Name: crypt.fyi
Rating: 5 (217 reviews)

Home
Developer Tools
crypt.fyi

crypt.fyi

Zero-knowledge one-time secret transmission tool

Developer Tools · Open Source · Browser Extensions · Cybersecurity

Visit Website

crypt.fyi

Zero-knowledge one-time secret transmission tool

Developer Tools · Open Source · Browser Extensions · Cybersecurity

Visit

Use Cases: Not listed yet
Pricing: Free
Platforms: Not listed yet

Overview

Crypt.fyi is an open-source zero-knowledge secret sharing platform that uses cutting-edge ML-KEM post-quantum encryption to secure sensitive data transmission. Designed for the quantum computing era, this platform ensures your confidential information remains protected even against future quantum computer attacks that could break traditional encryption methods.

The platform operates on a strict zero-knowledge architecture where all encryption happens directly in your browser, meaning servers never access unencrypted data or decryption keys. This client-side encryption model guarantees that your sensitive information remains completely private throughout the entire sharing process.

Details

Key Features

Post-Quantum ML-KEM Encryption: Uses NIST-standardized Module-Lattice-based Key Encapsulation Mechanism for quantum-resistant security
Zero-Knowledge Architecture: Browser-based encryption ensures servers never see unencrypted data or decryption keys
Burn After Reading: Automatic secret deletion after viewing with bot protection mechanisms
Open Source Transparency: Fully auditable codebase for security verification and community contributions

Read full editorial notes

Built for security-conscious professionals, developers, and organizations who need to share passwords, API keys, confidential documents, or other sensitive data, Crypt.fyi addresses the growing need for quantum-resistant cryptography. The platform features burn-after-reading functionality with provisions to prevent erroneous burns from bots or URL introspection, ensuring secrets are automatically deleted after viewing.

Key Features

Post-Quantum ML-KEM Encryption: Uses NIST-standardized Module-Lattice-based Key Encapsulation Mechanism for quantum-resistant security
Zero-Knowledge Architecture: Browser-based encryption ensures servers never see unencrypted data or decryption keys
Burn After Reading: Automatic secret deletion after viewing with bot protection mechanisms
Open Source Transparency: Fully auditable codebase for security verification and community contributions
Content Security Policy: Strict CSP implementation to prevent XSS attacks and unauthorized resource loading

Who This Is For

Security Professionals: Teams requiring quantum-resistant encryption for sensitive data sharing
Software Developers: Engineers sharing API keys, database credentials, and configuration secrets securely
IT Administrators: Organizations needing compliant, auditable secret transmission for compliance requirements

Common Questions

Q: How does post-quantum encryption differ from traditional encryption? A: ML-KEM encryption resists attacks from both classical and quantum computers, unlike traditional methods vulnerable to quantum computing.

Q: Can the service provider access my shared secrets? A: No, all encryption occurs in your browser before transmission, implementing true zero-knowledge architecture.

Q: What happens to secrets after they're viewed? A: Secrets are automatically and permanently deleted from servers after viewing, with safeguards against accidental deletion from bots.

Q: Is the code available for security auditing? A: Yes, Crypt.fyi is completely open-source, allowing full security audits and community contributions.

Alternatives

A shortlist of related products to compare before you leave the page.

View all alternatives

DeviceLab

DeviceLab is a tool that makes responsive testing simple and powerful. Instantly preview y...

Developer Tools Free

DeviceLab is a tool that makes responsive testing simple and powerful. Instantly preview your website or app across 65+ real device frames, including...

65+ Devices – Test on popular phones, tablets, laptops, and more.
2D & 3D Mockups – Switch between flat previews or immersive 3D device views.
Transparent Screenshots – Export clean device captures.

View Product Compare

YG Encoder/Decoder

One-click encoding and decoding for web developers

Developer Tools Free

The extension addresses common web development challenges like handling URLs with special characters, converting HTML entities to prevent XSS attacks,...

Instant URL Encoding/Decoding: Transform complex URLs with special characters into web-safe formats and back with one-click operations
HTML Entity Conversion: Convert HTML markup to encoded entities and vice versa, with automatic XSS protection to prevent malicious script injection
Right-Click Context Menu: Encode or decode any text on any webpage without opening the extension interface, streamlining workflow efficiency

View Product Compare

WailBrew

Manage command-line tools visually without terminal commands

Developer Tools Free Developers

It simplifies the process of managing packages on macOS, making it easier for users to work with command-line tools without needing to learn complex c...

View Product Compare