Mastodon Hashtag Sync is a specialized web tool designed to help users maintain their personal interests across different parts of the fediverse by synchronizing followed hashtags between multiple Mastodon accounts.

The main features of this tool include:

• Cross-Instance Synchronization: The tool allows users to seamlessly pull followed hashtags from a "Source Server" and push them to a "Destination Server."

• Selective Syncing: Users have full control over which data is moved; the interface allows you to view a list of hashtags from the source and select or deselect specific tags before initiating the transfer.

• Simple Connection Workflow: The process is broken down into easy steps: connect the source, connect the destination, select the tags, and complete the sync.

• Privacy-First Architecture: For security and privacy, the tool stores sessions locally in your browser, ensuring that no sensitive data is transmitted to external servers during the process.

• Open and Transparent: The project is part of the public domain and its code is hosted on GitHub, allowing for community inspection and contribution.