Secure encryption.
Zero dependencies.
Encrypt sensitive files locally. No cloud. No tracking. Built for people who need control.
Windows
macOS
Linux0Beta DeploymentsCapabilities
Mathematical certainty for your most sensitive assets.
AES-256-GCM
Galois/Counter Mode for authenticated encryption, providing both confidentiality and integrity.
Local Recovery
Our proprietary hybrid recovery engine allows master-key unlocking without backdoors.
Air-Gapped
Zero network permissions required. SyLock works 100% offline, guaranteed.
Secure Shredder
Cryptographic erasure of source files post-encryption to prevent forensic recovery.
Future Open Source
The source code is being prepared for public release following our successful May 2026 technical audit.
Cross-Native
Optimized native binaries for all major architectures. No electron bloat.
The Mechanics
Entropy Generation
SyLock generates a high-entropy master key pair locally on your hardware. This key is never shared or transmitted.
Encapsulation
Individual files are wrapped in unique symmetric keys, which are then encapsulated by your master public key.
Vault Solidification
The result is a .enc vault container that can only be opened by your private master key or the specific file password.
Audit Status
Detailed architecture and operational parameters for security transparency.
SyLock has successfully passed Phase 2: Internal Technical Audit as of May 2026. The assessment utilized global standard tools including Bandit, Semgrep, pip-audit, and Hypothesis to ensure cryptographic integrity.
View Technical DossierBuilding the tools I needed.
I'm Srinath V V. As a robotics researcher, I handled data that needed absolute protection—but found existing tools either too complex or reliant on the cloud.
SyLock was born from a simple requirement: Professional encryption that never phones home. No venture capital, no data harvesting—just clean, mathematical security.
Beta Access.
Download the native beta binary. Please report all security issues via security@sylock.net.