SubSync

Keeps your chat synced and allows you to ask doubts separately, without affecting the main conversation.

SubSync turns AI chat into a multi-threaded workspace. Open a synced sidebar next to ChatGPT, Claude, or Gemini to explore tangents, definitions, experiments, and follow-up questions without breaking your main conversation flow. With Prompt Improver, you can rewrite prompts in one click before sending, so your requests are clearer, sharper, and easier for models to answer well. Key features: *Sync from selected text on supported AI pages *Chat Mode and Notes Mode in one sidebar *24-hour local conversation history with quick session switching *Prompt improvement before send *Markdown-friendly responses *Resizable sidebar with compact header handling at smaller widths *Multi-provider support with direct API mode or backend fallback *Optional custom model configuration *Boost clarity, reduce friction, and keep momentum while you think. Permissions notice: SubSync needs host permissions on supported AI pages to read conversation context and power Sync and Improve actions. Data is only sent when you trigger an action, such as asking in the sidebar or using Prompt Improver.