GBS

Github Branch Scanner - A powerful web-based tool to scan and manage default branches across GitHub repositories.

Features

• Single repository scan
• Bulk repository scan (all repos from user/organization)
• View all branches with default branch highlighting
• Change default branch individually or in bulk
• Real-time progress tracking
• Token and anonymous authentication support

Quick Start

1. Open n1709.github.io/GBS in your browser
2. Choose authentication mode (token recommended for full features)
3. Select scan mode (single repo or all repos)
4. Enter repository or username
5. Click "Start Investigation"

Bulk Change Default Branch

1. Complete a scan with token authentication
2. Enter target branch name
3. Click "Change All Defaults"
4. Monitor progress

GitHub Token Setup

1. Go to GitHub Settings > Developer settings > Personal access tokens
2. Generate new token with repo scope
3. Copy and paste in the tool

Requirements

• Modern web browser
• GitHub token (optional for public repos, required for private and bulk changes)
• Internet connection

Limitations

• Anonymous: 60 requests/hour
• With token: 5000 requests/hour
• Bulk change requires admin access to repositories
• Target branch must exist before changing

Tech Stack

Pure HTML/CSS/JavaScript with GitHub REST API v3

License

MIT - See LICENSE file for details