Note:

The author is busy, so bugs haven't been fixed yet.

• If a mode finishes but the instruction bar remains, please press ESC.
• If it takes a long time and nothing converts, press B.
• Mode 3 is currently broken.

Notion Equation Converter (Inline & Block)

A Chrome extension to convert LaTeX-style math into native Notion equations. It supports three modes: inline conversion, block conversion, and promoting inline equations to block equations.

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Features

Mode 1: Inline Conversion ($...$)

• Scans for $ math $ or $$ math $$ inside text blocks.
• Converts them into Notion's inline equation format.
• Handles multiple equations per block.
• Trigger: Ctrl+M (macOS: Cmd+Shift+M)

Mode 2: Block Conversion ($$...$$)

• Scans for blocks that contain only a display equation wrapped in $$...$$.
• Converts the entire block into a Notion Block Equation.
• Trigger: Ctrl+Shift+B (macOS: Cmd+Shift+B)

Mode 3: Inline-to-Block Promotion

• Scans for text blocks that contain only a single existing inline equation.
• Converts them into a Notion Block Equation.
• Useful for fixing equations that were pasted or formatted incorrectly as inline.
• Trigger: Ctrl+Shift+X (macOS: Cmd+Shift+X)

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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 containing manifest.json.

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Usage

Note: The author is busy, so bugs haven't been fixed yet.

• If a mode finishes but the instruction bar remains, please press ESC.
• If it takes a long time and nothing converts, press B.
• Mode 3 is currently broken.

1. Inline Mode

Write your math using LaTeX syntax wrapped in dollar signs:

The solution is $x = \frac{-b \pm \sqrt{b^2-4ac}}{2a}$.

Press Ctrl+M (or use the extension menu). The extension will walk through the page, converting each instance.

2. Block Mode

Write a block containing only a double-dollar equation:

$$ \sum_{i=0}^n i^2 = \frac{(n^2+n)(2n+1)}{6} $$

Press Ctrl+Shift+B. The extension will convert these text blocks into proper Notion Equation Blocks.

3. Inline-to-Block Mode

If you have a block that is just a single inline equation (e.g., imported content), press Ctrl+Shift+X to convert it to a full Equation Block.

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HUD & Controls

When a conversion mode is active, a HUD appears in the top-right corner.

• ESC: Stop the current process.
• B (Inline mode): Step back to the previous equation.

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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.

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Troubleshooting

• If the keyboard shortcut doesn’t fire, set it explicitly in chrome://extensions/shortcuts.
• Reload Required: If you just installed the extension, refresh your Notion tab before using it.