How to Create Custom Embeddable Charts for Your Website

Jonathan Geiger
11/11/2025

How to Create Custom Charts for Your Website
Want to display data beautifully on your website? Whether you need line charts for trends, bar charts for comparisons, or pie charts for distributions, I'll show you how to create custom chart widgets in minutes - no coding required.
Charts and data visualizations are essential for making complex information digestible. They help visitors understand trends, compare options, and grasp insights at a glance.
In this guide, I'll walk you through creating custom chart widgets using AI, focusing on building a line chart for displaying trends over time. New to custom widgets? Start with our complete guide on how to build custom widgets first.
Why Add Chart Widgets to Your Website?
Chart widgets transform raw data into visual stories:
- Make Data Digestible: Complex numbers become easy-to-understand visuals
- Show Trends Clearly: Help visitors see patterns and changes over time
- Build Credibility: Professional data visualization demonstrates expertise
- Engage Visitors: Interactive charts keep people exploring your data
- Tell Your Story: Visual narratives are more compelling than tables of numbers
SaaS dashboards use line charts for growth metrics, portfolios use bar charts for performance comparisons, news sites use charts for data journalism. Whatever your industry, charts help communicate more effectively.
Building Your Custom Chart with Embeddable AI
Creating custom charts with Embeddable's AI is remarkably simple. No charting libraries to learn, no complex configurations - just describe what you want and the AI builds it.
Step 1: Start with Your Chart Concept
Before you begin, think about what your chart needs to show:
- Chart Type: Line chart, bar chart, pie chart, area chart?
- Data: What information will you display?
- Purpose: What story does the data tell?
- Interactivity: Should users be able to hover, click, or filter?
- Editability: Do you need to update data regularly?
For our example, we're building a line chart to display trends over time with smooth curves, tooltips, and legends.
Step 2: Describe Your Chart to the AI
Open Embeddable and describe your chart in natural language. Here's the exact prompt we'll use:
Create a Line Chart widget for displaying trends over time. Use smooth, curved lines with optional dots at data points. Include axis labels, tooltips, and legends. Data should be editable via CMS.
The AI understands what you want and builds a complete chart widget with:
- Smooth, curved line visualization
- Interactive tooltips that appear on hover
- Clear axis labels and legends
- A CMS interface to easily update your data
- Responsive design that works on all devices
- Professional styling that looks polished

Step 3: Provide Your Website URL for Design Analysis
This is where Embeddable's AI shines. Give it your website URL, and the AI will:
- Match your brand colors to the chart lines and elements
- Adapt fonts for labels and legends to match your typography
- Style tooltips to feel native to your site
- Ensure the chart integrates seamlessly with your design
The result? A chart that looks like it was custom-designed by your team, not a generic embedded widget.

Step 4: Refine Your Chart
Once the AI generates your chart, refine it through conversation:
- "Change the line color to match my brand blue"
- "Add a second line to compare two data sets"
- "Make the dots at data points larger"
- "Add a grid background for easier reading"
- "Include a toggle to switch between line and bar chart"
- "Add animation when the chart loads"
Each refinement happens instantly. Watch your chart update in real-time as you perfect every detail.
You can also use Embeddable's visual editor to make adjustments yourself - modify colors, adjust spacing, change data points, or tweak the layout.
Step 5: Test Your Chart and Update Data
Before embedding, test your chart thoroughly:
- Verify Data Display: Ensure all data points render correctly
- Test Interactivity: Hover over data points to check tooltips
- Check Responsiveness: View on desktop, tablet, and mobile
- Update Data via CMS: Try editing data through the CMS interface
- Test Edge Cases: What happens with very large or very small numbers?
The CMS editor makes it easy to update your chart data without touching any code. Perfect for displaying metrics that change over time.
Embedding Your Chart on Any Website
Your custom chart works everywhere. Once you're satisfied, you'll get a simple embed code that works on:
- WordPress: Add to any page, post, or custom post type
- Shopify: Display on product pages, landing pages, or blog posts
- Wix / Squarespace: Embed in any section or page
- Custom websites: Add to any HTML page
- Dashboards: Integrate into admin panels or client dashboards
The process is the same everywhere:
- Get Your Embed Code: Click "Publish" and copy the code snippet
- Paste Into Your Website: Add where you want the chart to appear
- Publish Your Page: The chart goes live immediately
Your chart automatically:
- Scales perfectly on all screen sizes
- Loads fast with optimized rendering
- Works in all major browsers
- Updates instantly when you change data
- Maintains crisp visuals on high-DPI displays
Types of Charts You Can Build
The same AI-powered process works for any chart type:
Line Charts
- Time series trends (revenue, traffic, growth)
- Multiple data series comparisons
- Forecast and projection visualizations
- Stock price or financial data
- Temperature or weather trends
Bar & Column Charts
- Comparison between categories
- Survey results and ratings
- Sales by product or region
- Year-over-year comparisons
- Top performers rankings
Pie & Donut Charts
- Market share distribution
- Budget allocation
- Survey demographic breakdowns
- Resource utilization
- Category percentages
Area Charts
- Cumulative values over time
- Stacked data series
- Volume and magnitude trends
- Multiple overlapping datasets
Scatter & Bubble Charts
- Correlation analysis
- Distribution patterns
- Three-dimensional data (bubble size)
- Outlier identification
Specialized Charts
- Heatmaps for patterns
- Radar charts for multi-metric comparisons
- Candlestick charts for financial data
- Gantt charts for timelines
- Funnel charts for conversion data
Start with a Template or Build from Scratch
Not sure where to start? Embeddable offers free chart widget templates you can customize:
- Line Chart - Display trends and time series data
- Bar Chart - Compare values across categories
- Pie Chart - Show distribution and percentages
- Area Chart - Visualize cumulative data
- Multi-Series Chart - Compare multiple data sets
Choose a template close to your needs, then customize it with AI to match your exact data and design requirements.
Why Custom Charts Drive Engagement
Well-designed charts keep visitors engaged and help them understand your message:
They Simplify Complexity: A good chart makes complex data instantly understandable. Visitors grasp trends in seconds that would take minutes to understand from a table.
They Build Trust: Professional data visualization shows you're serious about transparency and accuracy. It demonstrates you have data to back up your claims.
They Tell Stories: Charts create narratives. Growth charts tell success stories, comparison charts highlight advantages, distribution charts reveal insights.
They Encourage Exploration: Interactive charts invite visitors to hover, click, and discover. This engagement keeps them on your page longer.
They're Shareable: Compelling data visualizations get shared on social media, driving traffic back to your site.
Making Your Charts More Powerful
Take your charts to the next level with these enhancements:
Make Them Interactive
Add filters, date range selectors, or toggles to let users explore different views of your data.
Add Real-Time Data
Connect your chart to live data sources so it updates automatically without manual editing.
Include Download Options
Let users download the chart as an image or export the data as CSV/Excel.
Combine Chart Types
Create combo charts mixing lines and bars, or layer multiple visualizations together.
Add Annotations
Highlight important data points or trends with text annotations and markers.
Enable Data Input
Let users input their own data to see personalized visualizations.
Embeddable supports integrations with Google Sheets, Airtable, and APIs to pull data automatically into your charts.
Best Practices for Chart Design
Follow these principles for maximum impact:
Choose the Right Chart Type
- Line charts: Show changes over time
- Bar charts: Compare discrete categories
- Pie charts: Display part-to-whole relationships (use sparingly)
- Scatter plots: Show correlations
Keep It Simple
Don't overcomplicate. One clear message per chart is better than trying to show everything at once.
Use Color Thoughtfully
- Stick to 2-4 colors maximum
- Ensure sufficient contrast
- Use color to highlight important data
- Consider colorblind-friendly palettes
Label Clearly
- Always label axes
- Include units of measurement
- Add a descriptive title
- Provide context in a subtitle or caption
Make It Responsive
Test on mobile devices. Simplify complex charts for small screens if needed.
Ready to Build Your Chart?
That's it! No charting libraries to learn, no design skills needed, no coding required. Just describe what you want and AI builds your custom chart in minutes.
Your chart will:
- Match your website's design perfectly
- Display data beautifully and clearly
- Work on every platform and device
- Update easily through a simple CMS
- Load fast and perform smoothly
Ready to get started?
Option 1: Start with a Template Browse free chart widget templates and customize one to your needs.
Option 2: Build Custom with AI Head to Embeddable and describe your chart - the AI will build it in minutes.
Need More Widget Ideas?
More Tutorials:
- How to Build Custom Widgets for Your Website
- How to Build a Custom Calculator for Your Website
- How to Create a Number Counter for Your Website
Start creating stunning data visualizations for your website now! ππβ¨