What is the project about?

Midscene.js is an open-source project that allows AI to operate a web browser. It enables users to control web pages, validate content, and extract data using natural language instructions.

What problem does it solve?

It simplifies web automation by allowing users to interact with web pages using natural language instead of writing complex code. It bridges the gap between high-level user intent and low-level browser interactions. It also improves the debugging experience for automation.

What are the features of the project?

• Natural Language Interaction: Control the browser with natural language commands.
• Chrome Extension Experience: Provides a Chrome extension for a no-code, immediate experience.
• Puppeteer/Playwright Integration: Integrates with popular browser automation tools.
• Support Private Deployment: Supports private deployment of the UI-TARS model.
• Support General Models: Supports general large models like GPT-4o and Claude.
• Visual Reports for Debugging: Offers visual reports and a playground for debugging.
• Support Caching: Caches tasks for improved efficiency on subsequent executions.
• Open Source: Fully open-source and MIT licensed.
• Understand UI, JSON Format Responses: Can understand UI elements and return data in JSON format.
• Intuitive Assertions: Allows users to express assertions in natural language.

What are the technologies used in the project?

• JavaScript (primary language)
• Puppeteer (browser automation library)
• Playwright (browser automation library)
• YAML (for script configuration)
• AI Models:
  • UI-TARS (open-source, specialized for UI automation)
  • General LLMs: GPT-4o, Gemini 1.5 Pro, Qwen-vl-max-latest
• Chrome Extension

What are the benefits of the project?

• Simplified Automation: Makes web automation accessible to users without coding expertise.
• Improved Debugging: Visualized reports and a playground greatly enhance the debugging process.
• Flexibility: Offers multiple integration options (Chrome extension, Puppeteer, Playwright).
• Open Source and Customizable: Provides flexibility and control through open-source code and private deployment options.
• Data Privacy: The option to use the self-hosted UI-TARS model enhances data privacy.
• Efficiency: Caching improves the speed of repeated tasks.
• Integration with Javascript: Seamlessly integrates with Javascript.

What are the use cases of the project?

• Automated Web Testing: Testing website functionality and UI elements.
• Data Scraping: Extracting data from websites in a structured format.
• Workflow Automation: Automating repetitive tasks on websites (e.g., filling forms, posting content).
• Content Validation: Checking website content for accuracy or specific criteria.
• Task Orchestration: Using JS code to drive task orchestration.
• Information Collection: Collecting information from multiple websites.