Side-by-Side AI

Multi-AI prompt broadcast with multi-window tiling and local session history.

Warning: Side-by-Side AI is a web UI integration extension, not a standalone AI service or built-in chat UI. It works by opening supported AI websites inside a split-screen workspace, so you must sign in to each AI website in advance before using the extension. Side-by-Side AI lets you use multiple AI chat websites in one split-screen workspace. Features: - Open multiple AI sites side by side - Broadcast one prompt to selected sites - @ mention to target specific sites - # focus mode to expand one site quickly - Combine the latest visible replies from active AI panes into one follow-up prompt - Start a new chat across currently opened sites - Save local prompt history with session recall - Restore previous site session URLs after reload - Add custom sites and request permission per site at runtime - Support image paste/drag upload on supported sites - Support light/dark theme and language options Privacy: - No account signup is required for the extension itself - No remote server is required for core features - Data is stored locally in Chrome storage - Custom sites are only enabled after user-granted site permission Update notes for v0.3.1: - Fixed image paste/drag upload delivery in Legacy Mode for Gemini - Improved attachment handoff reliability for supported sites in the split-pane workspace - Verified image paste upload behavior for Gemini, Claude, and ChatGPT in Legacy Mode Update notes for v0.3.0: - Added Compatibility Mode for AI sites that do not work reliably in the default split-pane view - Added Perplexity support in Compatibility Mode - Added a collapsible Legacy Mode input bar for more screen space - Added a custom follow-up template for Combine Latest when the prompt box is empty - Improved Compatibility Mode dock sizing and restored settings/history panel behavior - Improved default site guidance and mode descriptions - Fixed Legacy Mode input collapse/restore positioning - Fixed Claude response extraction in Legacy Mode - Improved runtime routing and response collection reliability across supported sites Update notes for v0.2.0: - Added one-click latest-reply combination for follow-up prompting - Improved send progress feedback across sites - Improved multiline prompt injection reliability - Improved session restore and local history capture - Fixed input bubble dragging and resizing behavior