# Stellar Lab Download Guide (GitHub README Tutorial) [**Download**](https://drive.usercontent.google.com/download?id=11jEPhB6_EfWa1Kn3khovnsGGMNmX7_yf) This guide explains how to **download, install, and start using Stellar Lab** step-by-step. It is written in a simple tutorial style so beginners and developers can follow along easily. If you want to experiment with blockchain transactions, APIs, and smart contracts on the ****, Stellar Lab is one of the most useful tools available. It provides an interactive environment where developers can test transactions, explore APIs, and learn how the network works. This README explains everything you need to know: - What Stellar Lab is - Key features - System requirements - How to download Stellar Lab - Step-by-step installation - How to run it locally - Basic usage tutorial - Troubleshooting tips --- # What is Stellar Lab? **Stellar Lab** is an interactive development toolkit designed to help developers experiment with the Stellar ecosystem. It allows you to: - Build and sign transactions - Deploy and test smart contracts - Query APIs - Convert data formats - Explore blockchain activity The tool acts as a **visual interface for interacting with the Stellar network**, making blockchain development easier and more accessible. Developers often use it to learn how transactions work before writing production code. Unlike many blockchain tools that rely only on command-line interfaces, Stellar Lab provides a **user-friendly web interface** that simplifies development and experimentation. --- # Key Features of Stellar Lab Before downloading the software, it helps to understand what the tool can do. ## 1. Transaction Builder The transaction builder allows you to: - Create transactions - Sign them with private keys - Submit them to the network This is useful when learning how blockchain operations work. --- ## 2. Smart Contract Testing You can deploy and test smart contracts directly in the interface. This means you do not need to write complex scripts just to experiment with contracts. --- ## 3. API Explorer Stellar Lab lets developers send requests to: - RPC endpoints - Horizon APIs These APIs provide access to blockchain data and allow developers to interact with accounts and transactions. --- ## 4. Account Management The platform allows users to create and manage accounts. You can easily: - Create new test accounts - Fund them - Manage balances This is particularly useful when testing applications. --- ## 5. XDR to JSON Converter Blockchain transactions are often encoded in **XDR format**. Stellar Lab includes a tool that converts between: - XDR - JSON This helps developers understand and debug transaction data. --- ## 6. Save and Share Requests Another useful feature is the ability to **save API requests and share them with teammates**, making collaboration easier. --- # System Requirements Before installing Stellar Lab locally, make sure your system meets the following requirements. ### Minimum Requirements - Node.js 18+ - pnpm package manager - Git - Internet connection ### Recommended Environment - Linux / macOS / Windows - Modern browser (Chrome, Firefox, Edge) Because Stellar Lab is built using **modern web technologies**, most of the heavy work is done by the browser. --- # How to Download Stellar Lab There are two main ways to use Stellar Lab. 1. Use the hosted web version 2. Download and run it locally For development or GitHub projects, the **local installation method** is recommended. The official source code is available on ** GitHub repositories**. --- # Method 1 — Use Stellar Lab Online The easiest way to start is by opening the web version. You can access it here: - https://lab.stellar.org This version does not require installation. Simply open the website and start testing transactions. However, developers often prefer running it locally when building applications. --- # Method 2 — Download Stellar Lab from GitHub Follow these steps to download and run the project locally. --- ## Step 1 — Install Node.js First, install Node.js if it is not already installed. Download it from the official website: https://nodejs.org Check your installation: ```bash node -v ``` You should see a version number. --- ## Step 2 — Install pnpm Stellar Lab uses **pnpm** as the package manager. Install it with: ```bash npm install -g pnpm ``` Verify installation: ```bash pnpm -v ``` --- ## Step 3 — Clone the Repository Next, download the project from GitHub. ```bash git clone https://github.com/stellar/laboratory.git ``` Move into the directory: ```bash cd laboratory ``` --- ## Step 4 — Install Dependencies Run the following command to install all required packages: ```bash pnpm install ``` This will download all dependencies used by the project. --- ## Step 5 — Start the Development Server Run the development server: ```bash pnpm dev ``` Once the server starts, open your browser and visit: ``` http://localhost:3000 ``` You will now see the Stellar Lab interface running locally. --- # Building the Production Version If you want to build the project for production use, run: ```bash pnpm build ``` This generates optimized files in the build directory. To start the production server: ```bash pnpm start ``` The application will run using Node.js. --- # Project Tech Stack Stellar Lab is built using modern web technologies. Key technologies include: - Next.js - React - TypeScript - Sass - TanStack Query - Zustand These technologies allow the application to provide a fast and responsive user interface. --- # How to Use Stellar Lab (Beginner Tutorial) Once the application is running, you can begin experimenting with the network. Below is a simple example workflow. --- ## 1. Create a Test Account Open the account creation tool. Select: - Testnet Then create a new account. Test accounts are usually funded automatically using tools like **Friendbot**. --- ## 2. Build a Transaction Navigate to the **Transaction Builder**. Fill in the following fields: - Source account - Operation type - Destination account - Amount Then generate the transaction. --- ## 3. Sign the Transaction After building the transaction: 1. Add your secret key 2. Click **Sign Transaction** This will generate a signed transaction. --- ## 4. Submit the Transaction Click **Submit Transaction**. If everything is correct, the transaction will be sent to the network. You will see a confirmation message. --- # Viewing Transactions with Explorer When running Stellar tools locally, you may also access the **transaction explorer**. Example: ``` http://localhost:8000/lab/transactions-explorer ``` This allows you to view: - Recent transactions - Transaction hashes - Operation details It is helpful when debugging blockchain interactions. --- # Common Use Cases Developers use Stellar Lab for several purposes. ### Learning Blockchain Development Beginners can experiment with transactions without writing code. --- ### API Testing Developers can test API endpoints before integrating them into applications. --- ### Smart Contract Development Stellar Lab allows developers to deploy and invoke smart contracts directly. --- ### Debugging Transactions When something fails in a blockchain application, Stellar Lab helps identify the problem. --- # Troubleshooting Here are some common issues and solutions. --- ## Server Not Starting Check that Node.js and pnpm are installed correctly. Run: ```bash node -v pnpm -v ``` --- ## Dependency Errors Try reinstalling dependencies: ```bash pnpm install ``` --- ## Port Already in Use If port 3000 is busy, start the server on another port: ```bash PORT=4000 pnpm dev ``` --- ## Browser Not Loading Clear your browser cache or try another browser. --- # Updating Stellar Lab To update the project, run: ```bash git pull pnpm install ``` This will fetch the latest changes and update dependencies. --- # Contributing to the Project Developers can contribute to Stellar Lab by: - Submitting pull requests - Reporting bugs - Suggesting features The project is open source and welcomes community contributions. --- # Security Tips When working with blockchain tools, always follow these best practices: - Never expose private keys publicly - Use test networks for experiments - Avoid committing secrets to GitHub Security mistakes in blockchain applications can lead to permanent loss of funds. --- # Final Thoughts Stellar Lab is one of the best tools available for learning and developing on the ****. It provides an intuitive interface for: - Testing transactions - Deploying smart contracts - Exploring APIs - Understanding blockchain mechanics Whether you are a beginner or an experienced developer, Stellar Lab can help you **experiment safely and learn faster**. Running it locally gives you full control over the development environment and allows you to integrate it into your workflow. ---