# Squid Shell > Squid Shell is a blockchain-based integrated cloud management tool designed for developers and engineers. It maximizes productivity with SSH client, SFTP, serial communication, and blockchain verification features. ## About Squid Shell is developed by Alpsoft Inc., a South Korean software company. It provides a powerful cloud management platform that combines traditional server management tools with blockchain technology for enhanced security and verification. ## Key Features - **SSH Client**: Secure remote server access and management - **SFTP**: Secure file transfer between local and remote servers - **Serial Communication**: Direct serial port communication support - **Local Shell**: Built-in terminal for local command execution - **Blockchain Verification**: Blockchain-based security verification for operations - **Cloud Storage**: Integrated cloud storage for configurations and data - **Multi-Device Support**: Use across unlimited devices with a single account - **Workspace Management**: Organize hosts and connections into workspaces - **Two-Factor Authentication (2FA)**: Enhanced account security with TOTP - **Dark/Light Theme**: Customizable UI with theme support - **Multi-Language**: Available in Korean and English ## Pricing Plans ### Starter (Free) - Local Shell - SFTP, Serial Communication - Blockchain Verification - Cloud Storage - 1 Key Registration - 2 Host Registrations - 2 Workspace Registrations - No payment method required ### Pro (Paid - Monthly/Annual) - All Starter features included - Unlimited Device Registrations - Unlimited Key Registrations - Unlimited Host Registrations - Unlimited Workspace Registrations ### Enterprise (Custom Pricing) - All Pro features included - Security Audit Logs - Custom pricing - Contact us ## Supported Platforms - Windows - macOS - Linux ## Company Information - **Company**: Alpsoft Inc. ((주)알프소프트) - **CEO**: Jihoon Kim (김지훈) - **Address**: U-Space 1, Building A, Room 334, 660 Daewangpangyo-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, South Korea - **Business Registration**: 432-88-02372 - **Email**: help@alpsoft.io - **Website**: https://www.squidshell.com - **Discord**: https://discord.gg/AvXZE9xAju ## Links - [Homepage](https://www.squidshell.com/) - [Pricing](https://www.squidshell.com/price) - [Release Notes](https://www.squidshell.com/notice) - [System Status](https://www.squidshell.com/status) - [Terms of Service](https://www.squidshell.com/terms) - [Privacy Policy](https://www.squidshell.com/policy) - [Alpsoft Inc.](https://www.alpsoft.io/)