YakBeautiful charts, anywhere an image works. Emails, reports, Slack, docs, dashboards.
Describe your chart in a URL and get back a finished PNG. Build it in the visual editor or call the API — then drop it into any email, report, wiki, or chat message. No charting library. No JavaScript. No screenshots.
Your charts shouldn't need a runtime.
The problem
Charting libraries need a build step, a browser, and JavaScript — none of which exist inside an email, a PDF, or a chat message.
The cost
So every report becomes screenshot chores — capture, crop, paste, repeat — and the numbers are stale the moment you hit send.
The solution
An image works everywhere. One YakCharts URL renders a current PNG on every load — embed it once and it stays up to date.
From quick bar chart to branded report.
28 chart types
Line, sparkline, spline, area, bar (vertical, horizontal, stacked, percentage), funnel, gauge, waterfall, bullet, pie, donut, scatter, bubble, box & whisker, candlestick, violin, polar, word cloud, Sankey, choropleth maps, and QR codes.
Nine themes — or yours
Default, dark, light, cerulean, icy, sand, NCS, contrast, and JetBrains — or design your own in the theme editor to match your brand.
Right inside chat
Run /yakchart in Slack and a finished chart lands straight in the conversation.
Visual editor
Build and fine-tune charts in the browser — data, series, colours, legends, and labels — with no code required.
Know when it's seen
Embed a tracked chart in your email and every open is logged — verified opens split from Apple and Gmail proxy noise, so your numbers stay honest.
Simple, secure API
One authenticated URL returns a finished chart image. Lock requests to your API key, with optional HMAC signing.
One request. A finished chart back.
No library to download, no textbook-sized manual. Describe the chart in the URL of an image request — type, title, data, theme — and the response is the finished PNG.
https://yakcharts.com/api/chart.png?apiKey=API_KEY&type=line&title=Revenue&data=[[1,10],[2,15],[3,12]]
<!-- Embed a live chart anywhere an image works -->
<img src="https://yakcharts.com/api/chart.png
?apiKey=API_KEY
&type=bar
&title=Quarterly Revenue
&data=[["Q1",10],["Q2",15],["Q3",12],["Q4",20]]"
alt="Quarterly Revenue" />
Point, click, chart.
Pick a chart type, paste your data, choose a theme, and copy the finished image URL — the visual editor does the rest. Adjust colours, legends, and labels to match your brand, then save it as a theme of your own.
And a 30 day free trial with no strings attached.
Start free. Scale when you are ready.
Included: 100,000 API Requests / Month
Included: All chart types and custom themes
Included: Slack app
Included: SSL encryption
Included: 1,500,000 API Requests / Month
Included: All chart types and custom themes
Included: Slack app
Included: SSL encryption
Included: Priority support
Included: 5,000,000 API Requests / Month
Included: All chart types and custom themes
Included: Slack app
Included: SSL encryption
Included: Priority support