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chartjs-tooltips

Configure and customize Chart.js v4.5.1 tooltips with callbacks and HTML.

Updated Aug 27, 2026
Search Tags:#data visualization#frontend#javascript#customization#tooltips#chartjs
One-click install
npx skills add https://github.com/sjnims/chartjs-expert --skill chartjs-tooltips
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: chartjs-tooltips
Source: https://github.com/sjnims/chartjs-expert/tree/main/skills/chartjs-tooltips
Command: npx skills add https://github.com/sjnims/chartjs-expert --skill chartjs-tooltips

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) and assets (resource) components.

What problem does it solve?

This Skill helps users understand and implement advanced customization for Chart.js tooltips, enabling them to display data clearly and interactively.

Core Features & Use Cases

  • Tooltip Configuration: Customize appearance, interaction modes, and content.
  • Callback Customization: Dynamically format tooltip text, titles, and footers.
  • HTML Tooltips: Create fully custom, rich HTML tooltips for advanced UIs.
  • Use Case: Displaying sales data with currency formatting and conditional styling in tooltips based on performance metrics.

Quick Start

Configure Chart.js tooltips to display values as currency using the label callback.

Frequently Asked Questions about chartjs-tooltips

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I configure Chart.js tooltips to format values as currency?▼

Configure Chart.js tooltips to display currency by using the `label` callback function within the tooltip configuration object. This allows you to dynamically intercept and format the displayed data values as localized currency strings.

Can I create custom HTML tooltips in Chart.js instead of the default canvas ones?▼

Yes, you can implement external HTML tooltips in Chart.js to create rich, custom UI elements. This approach bypasses canvas rendering limitations, allowing you to use standard HTML and CSS for advanced tooltip styling and interactive content.

What is the best way to add multi-line labels and conditional styling to Chart.js tooltips?▼

The best way to add multi-line labels and conditional styling is by using advanced callback functions for the tooltip title, label, and footer. These callbacks allow dynamic content generation and conditional formatting based on your specific performance metrics.

How do Chart.js tooltip interaction modes affect data visualization?▼

Chart.js tooltip interaction modes determine how and when tooltips appear based on mouse positioning over the chart. Configuring these modes controls the precision of data hovering, directly impacting user interaction and the clarity of the data visualization.

Does this Chart.js tooltip customization guidance apply to version 4.5.1?▼

Yes, this tooltip customization guidance specifically targets Chart.js version 4.5.1. It covers the configuration options and callback structures guaranteed to be compatible with the v4.5.1 API for your frontend implementation.

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