RightClickGPT

RightClickGPT is a Chrome extension for sending selected webpage text to ChatGPT or t3.chat from the right-click menu. You can keep multiple prompt presets, choose where each prompt opens, and optionally reuse an existing chat tab or conversation.

Features

• Right-click context menu for selected text.
• ChatGPT and t3.chat provider support.
• Multiple named prompt presets with custom prompt formats.
• Collapsed preset editor with chevrons, per-preset enable toggles, and delete confirmation.
• Global default behavior for opening prompts in a new tab or in Chrome's side panel.
• Per-preset behavior overrides: Default, New tab, or Sidechat.
• Optional conversation URL or legacy chat ID for sending prompts to a specific conversation.
• Optional reuse of an existing ChatGPT or t3.chat tab.
• Sidechat panel with embedded chat, reload control, and an "Open tab" fallback.
• Popup and full options page for configuration.
• Autosaved settings stored in Chrome local extension storage.
• Prompt URL support for fresh chats, with content-script automation for existing tabs, configured conversations, long ChatGPT prompts, and submission fallback.
• t3.chat session bridge for smoother prompt submission in t3.chat.

Installation

1. Clone or download this repository.
2. Open Chrome and go to chrome://extensions/.
3. Turn on Developer mode.
4. Click Load unpacked.
5. Select the RightClickGPT folder.
6. Pin RightClickGPT to the Chrome toolbar if you want quick access to the popup settings.

Usage

Send Selected Text

1. Select text on a webpage.
2. Right-click the selection.
3. Choose a RightClickGPT preset.
   • If one enabled preset is available, it appears directly in the context menu.
   • If multiple enabled presets are available, they appear under the provider menu, such as Ask ChatGPT or Ask t3.chat.
4. RightClickGPT formats the preset by replacing <prompt> with the selected text, then opens or updates the configured chat target.

Configure Presets

Open the toolbar popup or the extension options page.

Click Add preset to create a new preset. New presets open expanded so you can name them and edit the prompt format immediately.

For each preset:

• Click the chevron to expand or collapse the preset details.
• Edit the preset name shown in the context menu.
• Write a prompt format that includes <prompt>.
• Choose a behavior:
  • Default uses the global default behavior.
  • New tab opens the prompt in a browser tab.
  • Sidechat opens the prompt in Chrome's side panel.
• Use the on/off toggle to keep a preset without showing it in the context menu.
• Expand a preset and click the trash icon to delete it.

Settings autosave shortly after changes. Enabled presets must have a name and include <prompt> to be usable.

Choose a Provider

Use Chat provider to choose where prompts are sent:

• ChatGPT sends prompts to chatgpt.com.
• t3.chat (beta) sends prompts to t3.chat.

You may need to be signed in to the selected provider before prompts can submit successfully.

Choose Opening Behavior

Use Default behavior to choose what presets do when their behavior is set to Default:

• New tab opens a provider tab.
• Sidechat opens Chrome's side panel and loads the provider inside it.

Each preset can override this default.

Reuse an Existing Chat Tab

Turn on Use existing ChatGPT tab or Use existing t3.chat tab to send prompts to the first matching open provider tab. If no matching tab exists, RightClickGPT opens the configured target instead.

Send to a Specific Conversation

Use Conversation URL to target an existing conversation. You can enter:

• A full ChatGPT or t3.chat conversation URL.
• A legacy bare chat ID.

Leave it blank to start a new chat each time.

Use Sidechat

When a prompt uses Sidechat, RightClickGPT opens Chrome's side panel for the current tab and loads the prompt there.

The Sidechat panel includes:

• An embedded provider frame.
• A reload button.
• An Open tab link for opening the same prompt in a normal browser tab.
• A status message if Chrome cannot open the side panel for the current page.

How Prompt Delivery Works

For fresh chats, RightClickGPT builds provider URLs with the prompt in the q query parameter. For configured conversations, existing tabs, long ChatGPT prompts, or cases where the provider does not submit automatically, the extension injects content.js to fill and submit the provider composer.

Files

• manifest.json: Chrome extension manifest, permissions, popup, options page, side panel, and content script registration.
• background.js: Context menu setup, preset filtering, prompt formatting, tab routing, side panel routing, and chat URL normalization.
• options.html: Full options page.
• popup.html: Toolbar popup settings UI.
• options.js: Settings UI behavior, preset editing, autosave, validation, provider selection, and conversation URL normalization.
• content.js: ChatGPT and t3.chat composer detection, prompt insertion, and submission fallback.
• sidechat.html: Chrome side panel UI.
• sidechat.js: Sidechat frame loading, reload handling, open-tab fallback, and status updates.
• t3-bridge.js: t3.chat WebSocket session patch used by the t3 integration.
• rules/chatgpt-embed.json: Header rules that allow supported chat providers to load in the side panel frame.
• logo16.png, logo48.png, logo128.png: Extension icons.