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Duplicati vs Fastmail

Professional comparison and analysis to help you choose the right software solution for your needs.

Duplicati icon
Duplicati
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Fastmail

Duplicati vs Fastmail: The Verdict

⚡ Summary:

Duplicati: Duplicati is an open source backup software that securely stores encrypted, incremental, compressed backups on cloud storage services and remote file servers. It works with standard protocols like FTP, SSH, WebDAV and various backends like Microsoft OneDrive, Amazon S3, Google Drive and more. Duplicati is free, runs on Windows, macOS and Linux.

Fastmail: Fastmail is an email service provider focused on performance, privacy, and security. It offers robust email features for personal and business use with extensive customization options.

Both tools serve their respective audiences. Compare the features, pricing, and user ratings above to determine which best fits your needs.

Last updated: May 2026 · Comparison by Sugggest Editorial Team

Feature Duplicati Fastmail
Sugggest Score — —
Category Backup & Sync Online Services
Pricing Open Source Subscription

Product Overview

Duplicati
Duplicati

Description: Duplicati is an open source backup software that securely stores encrypted, incremental, compressed backups on cloud storage services and remote file servers. It works with standard protocols like FTP, SSH, WebDAV and various backends like Microsoft OneDrive, Amazon S3, Google Drive and more. Duplicati is free, runs on Windows, macOS and Linux.

Type: software

Pricing: Open Source

Fastmail
Fastmail

Description: Fastmail is an email service provider focused on performance, privacy, and security. It offers robust email features for personal and business use with extensive customization options.

Type: software

Pricing: Subscription

Key Features Comparison

Duplicati
Duplicati Features
  • Incremental backups to minimize bandwidth requirements
  • Client-side AES-256 encryption
  • Supports multiple cloud storage providers (Amazon S3, OneDrive, Google Drive, etc)
  • Open source and free
  • Deduplication to avoid uploading duplicate data
  • Scheduling and automation capabilities
  • Command line and web UI available
  • Backup verification and repair
  • Bandwidth throttling
Fastmail
Fastmail Features
  • Email hosting
  • Calendar
  • Contacts
  • Tasks
  • Notes
  • Aliases
  • Catch-all addresses
  • Custom domains
  • Mailbox delegation
  • Sieve filters
  • Conversation view
  • Search
  • Email encryption
  • Two-factor authentication
  • Ad-free interface

Pros & Cons Analysis

Duplicati
Duplicati

Pros

  • Free and open source
  • Strong encryption
  • Good choice of backend storage options
  • Easy to set up and use
  • Deduplication saves bandwidth
  • Wide platform support

Cons

  • Limited reporting capabilities
  • No mobile apps
  • Restores can be slow
  • Some backend providers have usage limits
  • No built-in file versioning
Fastmail
Fastmail

Pros

  • Fast performance
  • Reliable uptime
  • Strong privacy and security
  • Feature-rich
  • Good customer support
  • Competitive pricing

Cons

  • Limited free plan
  • Less name recognition than Gmail
  • Limited integrations compared to Office 365
  • No offline access

Pricing Comparison

Duplicati
Duplicati
  • Open Source
Fastmail
Fastmail
  • Subscription

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Learn More About Each Product

Duplicati
Duplicati
Reviews, pricing & alternatives →
Fastmail
Fastmail
Reviews, pricing & alternatives →

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