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S3Drive alternatives: 6 apps ranked by verified data

Facts checked Nov 1, 2026AppBreakup editorialHow we rank

Common reasons people leave S3Drive: the client is closed source, and drive mount, full sync modes and background backup need a paid licence. We ranked 6 alternatives by how directly each one replaces S3Drive, then by reviews, real visits and how recently each app's facts were checked against its own website. Cryptomator currently ranks first.

Quick comparison

#AppPricingOpen sourcePlatformsVerified factsScore
1Cryptomator logoCryptomatorOpen sourceYesWindows, macOS, Linux +23 of 368.8
2Filen logoFilenFree plan + paidNoWeb, Windows, macOS +35 of 561.8
3Internxt logoInternxtFree plan + paidNoWeb, Windows, macOS +34 of 459.4
4Proton Drive logoProton DriveFree plan + paidNoWeb, Windows, macOS +29 of 957.5
  1. Cryptomator logo

    1. CryptomatorTop pick

    Best for: People who want to keep their current cloud but encrypt what goes into it

    Open sourceWindows, macOS, Linux, iOS, Android

    68.8

    score / 100

    Why switch from S3Drive

    Open-source client-side encryption for any cloud drive folder, with free desktop apps.

    Pros

    • Works with any cloud storage folder
    • Encrypts filenames as well as contents
    • Free, open-source desktop app

    Cons

    • Mobile apps are paid
    • Sharing vaults with others is awkward without Hub
    • Forgotten passwords cannot be recovered
    Visit Cryptomator Details and reviews
    How this score is calculated
    Editorial fit ×0.3100
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.15100
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is Cryptomator a good S3Drive alternative?

    Verified facts

    3 of 3 verified
    Price
    Free and open source
    Checked Oct 29, 2026cryptomator.org(opens source in a new tab)
    Encryption
    AES-256, files and filenames
    Checked Oct 29, 2026cryptomator.org(opens source in a new tab)
    Teams
    Cryptomator Hub with free trial
    Checked Oct 29, 2026cryptomator.org(opens source in a new tab)
  2. Filen logo

    2. Filen

    Best for: Budget-minded users who want encrypted storage and open-source clients

    Free plan + paidWeb, Windows, macOS, Linux, iOS, Android

    61.8

    score / 100

    Why switch from S3Drive

    Zero-knowledge encrypted cloud storage where the provider supplies the storage for you.

    Pros

    • Open-source, zero-knowledge apps on every platform
    • Low prices for encrypted storage
    • Includes encrypted notes and chat

    Cons

    • Small company with limited support capacity
    • Few team and collaboration features
    • Prices in euros only
    Visit Filen Details and reviews
    How this score is calculated
    Editorial fit ×0.377
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.15100
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is Filen a good S3Drive alternative?

    Verified facts

    5 of 5 verified
    Starting price
    €1.99/month for 200 GiB
    Checked Oct 29, 2026filen.io(opens source in a new tab)
    2 TiB plan
    €8.99/month
    Checked Oct 29, 2026filen.io(opens source in a new tab)
    Open source
    All apps
    Checked Oct 29, 2026filen.io(opens source in a new tab)
    Encryption
    Zero-knowledge end-to-end
    Checked Oct 29, 2026filen.io(opens source in a new tab)
    Data location
    Germany
    Checked Oct 29, 2026filen.io(opens source in a new tab)
  3. Internxt logo

    3. Internxt

    Best for: Privacy-focused individuals who want open-source code and EU jurisdiction

    Free plan + paidWeb, Windows, macOS, Linux, iOS, Android

    59.4

    score / 100

    Why switch from S3Drive

    Encrypted all-in-one cloud drive with its own storage plans and open-source clients.

    Pros

    • End-to-end encryption with open-source, audited apps
    • Lifetime plans and a refund window
    • Linux desktop app

    Cons

    • Free tier is only 1 GB
    • Desktop sync is less mature than established rivals
    • Heavy promotional pricing makes real costs hard to compare
    Visit Internxt Details and reviews
    How this score is calculated
    Editorial fit ×0.369
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.15100
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is Internxt a good S3Drive alternative?

    Verified facts

    4 of 4 verified
    Free plan
    1 GB
    Checked Oct 29, 2026internxt.com(opens source in a new tab)
    Open source
    Yes, and audited
    Checked Oct 29, 2026internxt.com(opens source in a new tab)
    Post-quantum encryption
    Yes
    Checked Oct 29, 2026internxt.com(opens source in a new tab)
    Refund window
    30 days
    Checked Oct 29, 2026internxt.com(opens source in a new tab)
  4. Proton Drive logo

    4. Proton Drive

    Best for: People who want encrypted storage alongside an encrypted email account

    Free plan + paidWeb, Windows, macOS, iOS, Android

    57.5

    score / 100

    Why switch from S3Drive

    End-to-end encrypted drive from Proton, simpler if you don't want to manage buckets.

    Pros

    • End-to-end encryption including filenames
    • Open-source, audited apps
    • Bundles well with Proton Mail, VPN and Pass

    Cons

    • Linux support lags behind other platforms
    • Fewer third-party integrations
    • Sync is slower than mainstream services on big libraries
    Visit Proton Drive Details and reviews
    How this score is calculated
    Editorial fit ×0.363
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.15100
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is Proton Drive a good S3Drive alternative?

    Verified facts

    9 of 9 verified
    Free plan
    5 GB
    Checked Oct 29, 2026proton.me(opens source in a new tab)
    Drive Plus
    $4.99/month for 200 GB
    Checked Oct 29, 2026proton.me(opens source in a new tab)
    Version history
    Up to 10 years on Drive Plus
    Checked Oct 29, 2026proton.me(opens source in a new tab)
    Based in
    Switzerland
    Checked Oct 29, 2026proton.me(opens source in a new tab)
    Platforms
    Windows, macOS, Android, iOS, web
    Checked Oct 29, 2026proton.me(opens source in a new tab)
    Starting price
    $4.99 a month (Drive Plus, 200 GB)
    Checked Nov 1, 2026proton.me(opens source in a new tab)
    Proton Unlimited plan
    $12.99 a month (500 GB + VPN)
    Checked Nov 1, 2026proton.me(opens source in a new tab)
    Proton Duo plan
    $19.99 a month (2 TB, 2 users)
    Checked Nov 1, 2026proton.me(opens source in a new tab)
    Money-back guarantee
    30 days
    Checked Nov 1, 2026proton.me(opens source in a new tab)

The best S3Drive alternative for…

The highest-ranked app in this list for each need.

Cryptomator logo

Best S3Drive alternative for most people

Cryptomator

Open-source client-side encryption for any cloud drive folder, with free desktop apps.

rclone logo

Best S3Drive alternative for a free option

rclone

Free open-source command-line tool behind S3Drive's encryption, with mount and sync for 70+ back-ends.

Filen logo

Best S3Drive alternative for a free plan you can upgrade

Filen

Zero-knowledge encrypted cloud storage where the provider supplies the storage for you.

Cyberduck logo

Best S3Drive alternative for open source

Cyberduck

Free open-source S3, SFTP and WebDAV browser for desktop, with optional Cryptomator vaults.

rclone logo

Best S3Drive alternative for self-hosting

rclone

Free open-source command-line tool behind S3Drive's encryption, with mount and sync for 70+ back-ends.

Internxt logo

Best S3Drive alternative for Mac

Internxt

Encrypted all-in-one cloud drive with its own storage plans and open-source clients.

Proton Drive logo

Best S3Drive alternative for Windows

Proton Drive

End-to-end encrypted drive from Proton, simpler if you don't want to manage buckets.

Cryptomator logo

Best S3Drive alternative for Linux

Cryptomator

Open-source client-side encryption for any cloud drive folder, with free desktop apps.

Cryptomator logo

Best S3Drive alternative for iPhone and Android

Cryptomator

Open-source client-side encryption for any cloud drive folder, with free desktop apps.

Filen logo

Best S3Drive alternative for working in the browser

Filen

Zero-knowledge encrypted cloud storage where the provider supplies the storage for you.

S3Drive alternatives: common questions

What is the best alternative to S3Drive?

Cryptomator ranks first right now. Open-source client-side encryption for any cloud drive folder, with free desktop apps. rclone and Filen follow it in our ranking.

Is there a free alternative to S3Drive?

Yes. Cryptomator (open source), rclone (open source), Filen (free plan + paid) and Internxt (free plan + paid) have a free option. Check each app's verified facts for current plan limits.

Is there an open-source alternative to S3Drive?

Yes: Cryptomator, rclone and Cyberduck. rclone can also be self-hosted.

Which S3Drive alternatives work on Linux?

Cryptomator, rclone, Filen and Internxt run on Linux.

Why do people switch from S3Drive?

The complaints we hear most: the client is closed source; drive mount, full sync modes and background backup need a paid licence; you have to set up and pay for storage separately unless you buy theirs.

How is this list ranked?

Every app is scored with the same published formula: how directly it replaces S3Drive, reviews (weighted by verification), visits from AppBreakup, how recently its facts were checked against its own website, and reader votes.