Filen
Summary
Filen is a cloud storage service that encrypts files on the client before storage, using zero-knowledge, end-to-end encryption. It supports syncing and network-drive access through Smart Sync and five sync modes across Windows, macOS, Linux, iOS, Android, and the web. Mobile apps include encrypted camera uploads, offline files, notes, chats, and notifications. Encrypted notes support rich text, code, Markdown, and checklists, while chats are end-to-end encrypted. Developers have access to a documented API, command-line interface, and TypeScript, Rust, and Go SDKs. Its desktop client and CLI can run local WebDAV and S3-compatible mirror servers. Filen says its apps use the AGPL v3 open-source license, and that its headquarters and servers are in Germany. The Free account costs 0.00 EUR per free and includes 10GB storage. Paid monthly plans start with Pro I at 1.99 EUR per month for 200 GiB; higher tiers include 500 GiB, 2 TiB, or 10 TiB. Filen says data in free accounts is deleted after three months of inactivity, with reminder emails beforehand.
Who it is for
Filen suits people and organizations seeking encrypted cloud storage, including developers who want SDKs, an API, or command-line tools. Its notes, chats, and offline mobile files may also suit users who want those functions alongside storage.
What is good
- Client-side encryption and zero-knowledge technology.
- Syncing and network-drive access with five sync modes.
- Mobile apps offer encrypted camera uploads and offline files.
- Developer tools include API, CLI, and three SDKs.
- Free account includes 10GB storage.
What to know first
- Inactive free-account data is deleted after three months.
- Free accounts have 10GB storage.
- Paid plans start at 1.99 EUR per month.
Verdict
Filen combines encrypted file storage and syncing with notes, chats, and developer tools across major desktop and mobile platforms. Its free account has an inactivity deletion policy, so consider that before relying on it for long-term storage.
Filen plans and pricing
All plansCompared on cloud storage services
Facts
- Free plan
- Yesfilen.io · 20 Sept 2026
- Storage limit
- 200filen.io · 20 Sept 2026
- File versioning
- Yesfilen.io · 20 Sept 2026
- Zero-knowledge encryption
- Yesfilen.io · 20 Sept 2026
- Device platforms
- Windows,macOS,Linux,iOS,Androidfilen.io · 20 Sept 2026
- Product
- Filen is a zero-knowledge, client-side end-to-end encrypted cloud storage service.filen.io · 1 Oct 2026
- Sync and drive
- Filen provides network-drive access with Smart Sync and five sync modes.filen.io · 1 Oct 2026
- Collaboration
- Filen offers encrypted notes with rich text, code, Markdown, and checklist options, plus end-to-end encrypted chats.filen.io · 1 Oct 2026
- Developer tools
- Filen provides TypeScript, Rust, and Go SDKs, a documented API, and a command-line interface.filen.io · 1 Oct 2026
- Integrations
- The CLI and desktop client can run local WebDAV and S3-compatible mirror servers.filen.io · 1 Oct 2026
- Mobile
- The mobile apps support iOS and Android, encrypted camera uploads, offline files, notes, chats, and notifications.filen.io · 1 Oct 2026
- Encryption
- Filen encrypts data client-side with AES-GCM 256-bit encryption and states that its file encryption is quantum resistant.filen.io · 1 Oct 2026
- Open source
- Filen says all of its apps are released under the AGPL v3 open-source license.filen.io · 1 Oct 2026
- Hosting and compliance
- Filen says its headquarters and servers are in Germany, its servers are in Tier III-IV ISO27001-certified colocation data centers, and it is GDPR compliant.filen.io · 1 Oct 2026
- Support
- Filen advertises 24/7 customer support through its support panel and contact channels.filen.io · 1 Oct 2026
- Inactive free accounts
- Filen says data from inactive free accounts is deleted after three months of inactivity, with reminder emails beforehand.docs.filen.io · 1 Oct 2026
- Audience
- Filen says its service is built for individuals, professionals, businesses, developers, and people who prioritize security.filen.io · 1 Oct 2026
Company
- Founded
- 2021filen.io · 23 Sept 2026
- Headquarters
- Recklinghausen, Germanyfilen.io · 23 Sept 2026
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Sources
- filen.io/pricing;· checked 20 Sept 2026
- filen.io· checked 1 Oct 2026
- filen.io/products/cli· checked 1 Oct 2026
- filen.io/products/mobile· checked 1 Oct 2026
- filen.io/about· checked 1 Oct 2026
- docs.filen.io/docs/web/facts/· checked 1 Oct 2026
- filen.io/pricing· checked 1 Oct 2026
- docs.filen.io/docs/web/· checked 1 Oct 2026