Security that starts
before your files leave your device.
XORS combines zero-knowledge architecture, client-side encryption, and post-quantum cryptography to keep your data private today and resilient against tomorrow's threats.
No credit card required · Zero plaintext stored · Open source
Features
Everything sensitive data demands
Built for developers, researchers, and organizations with long-term confidentiality requirements.
Hybrid encryption
AES + ML-KEMAES-256-GCM encrypts your files. ML-KEM wraps the key. Fast symmetric encryption guarded by quantum-resistant key encapsulation.
Zero plaintext storage
Client-side onlyFiles are encrypted before leaving your device. Cloudflare R2 only receives ciphertext. Even we cannot read your files.
Self-destruct files
TTL + count limitSet files to auto-delete after a time limit or download count. MongoDB TTL handles deletion automatically, server-side.
Cryptographic audit trail
SHA-256 chainedEvery action logged with a SHA-256 chained audit trail. Each entry signs the previous one — tamper-evident by design.
Quantum security score
0–100 scoringEvery file gets a score based on encryption type, integrity hash, sharing status, and self-destruct settings. Know your risk at a glance.
Tamper detection
GCM auth tagAES-GCM authentication tag detects any modification to encrypted files. SHA-256 hash provides an additional integrity check.
Encryption pipeline
4 steps. Zero trust required.
You upload
Select any file. We accept any file type up to 100 MB. Nothing is transmitted yet.
AES-256 encrypts
A fresh 256-bit key is generated. Your file is encrypted in-browser using AES-256-GCM with an auth tag.
ML-KEM wraps key
The AES key is encapsulated with ML-KEM. The raw key never touches the server.
Stored securely
The encrypted file and the wrapped key are stored separately. Even a full server compromise yields nothing readable.
Security standards
Only NIST standardized cryptography
We do not use experimental or unvetted algorithms. Every primitive in this stack has been standardized by NIST.
Use cases
Built for data that can't be compromised
Wherever confidentiality has to outlast the next decade of computing, PQC Cloud Storage fits in.
Financial Records
Store statements, audits, and transaction logs with hybrid AES + ML-KEM encryption built to government-grade standards.
View moreHealthcare Research
Protect patient records and clinical research data with encryption designed to stay secure through the quantum transition.
View moreLegal Compliance
Keep case files, contracts, and privileged communications sealed with a tamper-evident, chained audit trail.
View moreAcademic R&D
Share unpublished research and datasets with collaborators without exposing raw files to any third party, ever.
View moreGovernment & Defense
Meet long-term confidentiality mandates with NIST FIPS 203 post-quantum key encapsulation.
View moreEnterprise IT
Give engineering and ops teams a zero-trust drop-in for secrets, backups, and source archives with self-destruct controls.
View moreBuilt by passionate engineers.
X0RS is a collaborative project focused on building a modern post-quantum secure cloud storage platform with privacy at its core.

Ankit Kumar
Backend & Security
Built secure backend services, authentication and post-quantum cryptography integration.
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Abhijit Giri
Frontend Engineer
Designed responsive UI, dashboard and overall user experience.
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Abhinav Mishra
Backend Engineer
Developed REST APIs, storage services and cloud integration.
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Kavya Chaturvedi
Cloud Engineer
Worked on cloud deployment, storage integration and infrastructure.
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Devashish Tripathi
QA & Documentation
Handled testing, documentation and quality assurance throughout development.
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