whats-best.ai

Cloud Storage & File Sharing

Filen

EU-Made Report an error

Panel rating · 6 judges · How to read the stars

Category median

Sovereignty: not determined

0–5 in half steps. 5 means the rubric's top anchor is met on the evidence.

by Filen Cloud Dienste UG (haftungsbeschränkt) · filen.io

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Filen: AI-assisted analysis on whats-best.ai Filen: AI-assisted analysis on whats-best.ai (dark)

Add ?theme=dark to the image address for dark backgrounds. The badge shows the category and the month of the latest evaluation, and EU-Made where that is the product’s provenance. It never shows a score.

Filen at a glance

Vendor
Filen Cloud Dienste UG (haftungsbeschränkt)
Headquarters
Not stated on the vendor’s pages as of 1 Nov 2026
Data hosting
Default not stated; pages mention Germany source, captured 1 Nov 2026
Free plan
Yes, per the vendor’s own page source, captured 1 Nov 2026
Panel verdict
The AI panel rates Filen 2.5/5, the mean of 6 judges. Filen is end-to-end encrypted cloud storage from Filen Cloud Dienste UG in Recklinghausen, and the bench reads it as an individual-consumer product that runs out of evidence where organisations begin. how scores are made
As of
Vendor pages captured 1 Nov 2026; evaluated by the panel 1 Nov 2026. all sources

Filen alternatives, European ones first →

Read this page as one judge. Each weighs the same scores by what they care about.

The Skeptic

Weighted verdict

Has seen "end-to-end encrypted" on a service that switches it off for shared folders, "hosted in Germany" on storage whose accounts and support run from the US, and "lifetime" plans from a company two years old. Reads that a product is "GDPR-compliant" and asks who holds the keys, whether ten years of folders, versions and shares can be exported in a form another provider imports — and what leaving would cost.

Same scores as the panel view — this lens weights them the way this judge cares.

Scored by The Skeptic

Panel median The Skeptic This judge’s scores over the panel median. Each label opens its reasoning below.
Scores per criterion, in stars out of 5
Criterion Panel median The Skeptic
Sync, clients & file access 3.5 of 5 3 of 5
Sharing & external collaboration 1.5 of 5 1.5 of 5
Encryption, key custody & recovery 3 of 5 3 of 5
Export, API & self-hosting 3 of 5 3 of 5
European sovereignty 3 of 5 3 of 5
Pricing transparency 3.5 of 5 3 of 5

Sync, clients & file access

How this is scored

How files reach the people who work with them: desktop clients for Windows, macOS and Linux, files on demand (virtual drive) and selective sync, offline access, mobile apps with camera upload and offline folders, a web interface, block-level or delta sync for large files, sync of folders outside the main folder, file size limits, preview of common formats, full-text search, and access through open protocols (WebDAV, SFTP, S3) or a mounted network drive.

0 — Not a file storage or sync product; files cannot be stored and synced with it.

3 — A web interface and apps for some platforms to upload and download files; desktop sync, files on demand, offline access and limits are basic or not described.

5 — Desktop sync clients for Windows and macOS, files on demand or selective sync, mobile apps with offline files and camera upload, a web interface with previews, file size limits stated, and search by file name.

8 — Clients for Windows, macOS and Linux, a virtual drive with files on demand, block-level or delta sync documented, full-text search inside documents, access via WebDAV, SFTP or S3, large-file handling stated, and LAN sync or a performance figure for big folders.

10 — File access that a whole organisation runs on: every platform covered with feature parity stated, sync conflicts and their resolution documented, open protocols and a mountable drive on every desktop, search across content and metadata with OCR, and sync behaviour and limits published in technical documentation.

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The Skeptic

A network drive with Smart Sync is documented for Windows, macOS and Linux, alongside five sync modes, a CLI and WebDAV/S3 gateways, which takes file access beyond the basics. However, the only word on full-text search is a feature request on the feedback board still marked as started, two-way sync on Android and FileProvider on macOS are open requests, and we found no public information on camera upload, offline files, file size limits or previews. 1 2

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Sharing & external collaboration

How this is scored

How files are shared inside the team and with people outside it: shared team folders or spaces, share links with password, expiry, download limits and view-only or no-download mode, upload links (file requests) for customers, guest or external user accounts, link and access reports, notifications, watermarking, comments and file locking, editing of office documents in the browser together, large-file transfer, and an Outlook or Teams add-in for sending links instead of attachments.

0 — Files cannot be shared with anyone else.

3 — Folders and files can be shared with other users and by public link; link controls, upload links and external accounts are basic or not described.

5 — Shared team folders, share links with password and expiry, view-only links, upload links for external people, permissions per folder (view, edit), notifications on changes, and office documents opened and edited in the browser.

8 — Link policies the administrator sets (forced expiry, passwords, domains allowed), download limits and no-download view, watermarking, guest accounts with their own permissions, an access log per share, file locking and comments, co-editing documented with the editor named, and an Outlook or Teams add-in.

10 — External collaboration at the level of a data room: granular rights including print and download control on shared files, revocation that also reaches copies already opened, recipient identity verification, a complete record of who opened and downloaded what, and end-to-end encryption kept intact when sharing externally and when editing.

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The Skeptic

File sharing is listed as an included feature and encrypted notes let you add other users, but the evidence stops there. We found no public information on link passwords, expiry, download limits, upload links, guest accounts, file locking or office co-editing, and the vendor's own feedback board shows that recipients of a shared folder cannot upload into it — an open request with 28 votes. This is basic sharing, not external collaboration. 1 2 5

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Encryption, key custody & recovery

How this is scored

How the files are protected and restored: encryption in transit and at rest, client-side or end-to-end encryption and whether it covers all folders, sharing and office editing, who holds the keys and what happens when a user loses theirs, customer-managed keys, two-factor authentication and single sign-on, version history and its length, a recycle bin, restore of a whole folder or account to a point in time after ransomware, ransomware detection, malware scanning, an independent security audit or penetration test, a bug bounty, and certifications (ISO 27001, SOC 2, BSI C5) with their scope. Where the data is stored is scored under sovereignty.

0 — Files are stored without any stated encryption and no account protection beyond a password.

3 — Encryption is mentioned and a recycle bin or version history exists; key custody, two-factor, restore after ransomware and audits are basic or not described.

5 — TLS in transit and AES encryption at rest stated, two-factor authentication, version history with its length stated, a recycle bin, the restore of deleted or overwritten files, and a security page naming at least one certification or audit.

8 — Client-side or end-to-end encryption documented with who holds the keys (or customer-managed keys), a whitepaper describing the scheme, single sign-on (SAML), restore of a folder or account to a point in time, ransomware detection or recovery documented, an independent audit or penetration test named, and ISO 27001, SOC 2 or BSI C5 stated with scope.

10 — Security that can be verified: zero-knowledge end-to-end encryption by default that stays on for sharing and editing, the cryptography published and externally audited with the report available, key recovery for organisations documented without the provider gaining access, open-source clients or a public bug bounty, and certifications published with their scope and date.

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The Skeptic

Zero-knowledge client-side AES-256 encryption is documented, and the pages back the claim with its uncomfortable corollary: forget your password and you lose all files unless you exported a recovery key, which is what a provider that truly cannot read your data would have to say. Open-source apps, encrypted thumbnails, a warrant canary and a PGP key reinforce it. But we found no public information on any independent audit, ISO 27001, SOC 2 or BSI C5 certification, single sign-on, a recycle bin, or restore after ransomware, and the only word on two-factor is an open request for passkey support. 1 2 4 7

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Administration, audit & governance

How this is scored

What an administrator controls: an admin console with users, groups and roles, provisioning through Entra ID, Google or LDAP with SCIM, quotas per user or team, an audit log of logins, shares and file actions with export, retention policies and legal hold, data loss prevention or classification, device management with remote wipe and unlinking, policies for external sharing, account transfer when someone leaves, team folders that belong to the company rather than to a user, and reports on storage and sharing.

0 — No administration: every account is independent and nobody can manage the team's users or files.

3 — A team plan with an administrator who can invite and remove users; roles, audit log, retention and device controls are basic or not described.

5 — An admin console with users, groups and admin roles, quotas, an activity or audit log, policies for external sharing, file transfer when a user leaves, company-owned team folders, and remote unlinking of lost devices.

8 — Provisioning via SCIM or a directory (Entra ID, Google, LDAP), an exportable audit log covering logins, shares and file actions, retention policies and legal hold, remote wipe, IP or device restrictions, data classification or DLP, and integration with a SIEM.

10 — Governance a regulated organisation can sign off: granular delegated administration per department or tenant, retention and legal hold with eDiscovery export, DLP with content inspection, every admin and user action logged and streamed to a SIEM, and the audit log retention and completeness stated.

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The Skeptic not rated — no public information

We found no public information on administration and governance: the homepage, feedback board, pricing page and terms say nothing about an admin console, roles, provisioning, audit logs, retention or device management. The pricing model of individual plans stacking on one account and a family-sharing request with 175 votes still open suggest a consumer product, but no captured page states what a team administrator could control. 1 2 5 8

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Export, API & self-hosting

How this is scored

Whether the files and their structure can leave and connect: a bulk export or download of all data with folders and versions, open protocols (WebDAV, S3, SFTP) usable for migration, a documented REST API and SDKs, webhooks, migration tools from Dropbox, Google Drive, OneDrive or a file server, integrations with office suites, Microsoft 365 and Teams, Slack, CRM and project tools, an app marketplace, open-source code, a self-hosted or on-premise edition, and deletion of data on termination.

0 — Files can only be downloaded one by one; no export, API or migration path.

3 — Files can be downloaded in bulk or as an archive; an API, migration tools, integrations and self-hosting are basic or not described.

5 — A documented API, bulk download of all files with the folder structure, a migration path from at least one named provider, integrations with named office and collaboration tools, and what happens to data after cancellation stated.

8 — A REST API with SDKs and webhooks, open-protocol access (WebDAV, S3 or SFTP) that makes migration tool-independent, migration tools in both directions or a supported migration service, an app marketplace, a self-hosted or on-premise edition, and deletion on termination under stated terms.

10 — The customer owns the data end to end: open-source code under a named licence that runs fully self-hosted with feature parity stated, a complete export including versions, shares and permissions in a documented format, and the deletion of every copy and backup on termination documented.

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The Skeptic

TypeScript, Rust and Go SDKs, a fully-featured CLI, open-source apps and the option to self-host a WebDAV or S3 gateway in front of the storage give a developer a real way in and out, and deletion on termination is spelled out — including the honest note that retention after termination is optional and not guaranteed. But we found no public information on a migration path from Dropbox, Google Drive or OneDrive, on webhooks, an app marketplace, or a bulk export that includes versions and shares. 1 2 7

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European sovereignty

How this is scored

Who the contracting entity and the parent company are, where files, metadata and backups are stored and processed, and who the subprocessors are (data centres, CDN, email that carries share notifications, support desk, payment, office editing). Independently sourced by the sovereignty pipeline; files hold the company's documents and personal data, so the whole chain counts, not only the storage. End-to-end encryption with keys only the customer holds reduces what a foreign provider could hand over but does not change who the provider is. A self-hosted edition the customer runs on its own European servers counts as the customer's chain, whatever the vendor's seat.

0 — Non-EU vendor and contracting entity, storage location unstated, subprocessors unnamed, and no data processing agreement offered.

3 — A privacy policy and a data processing agreement exist, but the storage location is unstated or non-EU and the subprocessors are not listed.

5 — EU storage available and an EU contracting entity or EU representative, but parts of the chain (account data, metadata, notifications, support, office editing, payment) run through non-EU providers without a stated safeguard, or the parent company is subject to non-EU disclosure laws.

8 — EU storage on named data centres, EU or EEA or Swiss contracting entity, subprocessors listed with their locations, a data processing agreement published, and security certifications (ISO 27001, BSI C5, SOC 2) stated — or a self-hosted edition documented that keeps every file on the customer's own servers.

10 — Sovereign end to end and evidenced: European ownership, entity, storage and every subprocessor, or a self-hosted open-source edition with no call home, data export and deletion documented, and certifications published with their scope rather than implied.

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The Skeptic

The contracting entity is Filen Cloud Dienste UG in Recklinghausen with a commercial register number and VAT ID, the pages state that all servers are hosted in Germany with no third-country storage except payment providers, and both the analytics tool and the feedback tool are self-hosted in Germany. That is a more European chain than most providers show. But no data centres are named, we found no published data processing agreement or certifications, and the payment leg runs through PayPal, Stripe and Coinbase — providers flagged for US disclosure exposure, softened only by the note that PayPal Europe and Coinbase Europe serve the European region. 1 6 7 8

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Pricing transparency

How this is scored

Whether a buyer can compute the real annual cost from public pages alone: price per user or per plan, storage included per user or pooled, the minimum number of users, what extra storage costs, which features (end-to-end encryption, SSO, audit log, longer version history, data residency, advanced admin) need a higher tier or an add-on, the free tier and its limits, lifetime offers and their terms, the self-hosted edition's licence and support, minimum term and VAT.

0 — No public prices at all; every customer is a sales call.

3 — A starting price or a free tier exists, but how cost scales with users, storage or features is unclear.

5 — Business tiers are public with their price per user and storage included, but at least one commonly needed piece (extra storage, SSO, audit log, data residency, minimum users) is unpriced or "on request".

8 — Every tier priced publicly with its scaling rule (users, storage), extra storage and add-ons priced, minimum users and term stated, the self-hosted edition's licence and support cost stated, and VAT treatment stated.

10 — Complete price computability: annual cost derivable for a given team size, storage need and feature set, with every add-on, migration, support and overage fee and the cancellation and data-return terms published.

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The Skeptic

The monthly ladder is fully public — 1.99€ monthly for 200 GiB up to 39.99€ monthly for 10 TiB — plans stack with no upper limit, VAT treatment and the 30- and 365-day terms are stated, and cancellation is self-service at the end of the paid term; the lifetime plan's terms are stated plainly, active as long as the service is online with a login required every three years. "No hidden fees" with every feature and encryption included means there is no add-on tiering to decode. But the captured pages show no annual or lifetime price and no limit for the free tier, so a buyer cannot compute a full annual cost from public pages alone. 1 5 8

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European sovereignty — proven facts

0 of 6 dimensions proven

Built only from facts shown on the vendor's own pages. A dimension we could not prove is left open, not scored as zero.

Hosting location Not determined ⚠ unverified — uncited Report an error
Hosting options Not determined — uncited Report an error
Open source Not determined ⚠ unverified — uncited Report an error
Data processing agreement Not determined — uncited Report an error
Transfer impact assessment Not determined — uncited Report an error

Questions about Filen

Is Filen European?

Yes. whats-best.ai classifies Filen as EU-Made.

Where does Filen store data?

The default storage location for customer data is not stated on the vendor’s pages as of 1 Nov 2026. The vendor’s pages mention Germany as hosting location, per the vendor’s page captured 1 Nov 2026.

Does Filen have a free plan?

Yes. Filen has a free plan, per the vendor’s page captured 1 Nov 2026.

What are the best alternatives to Filen?

As of 1 Nov 2026, the panel rates Nextcloud Files (Nextcloud Hub) (4/5), Tresorit (3.5/5) and Proton Drive (3/5) highest among the other 13 Cloud Storage & File Sharing products evaluated. The highest-rated European alternative is Nextcloud Files (Nextcloud Hub) (EU-Made). Ratings are the AI panel’s opinion, formed from public evidence: how scores are made. The full list, with European products first: Filen alternatives.

Where this could be wrong

What we left out

A claim that does not survive our checks costs us the claim, not the page. This is what was taken off this one.

Sources (9)

The pages every claim on this page was read from — each one checked, dated, and kept verifiable.

  1. 1 Vendor homepage filen.io Checked 1 Nov 2026 Details →
  2. 2 Features page features.filen.io Checked 1 Nov 2026 Details →
  3. 3 Security / trust page filen.io Checked 1 Nov 2026 Details →
  4. 4 Company page (servers and encryption) filen.io Checked 1 Nov 2026 Details →
  5. 5 Pricing page filen.io Checked 1 Nov 2026 Details →
  6. 6 Legal notice filen.io Checked 1 Nov 2026 Details →
  7. 7 Privacy policy filen.io Checked 1 Nov 2026 Details →
  8. 8 Terms of service filen.io Checked 1 Nov 2026 Details →
  9. 9 Code repository (open-source licence) — found from the homepage github.com Checked 1 Nov 2026 Details →