AI Text Tool for Editor.js

An AI-powered text generation tool for Editor.js that provides both block-level and inline text generation capabilities. Generate and refine content with AI assistance directly within your Editor.js editor.

Features

• Block Tool: Generate complete text blocks from prompts with streaming output
• Inline Tool: Select and transform existing text with AI (rewrite, summarize, expand, etc.)
• Real-time Streaming: Watch text generate in real-time with streaming support
• Interactive Preview: Review AI-generated changes before accepting them
• Intuitive UX: Clean, minimal interface with visual feedback and loading states
• Keyboard Shortcuts: Use Cmd/Ctrl+Enter to quickly submit prompts
• Multi-Framework Support: Works with Next.js, Vite, Vue, Nuxt, SvelteKit, Angular, and more
• Flexible Configuration: Easy API key setup from your app's environment
• Customizable: Configure placeholders, max tokens, and behavior

Installation

To install and use this tool in your Editor.js project, follow these steps:

1. Install the Tool via npm

npm install ai-text-tool

2. Set Up Your API Key

Add your OpenAI API key to your environment configuration based on your framework:

Framework	Environment Variable	Config File
Next.js	NEXT_PUBLIC_OPENAI_API_KEY	.env.local
Vite (React/Vue/Svelte)	VITE_OPENAI_API_KEY	.env
Create React App	REACT_APP_OPENAI_API_KEY	.env
Nuxt 3	VITE_OPENAI_API_KEY or runtime config	.env / nuxt.config.ts
SvelteKit	PUBLIC_OPENAI_API_KEY	.env
Angular	N/A (use environment.ts)	src/environments/environment.ts

Example for Next.js (.env.local):

NEXT_PUBLIC_OPENAI_API_KEY=sk-your-openai-api-key-here

Example for Vite/Nuxt (.env):

VITE_OPENAI_API_KEY=sk-your-openai-api-key-here

Example for SvelteKit (.env):

PUBLIC_OPENAI_API_KEY=sk-your-openai-api-key-here

Example for Angular (src/environments/environment.ts):

export const environment = {
  production: false,
  openaiApiKey: 'sk-your-openai-api-key-here'
};

3. Import and Configure the Tool

The tool provides both a block tool and an inline tool. Import and configure both in your Editor.js setup.

IMPORTANT: You must pass the API key explicitly from your app's environment to the tool's config.

Next.js Example (Recommended)

import AITextTool, { AITextInlineTool } from 'ai-text-tool';

// Get API key from Next.js environment
const apiKey = process.env.NEXT_PUBLIC_OPENAI_API_KEY;

const editor = new EditorJS({
  holder: 'editorjs',
  tools: {
    aiTextTool: {
      class: AITextTool,
      config: {
        apiKey: apiKey, // Pass explicitly
        promptPlaceholder: 'Enter a prompt...',
        generatedTextPlaceholder: 'Generated text will appear here...',
      },
    },
    aiInlineTool: {
      class: AITextInlineTool,
      config: {
        apiKey: apiKey, // Pass explicitly
      },
    },
  },
});

Vite Example

import AITextTool, { AITextInlineTool } from 'ai-text-tool';

// Get API key from Vite environment
const apiKey = import.meta.env.VITE_OPENAI_API_KEY;

const editor = new EditorJS({
  holder: 'editorjs',
  tools: {
    aiTextTool: {
      class: AITextTool,
      config: {
        apiKey: apiKey,
        promptPlaceholder: 'Enter a prompt...',
        generatedTextPlaceholder: 'Generated text will appear here...',
      },
    },
    aiInlineTool: {
      class: AITextInlineTool,
      config: {
        apiKey: apiKey,
      },
    },
  },
});

Create React App Example

import AITextTool, { AITextInlineTool } from 'ai-text-tool';

// Get API key from CRA environment
const apiKey = process.env.REACT_APP_OPENAI_API_KEY;

const editor = new EditorJS({
  holder: 'editorjs',
  tools: {
    aiTextTool: {
      class: AITextTool,
      config: {
        apiKey: apiKey,
        promptPlaceholder: 'Enter a prompt...',
        generatedTextPlaceholder: 'Generated text will appear here...',
      },
    },
    aiInlineTool: {
      class: AITextInlineTool,
      config: {
        apiKey: apiKey,
      },
    },
  },
});

Nuxt 3 / Vue 3 Example

import AITextTool, { AITextInlineTool } from 'ai-text-tool';

// Get API key from Nuxt runtime config
// Add to nuxt.config.ts: runtimeConfig.public.openaiApiKey
const config = useRuntimeConfig();
const apiKey = config.public.openaiApiKey;

// Or use Vite env vars in Nuxt
// const apiKey = import.meta.env.VITE_OPENAI_API_KEY;

const editor = new EditorJS({
  holder: 'editorjs',
  tools: {
    aiTextTool: {
      class: AITextTool,
      config: {
        apiKey: apiKey,
        promptPlaceholder: 'Enter a prompt...',
        generatedTextPlaceholder: 'Generated text will appear here...',
      },
    },
    aiInlineTool: {
      class: AITextInlineTool,
      config: {
        apiKey: apiKey,
      },
    },
  },
});

SvelteKit Example

import AITextTool, { AITextInlineTool } from 'ai-text-tool';
import { env } from '$env/dynamic/public';

// Get API key from SvelteKit public env
// Add PUBLIC_OPENAI_API_KEY to your .env file
const apiKey = env.PUBLIC_OPENAI_API_KEY;

// Or use static imports
// import { PUBLIC_OPENAI_API_KEY } from '$env/static/public';

const editor = new EditorJS({
  holder: 'editorjs',
  tools: {
    aiTextTool: {
      class: AITextTool,
      config: {
        apiKey: apiKey,
        promptPlaceholder: 'Enter a prompt...',
        generatedTextPlaceholder: 'Generated text will appear here...',
      },
    },
    aiInlineTool: {
      class: AITextInlineTool,
      config: {
        apiKey: apiKey,
      },
    },
  },
});

Angular Example

import AITextTool, { AITextInlineTool } from 'ai-text-tool';
import { environment } from './environments/environment';

// Get API key from Angular environment
// Add openaiApiKey to your environment.ts
const apiKey = environment.openaiApiKey;

const editor = new EditorJS({
  holder: 'editorjs',
  tools: {
    aiTextTool: {
      class: AITextTool,
      config: {
        apiKey: apiKey,
        promptPlaceholder: 'Enter a prompt...',
        generatedTextPlaceholder: 'Generated text will appear here...',
      },
    },
    aiInlineTool: {
      class: AITextInlineTool,
      config: {
        apiKey: apiKey,
      },
    },
  },
});

Configuration Options

The following configuration options are available for customization:

Option	Description	Default Value
apiKey	The API key for accessing the AI service (e.g., OpenAI API). Must be passed explicitly from your app's environment variables (e.g., process.env.NEXT_PUBLIC_OPENAI_API_KEY)	undefined (required)
promptPlaceholder	Placeholder text in the input field where users type the prompt	Enter a prompt...
generatedTextPlaceholder	Placeholder text for the output area where generated text will appear	Generated text will appear here...
readOnly	Whether the tool is in read-only mode (cannot be edited by the user)	false

Usage

Block Tool Usage

The block tool generates complete text blocks from scratch:

1. Click the "+" button in Editor.js to add a new block
2. Select AI Text Tool from the block menu
3. Enter your prompt in the input field (e.g., "Write a paragraph about climate change")
4. Press Enter or Cmd/Ctrl+Enter to generate
5. Watch the text stream in real-time
6. The generated text appears in the output area and can be edited

Inline Tool Usage

The inline tool transforms existing text with AI:

1. Select text in any Editor.js block (paragraph, heading, etc.)
2. Click the AI icon (✨) in the inline toolbar that appears
3. Enter a transformation prompt in the modal:
   • "Make this more professional"
   • "Summarize this"
   • "Expand on this idea"
   • "Fix grammar and spelling"
4. Press Enter or click the → button
5. Watch the transformation happen with a loading spinner
6. The transformed text appears highlighted in blue
7. Accept (green ✓) or Reject (red ×) the changes

Inline Tool Features

• Real-time Preview: See changes before accepting them
• Visual Feedback:
  • Loading spinner during generation
  • Blue highlight on generated text
  • Minimal accept/reject controls
• Context-Aware: Uses surrounding text for better results
• Non-Destructive: Original text preserved until you accept
• Keyboard Shortcuts: Cmd/Ctrl+Enter to submit prompts quickly

Data Structure

Block Tool Data

When the block tool is saved, it returns:

{
  "prompt": "Write a paragraph about climate change",
  "generatedText": "Climate change is one of the most pressing challenges..."
}

Inline Tool Data

The inline tool modifies existing text in place and doesn't create separate data structures. Changes are applied directly to the text content of the block.

Requirements

• Editor.js v2.0.0 or higher
• OpenAI API Key (for text generation)
• Modern browser with ES6 support

Styling

The tool includes default styles via index.css. The CSS includes:

• Loading spinner animations
• Modal styling for the inline tool
• Accept/reject button styles
• Responsive design for mobile devices

Import the styles in your project:

import 'ai-text-tool/index.css';

API Reference

Block Tool

{
  class: AITextTool,
  config: {
    apiKey?: string,             // Optional: OpenAI API key (auto-detected from env if not provided)
    promptPlaceholder?: string,  // Optional: Prompt input placeholder
    generatedTextPlaceholder?: string, // Optional: Output area placeholder
    readOnly?: boolean          // Optional: Read-only mode (default: false)
  }
}

Inline Tool

{
  class: AITextInlineTool,
  config: {
    apiKey?: string,   // Optional: OpenAI API key (auto-detected from env if not provided)
    maxTokens?: number // Optional: Maximum tokens for generation (default: 8000)
  }
}

Contributing

We welcome contributions to this tool! To contribute:

1. Fork the repository
2. Create a feature branch
3. Implement your changes and test them
4. Open a pull request with a description of your changes

License

This project is licensed under the ISC License - see the LICENSE file for details.

Support

For issues, questions, or feature requests, please open an issue on the GitHub repository.

Changelog

v1.2.0

• Environment Variable Auto-detection: Automatically detects OpenAI API key from framework-specific environment variables (Next.js, Vite, Create React App)
• Made apiKey config optional - can now omit it entirely if using environment variables
• Added cross-framework compatibility for easier setup

v1.1.0

• Added inline tool for transforming selected text
• Implemented real-time streaming for both block and inline tools
• Added interactive preview with accept/reject controls
• Improved UX with loading states and visual feedback
• Added keyboard shortcuts (Cmd/Ctrl+Enter)
• Refined modal UI with minimal design
• Context-aware generation using surrounding text

v1.0.x

• Initial release with block tool
• Basic AI text generation functionality