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Web3 Terminal

why...? why not...? I'm a Linux enthusiast, and I tried creating something that will allow 'normal' people to have a glimpse at my world. and now implementing in Blockchain.

Web3 Terminal

Created At

ETHGlobal Bangkok

Winner of

Blockscout - Blockscout Explorer Big Pool Prize

Prize Pool

Project Description


Web3Terminal: A Web-Based Blockchain Command-Line Interface

Web3Terminal is an intuitive web-based platform designed to replicate the powerful experience of a command-line terminal. It enables users to execute Web3 and blockchain operations directly through a UI that visually resembles a terminal interface. The product is tailored for developers, crypto enthusiasts, and power users who want to perform blockchain operations efficiently through a web interface without complex browser extensions or other tools.

Key Features and Functionalities

1. Web-Based Terminal UI

  • Terminal-Like Experience: The Web3Terminal provides a web UI that looks and behaves like a command-line interface. This includes a text-based UI where users can input commands, see real-time output, and interact with the blockchain visually.
  • Responsive and Modern Design: The terminal UI is accessible across desktop, tablet, and mobile browsers. The design is sleek and optimized for performance, with a simple color scheme that mimics traditional terminal colors (e.g., black background, green/white text).

2. Rich Blockchain Search Capabilities

  • Search by Address, ENS, and Ticker: Users can easily enter an address or ENS name to get the token balance and activity information.
  • Block and Transaction Lookups: Search for specific blocks or transactions to get detailed data like gas used, miner, and internal operations.
  • Quick Commands for Ticker Symbols: Retrieve information about specific tokens by typing their ticker names (e.g., :lookup ETH).

3. Endpoint Management and Switching

  • Flexible Network Switching: Switch seamlessly between Mainnet, Testnets, and other networks like Binance Smart Chain or Polygon.
  • Add Custom Endpoints: Users can add custom RPC URLs through simple commands, making it easy to connect to private or specialized blockchain nodes.

4. User-Friendly Web UI Elements

  • Interactive Input Prompts: The UI uses prompts and interactive fields where users can easily provide inputs (e.g., entering wallet addresses, selecting networks).
  • Command Suggestions and Autocomplete: The terminal UI provides command suggestions as users type, along with auto-complete functionality to minimize typing errors.
  • Form-Based Inputs for Complex Actions: For more detailed operations (e.g., interacting with smart contracts), a form appears within the terminal to collect all necessary data fields.

5. Real-Time Blockchain Operations

  • Send Transactions: Users can send ETH or tokens by simply entering transaction details. Transactions are signed via integrated wallet connections.
  • Smart Contract Interaction: Users can provide the contract address and ABI, and directly call smart contract functions through the terminal.

6. Wallet Integration

  • Web3 Wallet Connection: Connect with popular wallets such as MetaMask, WalletConnect, or any browser-based wallet, allowing easy access to funds and blockchain transactions.
  • Multi-Wallet Support: Switch between multiple connected wallets without logging out, manage watch-only wallets, and view portfolio summaries.

7. Gas Price Estimation Widget

  • Live Gas Updates: The UI includes a real-time gas fee widget, displaying the current gas price for Ethereum or other networks.
  • Gas Fee Customization: Users can specify their preferred gas price before sending a transaction, giving them control over transaction speed and cost.

8. Developer Features

  • Shortcut Commands and Macros: Support for defining shortcut commands to quickly perform repetitive actions, such as switching between networks or fetching wallet details.
  • Script Execution from Terminal: Users can write simple scripts directly in the terminal for recurring tasks, like transferring tokens or querying contract data.

9. Secure Storage and Management

  • LocalStorage and Encryption: User wallet information, RPC URLs, and settings are stored securely in encrypted form within the browser’s local storage. This ensures data privacy.
  • Private Key Safety: Wallets are connected via existing wallet extensions, so no private keys are directly handled by the platform, enhancing security.

10. Subscription to Blockchain Events

  • Real-Time Notifications: Users can subscribe to blockchain events such as new blocks, wallet activity, or smart contract events and receive notifications directly in the terminal interface.
  • Event Filters: Use filters to define which events to monitor, such as specific token transfers or contract interactions.

11. Rich Analytics and Portfolio Tracking

  • DeFi Analytics Integration: The UI includes modules to track user participation in DeFi activities like staking, liquidity pooling, and borrowing.
  • Portfolio Overview: Users get a consolidated view of their wallet holdings, token balances, NFT assets, and other blockchain assets, all updated in real-time.

12. Network and Node Tools

  • Node Health Dashboard: Users can check the health of the connected node, including latency, response times, and syncing status. This ensures users are interacting with a healthy blockchain node.
  • Node Switching with One Command: Quickly switch between nodes in one line, e.g., :switch bsc-mainnet.

13. Cross-Chain Compatibility and Operations

  • Multi-Chain Functionality: Apart from Ethereum, users can interact with Binance Smart Chain, Avalanche, Polygon, and other popular chains, all through a unified interface.
  • Cross-Chain Token Swaps: Use integrated APIs to perform token swaps between chains without needing third-party DEX platforms.

14. Visualization and Data Widgets

  • Token Price Tracker: Display live price feeds for tokens, updated in real-time, using integrated APIs like CoinGecko.
  • Gas Fee Widget: Visual representation of network gas prices to help users decide when to transact.
  • Token Holdings Summary: A simple tabular widget that summarizes wallet holdings, including token names, balances, and values in USD.

15. Cross-Platform Access and Availability

  • No Browser Dependency: Web3Terminal can be accessed both on typical browsers and in environments where traditional UIs are limited (such as Docker containers or headless browsers).
  • Single Page Application (SPA): Built as an SPA, ensuring quick navigation without reloads, with an emphasis on fast performance and fluid user interaction.

Use Cases and Benefits

Target Audience

  • Blockchain Developers: Developers building dApps or testing smart contracts who need quick access to blockchain information in a familiar terminal-like environment.
  • DeFi Power Users: Users who want a fast and efficient way to interact with DeFi protocols without switching between various dApps.
  • Crypto Enthusiasts: People who are actively managing multiple crypto wallets, interacting with smart contracts, or keeping track of blockchain events.

Use Cases

  1. Quick Wallet Operations: Check wallet balances, manage multiple wallets, and send transactions—all in one place.
  2. Smart Contract Interaction: Call smart contract functions for testing or debugging purposes in an efficient manner.
  3. Node Management and Analytics: Monitor the health of blockchain nodes, switch endpoints as needed, and troubleshoot blockchain interactions.

Value Proposition

  • Efficiency in One Platform: A single platform that provides all blockchain interactions, avoiding the need to navigate multiple dApps or websites.
  • Developer-Centric Features: Built specifically for developers who prefer a terminal-like experience, reducing the need to use graphical tools.
  • Enhanced Security: Wallet connections are managed via popular Web3 wallets, eliminating the need to input private keys directly into the platform.
  • Multi-Chain Capabilities: Easily switch between blockchains and interact with various DeFi protocols on Ethereum, BSC, Polygon, and more.

Key Benefits

  1. Browserless Flexibility: The terminal-style UI can be accessed across multiple devices and environments, making it ideal for server-side use or quick on-the-go blockchain access.
  2. Enhanced Productivity: Command history, autocomplete, and shortcut features increase productivity by reducing repetitive actions.
  3. Secure and Private: The product uses existing wallet integrations (like MetaMask) to ensure all private key handling is done securely.
  4. Real-Time Data: Widgets like the gas tracker and price feed provide real-time information that helps users make informed decisions.

Web3Terminal brings the power of a command-line terminal to the web, providing an interactive, efficient, and secure way for users to interact with blockchain networks, DeFi protocols, and more—all in a terminal-inspired interface that is accessible from anywhere.

How it's Made

Web3Terminal is a web-based command-line interface for blockchain interactions, built with React.js and Xterm.js for a terminal-like UI. Backend APIs are developed using Node.js and Express.js to handle Web3 operations. The platform uses Ethers.js or Web3.js for blockchain connections and supports multiple networks like Ethereum and BSC. Wallet integration is enabled via Web3Modal or WalletConnect. Real-time features are implemented using WebSockets and event listeners for a responsive blockchain experience.

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