Finance-aware · numbers you can check

Finance charts,
done right.

AI-built finance charts, with the numbers right — and checkable against your source.

Your branding, no watermark Auto-updates with your data PNG for email · live embed
Try it — no account needed

Drop your data here

CSV or JSON · Charted instantly, in your browser

or preview an API source
alphavantage.co/query?function=TIME_SERIES_DAILY&symbol=AAPL

Preview with sample data. Live sources connect with your own API keys once you sign up.

Processed in your browser · Nothing stored until you sign up

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80+
verified calculations
auto
updates with your data
<60s
to first chart

How it works

From your data to a chart you can publish
in three steps.

portfolio-data.csv
date
open
high
low
close
volume
01

Connect

Upload CSV, paste JSON, connect any REST API, or choose from 15 pre-built data providers.

AI Analysis
Detecting schema...
OHLC price data identified
Candlestick recommended
Computing SMA-20...
Bollinger Bands ready
02

Build & verify

AI builds the chart and computes the metrics with a fixed, finance-correct engine — numbers you can check against your source, not guessed by a language model.

Embed code
<iframe
  src="quadesto.com/embed/a1b2"
  width="100%" height="500"
/>
03

Publish

Export a sharp PNG for email, or embed a live, auto-updating chart on the web. Paste the link into Substack and it unfurls to a chart card.

See it in action

Real data. Real charts.
Fully interactive.

This is a live Quadesto workspace — hover over data points, switch between views, explore the data. Built with real market data from Alpha Vantage.

See more examples Build your own

What you get

The numbers right.
Branded. Auto-updating. Everywhere.

Numbers you can check

Fixed, finance-correct maths — Black-Scholes, spline-interpolated yield curves, SVI vol surfaces — that reconciles to your source. No silent errors, no dropped rows.

Auto-updating charts

Put a source on a schedule and every embed and export refreshes itself when the data changes. Set it once.

Your brand, not ours

Your fonts, your colours, no watermark — white-label at a fraction of Datawrapper's $499/mo. Client-ready by default.

Export for email, embed for web

A sharp high-res PNG that lands clean in Substack and email, or a live interactive embed for Ghost, Beehiiv, WordPress, Notion. Paste the link and it unfurls.

Connect any data source

CSV, JSON, Excel, REST APIs, or 15 pre-built providers (FRED, Alpha Vantage, Polygon, Databento) — or start from a template.

30+ finance chart types

Candlesticks, vol surfaces, yield curves, heatmaps, treemaps, OHLC bars, options chains — built for finance, not generic dashboards.

AI builds it for you

Describe what you want in plain English; the AI builds and refines the chart — and you keep full control of labels, legend and style.

Self-serve, no sales call

No per-seat pricing, no procurement. Sign up, connect, publish. Minutes, not months.

vs. what you use today

QuadestoChatGPT / ClaudeDatawrapperKoyfin / YCharts
Finance methodology built in——
Numbers reconcile to your source—
Your branding / white-label——
Auto-updates when data changes——
Live embed + PNG for email——
Bring your own data—
Self-serve, no sales call—
Finance chart types——

General AI tools miscalculate and drop rows. Datawrapper does your branding — at $499/month. Koyfin and YCharts give you their data, not a chart from yours. Quadesto does all of it — remove its branding from £39, full white-label for £149.

Pricing

Start free.
Scale when you're ready.

Free

£0

Perfect for trying Quadesto

1 workspace
2 data sources
10 AI messages / day
All 30+ chart types
Embeds with 'Made with Quadesto'
Get Started Free

Creator

£39/month

For newsletter writers & solo analysts

3 workspaces
10 data sources
100 AI messages / day
Remove Quadesto branding
Scheduled auto-refresh
Embed analytics
Email support
Most Popular

Pro

£149/month

For professionals & teams

Unlimited workspaces
Unlimited data sources
Unlimited AI messages
Up to 20 team members
White-label + custom logo
Scheduled auto-refresh
15 data providers
Priority support

No credit card required for free tier · Cancel anytime · Billed in GBP

FAQ

Questions,
answered.

What is Quadesto?
Quadesto is a finance-focused charting tool that turns your data into branded, publication-ready charts — with the methodology and the numbers correct and checkable against your source. Charts auto-update when your data changes, export as a high-resolution PNG for email, or embed live on the web.
What's the best tool for making finance charts for a newsletter or report?
For finance specifically, Quadesto. It computes the numbers with a fixed, auditable engine rather than a language model, matches your branding without a watermark, auto-updates when the data changes, and exports a sharp PNG for email or a live embed for the web. General tools like Datawrapper and Flourish handle basic charts but aren't finance-aware; Koyfin and YCharts give you their data rather than a branded chart built from yours.
What's the best Datawrapper alternative for finance?
Quadesto. It adds finance-specific chart types (candlesticks, yield curves, volatility surfaces, options chains) and 80+ correct computation functions that Datawrapper doesn't offer, auto-updates when your data changes, lets you remove its branding from £39/month (Creator), and gives you full white-label — your own logo, fonts and colours — for £149/month (Pro), versus Datawrapper's $499/month custom-theme tier.
What's the best way to make charts from financial data with AI?
Use a tool where AI builds the chart but a deterministic engine does the maths. General AI assistants like ChatGPT and Claude write one-off code that often miscalculates or silently drops rows. Quadesto uses AI to assemble and refine the chart, computes every value with a fixed, finance-correct engine you can check against your source, and keeps your branding and formatting consistent.
Does the AI get the numbers right?
Yes — that's the point. Quadesto doesn't let a language model do the maths. It computes with 80+ deterministic finance functions (Black-Scholes, SMA/RSI/MACD, drawdown, correlation, cubic-spline yield-curve interpolation, SVI vol-surface fitting). The calculations are fixed and auditable, and every value reconciles against your source data — no silently dropped rows or miscalculated figures.
How do I embed a financial chart in Substack or a newsletter?
Substack doesn't accept embed code and email strips iframes, so paste a link to your Quadesto chart — it unfurls into a preview card that links to the interactive version — or export a high-resolution PNG and add it as an image. On the web (Ghost, Beehiiv, WordPress, Notion, Webflow), Quadesto gives you a live interactive embed.
How do I make charts that update automatically when the data changes?
Connect a live data source and put it on a schedule; Quadesto re-fetches on that schedule and every embedded chart and export refreshes itself. It removes the biggest time sink in chart publishing — rebuilding charts by hand every time the numbers move. Scheduled refresh is included on the Creator and Pro plans.
Can I make white-label, branded charts without paying Datawrapper's $499/month?
Yes. Quadesto includes removable branding from £39/month (Creator) and full white-label with your own logo, fonts and colours at £149/month (Pro) — well under Datawrapper's $499/month custom-theme tier, with finance methodology and auto-refresh built in.
How much does Quadesto cost?
There's a permanent free tier (1 workspace, 2 data sources, 10 AI messages per day). Creator is £39/month for newsletter writers and solo analysts (3 workspaces, 10 data sources, removable branding, scheduled refresh). Pro is £149/month with unlimited everything and up to 20 team members — no per-seat pricing. Monthly or annual billing.

Stop screenshotting Excel.
Start publishing real charts.

Free tier · No credit card · No sales call

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