Notion Inline $ → Equation Converter

A Chrome extension to convert $...$ (and $$...$$) into true Notion inline equations by simulating the real Notion workflow.

---

Features

• Detects inline math wrapped in $...$ or $$...$$ inside editable Notion blocks.

• Skips code blocks, already-converted equations, and escaped \$.

• Converts math into native inline equations by simulating key presses.

• Auto-advances to the next equation after each conversion.

• Lightweight on-screen HUD with minimal controls.

• Three ways to trigger:

  • Keyboard: Windows/Linux Ctrl+M, macOS Command+Shift+M
  • Toolbar button: Click the extension icon
  • Right-click menu: “Convert $…$ to inline equations”

---

Installation

1. Download or clone this repository.

2. Open Chrome and go to:

   chrome://extensions/
   

3. Enable Developer mode.

4. Click Load unpacked and select the folder with manifest.json, background.js, and content.js.

Notes:

• Permissions used: activeTab, scripting, and contextMenus.
• Works on notion.so and custom notion.site domains.

---

Usage

1. Open any Notion page and write something like:

   The equation of a circle is $x^2 + y^2 = r^2$.
   

2. Trigger the converter using any of the following:

   • Keyboard:

     • Windows/Linux: Ctrl+M
     • macOS: Command+Shift+M (avoids the OS-reserved Command+M)

   • Toolbar button: Click the extension icon in the Chrome toolbar.

   • Right-click menu: Choose “Convert $…$ to inline equations”.

3. Each trigger converts the next $…$ to an inline equation and advances. Repeat to process the whole page.

HUD controls during conversion

• ESC → Exit
• B → Step back one target
• Cmd/Ctrl+Shift+E → Use Notion’s native inline-equation hotkey; auto-advance continues

---

Customizing the Shortcut

You can change shortcuts at:

chrome://extensions/shortcuts

If Command+Shift+M conflicts on macOS, pick an alternative (e.g., Option+M or Ctrl+Shift+M).

---

Example

Before

E = mc^2  can be written as $E=mc^2$ in Notion.

After

• $E=mc^2$ becomes a proper Notion inline equation block.

---

Troubleshooting

• If the keyboard shortcut doesn’t fire, set it explicitly in chrome://extensions/shortcuts.
• The toolbar button and right-click menu are reliable fallbacks on pages or systems where shortcuts are blocked.