Graphene Cloud Explorer

GrapheneCybersecurity

About this app

Graphene Cloud Explorer is a privacy-first cloud file explorer for secure upload, download, and file management.

The app is built on zero-knowledge, client-side encryption: files are encrypted on your device before upload, and we do not receive your passphrase, encryption keys, or plaintext file content. Our provider-blind, zero-trust architecture is designed to minimize trust in any single party and reduce data exposure.

Explorer capabilities:
Upload and download files securely
Browse, open, and manage cloud-stored files
Access files across desktop, mobile, and web clients
On-demand file operations
Security and privacy highlights:

Client-side encryption before transfer
No provider key access or key custody
Filename obfuscation and minimized metadata visibility
Strong hash-based key derivation with 512-bit derived key material
Open-source code for public review and independent verification

Platform availability:
Desktop: Windows, macOS, Linux
Mobile: iOS, Android
Web: browser-based encrypted explorer
Early Access offer:
New users can start with 100 GB free (no credit card required). This limited Early Access Beta offer may end when free-user capacity is reached. Early Access users keep 100 GB free while Graphene Cloud remains in operation. Beta service is provided as-is and temporary issues may occur.

What’s new

fix:
onboarding UI updated