Slash Highlight — Obsidian Plugin

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Visually highlight words in your notes with two mechanisms: trigger symbols (such as / or @) and keywords. Everything is configurable from Obsidian’s settings panel—no code required.

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What it does

🔣 Trigger symbols

The word that follows a configured symbol gets its own background and text colors.

Run /command in the terminal
Mention @user in the thread

Only activates when the symbol is preceded by a space or the start of a line, so URLs (https://example.com) and emails (user@domain.com) are not colored.

🔤 Keywords

Specific words colored anywhere in the text with a custom text color, case-insensitive.

Today I used claude to write this note in obsidian.

Both features work together in Live Preview and Reading View.

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Installation

Obsidian 1.0 or later. No external dependencies.

1. Enable community plugins

Settings → Community plugins → Turn off restricted mode

2. Copy the plugin folder into your vault

YourVault/
└── .obsidian/
    └── plugins/
        └── slash-highlight/
            ├── main.js
            └── manifest.json

If you don’t see the .obsidian folder, show hidden files:

• Mac: Cmd + Shift + .
• Windows: View → Show hidden files

3. Enable it in Obsidian

Settings → Community plugins → Slash Highlight → toggle on

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Configuration

Open the panel at Settings → Slash Highlight.

Section: Trigger symbols

Each symbol has three controls:

Field	Description
Symbol	The trigger character (single character: /, @, #, !, …)
Background color	Background color of the highlighted word
Text color	Text color on top of the background

Defaults:

• / → magenta background, white text
• @ → orange background, white text

Section: Keywords

Each entry has two controls:

Field	Description
Word	Text to match (case-insensitive)
Color	Text color

Defaults: claude, obsidian, nota.

Changes apply instantly—no restart needed.

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Usage examples

## Monday meeting

Talk to @juan about the /alpha project.
Review claude’s note on the architecture.
Push changes to /production before Friday.

• @juan → orange background
• /alpha and /production → magenta background
• claude → violet text
• nota → orange text

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Updating

Replace main.js inside .obsidian/plugins/slash-highlight/ with the new version and click Reload plugins in the community plugins panel. Your settings are preserved.

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License

MIT — free to use, modify, and distribute.