Internxt

Internxt is a Valencia-based zero-knowledge encrypted cloud storage platform where files are encrypted client-side before upload — not even Internxt can access your data — using post-quantum Kyber-512 + AES-256 cryptography. An open-source codebase and independent security audit by Securitum in 2024 provide external verification of every security claim.

Files sync across Windows, macOS, Linux, iOS, and Android via native apps. Sharing works through encrypted links that are password-protected and time-limited, while Internxt Send enables large-file transfers with zero provider access. A permanently free 1 GB plan requires no credit card, and lifetime payment options eliminate recurring subscription costs.

Key benefits:

• Zero-knowledge E2E encryption — Internxt cannot access files even under legal compulsion
• Post-quantum cryptography (Kyber-512 + AES-256) for future-proof data protection
• Open-source code independently audited by Securitum in 2024
• 1 GB permanently free — no credit card, no expiry
• Lifetime plans available as one-time payment with no recurring subscription
• Internxt Send — encrypted large-file transfers with expiring, password-protected links
• ISO 27001:2022 and HIPAA certified for enterprise and healthcare use cases

Headquartered in Valencia, Spain, Internxt processes all data under GDPR and EU data protection law. The platform holds ISO 27001:2022 and HIPAA certifications, stores all data in the EU, and was independently security-audited. Founded in 2020 by Fran Villalba Segarra, it offers the most rigorous open-source privacy credentials of any EU cloud storage provider.

Built for individuals, freelancers, and teams who want provably private cloud storage — because the code is open for anyone to verify, not just a privacy policy to trust.