Is Quilon more secure than cloud-based clipboard managers?

Yes. Quilon uses a strict zero-knowledge architecture. All data is encrypted client-side with AES-256-CBC before leaving your device. Unlike cloud managers, Quilon servers act only as blind relays and never see or store your plaintext data.

How does the 'Auto-Redact' PII feature work?

Quilon includes a local OCR engine that runs directly on your device. It automatically scans screenshots for sensitive information like API keys, credit card numbers, email addresses, and IP addresses, allowing you to blur them instantly before sharing. No image data is sent to the cloud for processing.

Which platforms does Quilon support?

Quilon offers a native desktop experience for Windows and macOS, and a powerful Progressive Web App (PWA) for iOS, Android, and Linux. This ensures seamless clipboard syncing across virtually any device combination without needing app store approvals.

What are 'Brand Kits' in Quilon?

Brand Kits allow you to turn raw screenshots into professional assets instantly. You can apply custom backgrounds, padding, watermarks, and device mockups that match your company's branding guidelines—perfect for documentation and social sharing.

Does Quilon store my clipboard history?

No. Quilon treats clipboard data as ephemeral. Content is synced in real-time via secure WebSockets and is not persistently stored on our servers. Once the session ends or the data is transferred, it's gone from the relay.

Can I receive files from people who don't have Quilon?

Yes, using the 'Secure Drop' feature. You can generate a private, end-to-end encrypted link that allows others to securely upload files directly to your device, even if they don't have a Quilon account.

Is there a free version of Quilon?

Yes. Quilon offers a Free tier that includes unlimited local syncing and basic redaction tools. For advanced features like Brand Kits, larger file transfers, and Secure Drop links, we offer Pro ($59/year) and Founder Lifetime licenses.

How does Quilon compare to AirDrop or Pushbullet?

Quilon is the privacy-first alternative. While AirDrop is limited to Apple devices and Pushbullet has access to your notifications, Quilon works across Windows, Android, iOS, and Linux with military-grade encryption by default.

Quilon Dev

When you copy a password, a private message, or sensitive business information, that data shouldn't end up on someone else's server in readable form. Yet most clipboard sync apps do exactly that.

Quilon is different. We use a zero-knowledge architecture, which means we literally cannot read your data—even if a government demanded it, even if we were hacked, or even if an employee went rogue.

What is Zero-Knowledge?

Zero-knowledge means the service provider (us) has zero knowledge of your actual data. We only see encrypted blobs that are meaningless without your encryption keys. These keys are derived using PBKDF2-HMAC-SHA256 with 310,000 iterations and never leave your devices.

This is fundamentally different from most "encrypted" services that hold the keys to decrypt your data for "account recovery" or "indexing." If they can decrypt it, they can be forced to share it.

How Quilon Implements Zero-Knowledge

1. Client-Side Key Generation

When you set up Quilon, your device generates a unique 256-bit encryption key. This process happens entirely on your local hardware. We don't have a "copy" of this key.

2. AES-256-CBC Encryption

Before any clipboard data leaves your device, it's encrypted using AES-256-CBC.

Your clipboard content is serialized (text, image, or URL).
A random initialization vector (IV) is generated for every sync.
The content is encrypted with your key and the IV.
Only the encrypted payload and HMAC signature are transmitted.

3. Real-Time Relay (No Storage)

Quilon's servers act as a relay—they pass encrypted messages between your devices via secure WebSockets but never store or decrypt them. Unlike Pushbullet or Paste, we don't keep a database of your clipboard history in the cloud.

What We Can See vs. What We Can't

For transparency, here's the data boundary:

We CAN see: Your email (auth), anonymous device IDs, and encrypted payload sizes.
We CANNOT see: Your clipboard text, your images, your files, or your passwords.

With Quilon, you don't have to trust us with your data. The math ensures we can't access it. That's true privacy.