Selection Toolbar - Smart Chrome Extension - AI - Sell Project

Project Overview

**Selection Toolbar** is a Chrome extension that shows a contextual toolbar when users select text on any webpage. It provides AI, translation, dictionary, and productivity actions based on the selected content.---**Code & Setup**- ~16,500 lines of code - Built with **React 19** and **TypeScript** - Published on the **Chrome Web Store** (transferable) - Includes a landing page built with **Astro 5**, **Tailwind CSS**, and **GSAP** - **PostHog** analytics already integrated ---**AI Capab...

Detailed Description

**Selection Toolbar** is a Chrome extension that shows a contextual toolbar when users select text on any webpage. It provides AI, translation, dictionary, and productivity actions based on the selected content.


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**Code & Setup**

- ~16,500 lines of code

- Built with **React 19** and **TypeScript**

- Published on the **Chrome Web Store** (transferable)

- Includes a landing page built with **Astro 5**, **Tailwind CSS**, and **GSAP**

- **PostHog** analytics already integrated


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**AI Capabilities**

- Send selected text to **ChatGPT** with custom prompts

- Built-in **Google Gemini** assistant


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**Text Utilities**

- **Google Translate** with automatic language detection

- **Dictionary lookup** (Merriam-Webster)

- **Calculator** that detects math expressions in selected text

- **Text-to-speech** using the Chrome TTS API


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**Productivity Actions**

- Copy text to clipboard

- Google search

- Wikipedia lookup

- URL detection and open

- Share via Web Share API


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**Technical Details**

- Frontend: React 19, TypeScript 5.8, Vite 7

- Styling: Tailwind CSS 4, shadcn/ui

- State management: Valtio

- Extension: Chrome Manifest V3, CRXJS

- Landing page: Astro 5, GSAP


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The project is being transferred due to time constraints and limited capacity to actively grow or monetize it.


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**Included in Transfer**

- Full GitHub repository access

- Chrome Web Store developer transfer

- Landing page source code

- All assets and icons

- Optional 30-minute onboarding call


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**Links**

- Landing page: https://selection-toolbar.r44j.dev

- Chrome Web Store: available on request

Content Freshness & Updates

Project Timeline

Created: January 7, 2026 at 10:04 AM (1 week ago)

Last Updated: January 16, 2026 at 12:43 AM (1 day ago)

Update Status: Updated 1.3827662814815 days ago - Recent updates

Version Information

Current Version: 1.0 (Initial Release)

Development Phase: Production Ready - Market validated and ready for acquisition

Activity Indicators

Project Views: 58 total views - Active engagement

Content Status: Published and publicly available

Content Freshness Summary

This project information was last updated on January 16, 2026 and represents the current state of the project. The content is very fresh and reflects recent developments.

Visual Content & Media

Project Screenshots & Interface

The following screenshots showcase the visual design and user interface of Selection Toolbar - Smart Chrome Extension - AI:

Screenshot 1: Main Dashboard & Primary Interface

This screenshot displays the main dashboard and primary user interface of the application, showing the overall layout, navigation elements, and core functionality. The interface demonstrates the modern design principles and user experience patterns implemented using Javascipt,TypeScript,REACT,Vite,TAILWIND,ShadCN,valtio,Manifest V3,crxjs,astrojs.

Project Demonstration Videos

The following videos provide visual demonstrations of Selection Toolbar - Smart Chrome Extension - AI in action:

Demo Video 1: Main Functionality Walkthrough

This video demonstrates the main functionality and core features of the application, providing a comprehensive overview of how the system works. The video showcases the saas application's technical implementation using Javascipt,TypeScript,REACT,Vite,TAILWIND,ShadCN,valtio,Manifest V3,crxjs,astrojs and user interface design, providing viewers with a clear understanding of the project's capabilities and value proposition.

Video URL: https://www.youtube.com/watch?v=LRq9mg6Db7A

Live Demo & Interactive Experience

Live Demo URL: https://selection-toolbar.r44j.dev

Experience Selection Toolbar - Smart Chrome Extension - AI firsthand through the live demo. This interactive demonstration allows you to explore the application's features, test its functionality, and understand its user experience. The live demo showcases the saas application's technical capabilities implemented with Javascipt,TypeScript,REACT,Vite,TAILWIND,ShadCN,valtio,Manifest V3,crxjs,astrojs and real-world performance, providing a comprehensive understanding of the project's value and potential.

Visual Content Summary

This project includes 1 screenshot and 1 demonstration video plus a live demo, providing comprehensive visual documentation of the saas application. The media content demonstrates the project's technical implementation using Javascipt,TypeScript,REACT,Vite,TAILWIND,ShadCN,valtio,Manifest V3,crxjs,astrojs and user interface design, showcasing both the visual appeal and functional capabilities of the solution.

Technical Specifications & Architecture

Technology Stack & Implementation

Primary Technologies: Javascipt,TypeScript,REACT,Vite,TAILWIND,ShadCN,valtio,Manifest V3,crxjs,astrojs

Technology Count: 10 different technologies integrated

Implementation Complexity: High - Multi-technology stack requiring extensive integration expertise

Technology Analysis

Javascipt: Modern technology component for enhanced functionality and performance
TypeScript: Modern technology component for enhanced functionality and performance
REACT: Modern JavaScript library for building user interfaces with component-based architecture
Vite: Modern technology component for enhanced functionality and performance
TAILWIND: Modern technology component for enhanced functionality and performance
ShadCN: Modern technology component for enhanced functionality and performance
valtio: Modern technology component for enhanced functionality and performance
Manifest V3: Modern technology component for enhanced functionality and performance
crxjs: Modern technology component for enhanced functionality and performance
astrojs: Modern technology component for enhanced functionality and performance

System Architecture & Design

Architecture Type: Saas Application

Architecture Pattern: Modern Software Architecture with scalable design patterns

Scalability & Performance

Scalability Level: Standard - Scalable architecture ready for growth

Security & Compliance

Security Level: Commercial-grade security for business applications

Security Technologies: Modern security practices with component isolation and secure data handling

Data Protection: Standard data protection practices for user information and application data

Integration & API Capabilities

Live Integration: https://selection-toolbar.r44j.dev - Active deployment with real-world integration

API Technologies: Modern API development with standard RESTful practices

Integration Readiness: Production-ready for business integration and enterprise deployment

Development Environment & Deployment

Deployment Status: Live deployment with active user base

Technical Summary

This saas project demonstrates advanced technical implementation using Javascipt,TypeScript,REACT,Vite,TAILWIND,ShadCN,valtio,Manifest V3,crxjs,astrojs with production-ready deployment. The technical foundation supports immediate business integration with modern security practices and scalable architecture.

Common Questions & Use Cases

How to Build a saas Project Like This

Technology Stack Required: Javascipt,TypeScript,REACT,Vite,TAILWIND,ShadCN,valtio,Manifest V3,crxjs,astrojs

Development Approach: Build a scalable software solution with modern architecture patterns and user-centered design.

Step-by-Step Development Guide

  1. Planning Phase: Define requirements, user stories, and technical architecture
  2. Technology Setup: Configure Javascipt,TypeScript,REACT,Vite,TAILWIND,ShadCN,valtio,Manifest V3,crxjs,astrojs development environment
  3. Core Development: Implement main functionality and user interface
  4. Testing & Optimization: Test performance, security, and user experience
  5. Deployment: Deploy to production with monitoring and analytics
  6. Monetization: Implement revenue streams and business model

Best Practices for saas Development

Technology-Specific Best Practices

Javascipt Best Practices: Follow modern development practices, implement proper error handling, use version control effectively, and optimize for performance and security.
TypeScript Best Practices: Follow modern development practices, implement proper error handling, use version control effectively, and optimize for performance and security.
REACT Best Practices: Use functional components with hooks, implement proper state management, follow component composition patterns, and optimize with React.memo and useMemo.
Vite Best Practices: Follow modern development practices, implement proper error handling, use version control effectively, and optimize for performance and security.
TAILWIND Best Practices: Follow modern development practices, implement proper error handling, use version control effectively, and optimize for performance and security.
ShadCN Best Practices: Follow modern development practices, implement proper error handling, use version control effectively, and optimize for performance and security.
valtio Best Practices: Follow modern development practices, implement proper error handling, use version control effectively, and optimize for performance and security.
Manifest V3 Best Practices: Follow modern development practices, implement proper error handling, use version control effectively, and optimize for performance and security.
crxjs Best Practices: Follow modern development practices, implement proper error handling, use version control effectively, and optimize for performance and security.
astrojs Best Practices: Follow modern development practices, implement proper error handling, use version control effectively, and optimize for performance and security.

General Development Best Practices

  • Code Quality: Write clean, maintainable code with proper documentation
  • Security: Implement authentication, authorization, and data protection
  • Performance: Optimize for speed, scalability, and resource efficiency
  • User Experience: Focus on intuitive design and responsive interfaces
  • Testing: Implement comprehensive testing strategies
  • Deployment: Use CI/CD pipelines and monitoring systems

Use Cases & Practical Applications

Target Audience & Use Cases

Business Use Cases: This project is ideal for businesses looking to implement a ready-made solution. Perfect for entrepreneurs, startups, or established companies seeking saas solutions.

Comparison & Competitive Analysis

Why Javascipt,TypeScript,REACT,Vite,TAILWIND,ShadCN,valtio,Manifest V3,crxjs,astrojs?

This project uses Javascipt,TypeScript,REACT,Vite,TAILWIND,ShadCN,valtio,Manifest V3,crxjs,astrojs because:

  • Technology Synergy: The combination of Javascipt,TypeScript,REACT,Vite,TAILWIND,ShadCN,valtio,Manifest V3,crxjs,astrojs creates a powerful, integrated solution
  • Modern Frontend: Provides reactive, component-based user interfaces
  • Community Support: Large, active communities for ongoing development and support
  • Future-Proof: Modern technologies with long-term viability and updates

Competitive Advantages

  • Modern Tech Stack: Javascipt,TypeScript,REACT,Vite,TAILWIND,ShadCN,valtio,Manifest V3,crxjs,astrojs provides competitive technical advantages
  • Ready for Market: Production-ready solution with immediate deployment potential

Learning Resources & Next Steps

Learn Javascipt,TypeScript,REACT,Vite,TAILWIND,ShadCN,valtio,Manifest V3,crxjs,astrojs

To understand and work with this project, consider learning:

  • Javascipt: Official documentation and community learning resources
  • TypeScript: Official documentation and community learning resources
  • REACT: Official React documentation, tutorials, and community resources
  • Vite: Official documentation and community learning resources
  • TAILWIND: Official documentation and community learning resources
  • ShadCN: Official documentation and community learning resources
  • valtio: Official documentation and community learning resources
  • Manifest V3: Official documentation and community learning resources
  • crxjs: Official documentation and community learning resources
  • astrojs: Official documentation and community learning resources

Hands-On Learning

Try It Yourself: https://selection-toolbar.r44j.dev

Experience the project firsthand to understand its functionality, user experience, and technical implementation. This hands-on approach provides valuable insights into real-world application development.

Project Details

Project Type: Saas

Listing Type: Sell

Technology Stack: Javascipt,TypeScript,REACT,Vite,TAILWIND,ShadCN,valtio,Manifest V3,crxjs,astrojs

What's Included

source_code,data,design

Reason for Selling

<p>I am busy with other things and no longer have time to maintain this project.</p>

Technical Architecture

Technology Stack & Architecture

This saas project is built using a modern technology stack consisting of Javascipt,TypeScript,REACT,Vite,TAILWIND,ShadCN,valtio,Manifest V3,crxjs,astrojs. The architecture leverages these technologies to create a production-ready solution that can handle real-world usage scenarios.

Architecture Type: Saas - This indicates the project follows modern software architecture patterns.

Technical Complexity: Multi-technology stack requiring integration expertise

Business Context & Market Position

Business Model & Revenue Potential

This project represents a saas business opportunity with established market presence. The project shows strong potential for revenue generation based on its user base and market positioning.

Acquisition Opportunity: <p>I am busy with other things and no longer have time to maintain this project.</p> This presents an excellent opportunity for acquisition by someone looking to continue development or integrate the technology into their existing business.

Development Context & Timeline

Project Development Timeline

This project was created on January 7, 2026 and last updated on January 16, 2026. The project has been in development for approximately 0.3 months, representing 9.9927315627431 days of development time.

Technical Implementation Effort

Implementation Complexity: High - The project uses 10 different technologies (Javascipt,TypeScript,REACT,Vite,TAILWIND,ShadCN,valtio,Manifest V3,crxjs,astrojs), requiring extensive integration work and cross-technology expertise.

Market Readiness & Maturity

Production Readiness: This project is market-ready and has been validated through real user engagement. The codebase is stable and ready for immediate deployment or further development.

Competitive Analysis & Market Position

Market Differentiation

Technology Advantage: This project leverages Javascipt,TypeScript,REACT,Vite,TAILWIND,ShadCN,valtio,Manifest V3,crxjs,astrojs to create a unique solution in the saas space. The technology stack provides cutting-edge technical implementation that sets it apart from traditional solutions.

Market Opportunity Assessment

Competitive Advantages

  • Proven Market Success: Established user base and revenue stream provide immediate competitive advantage
  • Technical Maturity: Production-ready codebase with real-world testing and optimization
  • Market Validation: User engagement and revenue data prove market demand
  • Modern Technology Stack: Javascipt,TypeScript,REACT,Vite,TAILWIND,ShadCN,valtio,Manifest V3,crxjs,astrojs provides scalability, maintainability, and future-proofing

Pricing Information

Offer Price: $500 USD

About the Creator

Developer: User ID 208525

Project Links

Live Demo: https://selection-toolbar.r44j.dev

Key Features

  • Built with modern technologies: Javascipt,TypeScript,REACT,Vite,TAILWIND,ShadCN,valtio,Manifest V3,crxjs,astrojs
  • Ready for immediate acquisition

Frequently Asked Questions

What is this project about?

Selection Toolbar - Smart Chrome Extension - AI is a saas project that **Selection Toolbar** is a Chrome extension that shows a contextual toolbar when users select text on any webpage. It provides AI, translation, dictionary, and productivity actions based on the select....

How much does this project cost?

This project is listed for sale at $minimum USD. There's also an offer price of $500 USD. The price reflects the project's current revenue, user base, and market value.

What's included when I buy this project?

source_code,data,design You'll receive everything needed to run and maintain the project.

Why is the owner selling this project?

<p>I am busy with other things and no longer have time to maintain this project.</p> This is a common reason for selling successful side projects.

What technologies does this project use?

This project is built with Javascipt,TypeScript,REACT,Vite,TAILWIND,ShadCN,valtio,Manifest V3,crxjs,astrojs. These technologies were chosen for their suitability to the project's requirements and the developer's expertise.

Can I see a live demo of this project?

Yes! You can view the live demo at https://selection-toolbar.r44j.dev. This will give you a better understanding of the project's functionality and user experience.

How do I contact the project owner?

You can contact the project owner through SideProjectors' messaging system. Click the "Contact" button on the project page to start a conversation about this project.

Is this project still actively maintained?

Since this project is for sale, the current owner may be looking to transfer maintenance responsibilities to the buyer.