microsoft Azure, OpenStack Swift, Backblaze B2, Google Drive, Dropbox, OneDrive, Nextcloud, ownCloud, Box, Wasabi, DRACOON, Files.com, Spectra BlackPearl, and iRODS. The application also integrates with Cryptomator for client-side encryption and supports CDN integration via Amazon CloudFront and Akamai. Cyberduck is licensed under the GPL and the source code is available on GitHub.

Differentiator

Problem solved

Functional benefit

Brands

• Cyberduck CLI: Command line interface for accessing remote servers on Linux, macOS and Windows
• Mountain Duck

Products and services

• Cyberduck

Quantifiable outcome

• Free alternative to commercial FTP clients

Segments4 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration23 records

Feature8 records

Partnerships

Three partnerships are on record, tiered core.

• CryptomatorcoreTechnology or IntegrationCryptomator integration provides client-side encryption with interoperable vaults. Supports filename encryption, file content encryption, and directory structure obfuscation. Version 6 of the integration is supported with no backdoors and no registration required.
• iterate GmbHcoreStrategic or Co-development Partneriterate GmbH is the developer and copyright holder of Cyberduck (2016-2025) and Mountain Duck. The company is based in Switzerland and contributes to open-source projects including OpenStack Swift Client Java Bindings, Rococoa Objective-C Wrapper, and SSHJ.
• Mountain DuckcoreOEM/ Whitelabel/ Licensing PartnerMountain Duck is a companion product that mounts any remote server storage as a local disk in Finder.app on Mac and File Explorer on Windows. It shares the same bookmark system as Cyberduck and is developed by iterate GmbH.

Scale indicators2 records

Recent moves6 records

Expansion highlights4 records

Direct peers

• ExpanDrive: Commercial file transfer and cloud storage mounting client supporting S3, SFTP, WebDAV, OneDrive, Google Drive, Dropbox, Box, and more. Directly competes in the same multi-protocol/multi-cloud access category.
• WinSCP: Free SFTP, FTP, WebDAV, and S3 client for Windows with strong scripting/PowerShell support. Directly competes for system administrator and developer use cases.
• Commander One (Eltima): macOS file manager with FTP, SFTP, WebDAV, and cloud storage (S3, Google Drive, Dropbox, OneDrive) support. Competes for the same dual-pane Mac power-user workflows.
• ForkLift: Mac file manager and transfer client with FTP, SFTP, WebDAV, SMB, and cloud provider support. Targets the same macOS power-user segment as Cyberduck.
• Panic Transmit: Premium Mac file transfer client supporting FTP, SFTP, WebDAV, S3, and major cloud providers. Targets the same Mac-native professional user base as Cyberduck with a paid model.
• FileZilla: Open-source FTP/FTPS/SFTP client available on Windows, macOS, and Linux. Closest comparable to Cyberduck in cross-platform open-source file transfer with similar protocol support.
• Fetch Softworks: Long-standing Mac-only FTP, SFTP, and WebDAV client targeting individual and SMB users. A direct niche competitor in the Mac file transfer segment.
• Mountain Duck: Companion product from iterate GmbH (same parent as Cyberduck) that mounts remote servers and cloud storage as local disks on Mac and Windows. Shares the bookmark system with Cyberduck and represents its commercial sibling.
• NetDrive: Cloud storage mounting utility that maps S3, OneDrive, Google Drive, Dropbox, and other providers as local drives. Closely comparable to the Cyberduck + Mountain Duck combination.

Emerging players

• MSP360 (formerly CloudBerry) Explorer: Cloud storage browser with strong S3 and multi-provider support, available in free and paid tiers. Overlaps with Cyberduck's S3-centric workflows for technical users.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• GitHubgithub.com/iterate-ch/cyberduck
• Xx.com/cyberduckapp

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Cyberduck