14 chart types. End-to-end encrypted. Paste and go.

The data visualization tool that can't read your data

Paste CSV, connect your database, drag columns to shelves. Sankey diagrams, bar charts, heatmaps, treemaps, choropleth maps, and 9 more types. Cross-filtered dashboards. Calculated fields. End-to-end encrypted.

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No sign-up required. Your data never leaves your browser.

One tool, many stories

See how teams across industries use Sankey Flow Studio.

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Pick a template and start editing in seconds. No account needed.

Everything you need to tell the story in your data

Paste data, connect databases, drag columns to shelves, share anywhere.

Chart types

14 Chart Types

Sankey, funnel, bar, line, treemap, heatmap, radar, pie/donut, waterfall, scatter/bubble, combo, streamgraph, chord, and choropleth maps. One tool, every story.

Encrypted

End-to-End Encrypted

Studio diagrams are encrypted client-side before reaching our servers. We store blobs we cannot read. Your revenue data stays yours.

SQL

SQL Connections

Connect directly to PostgreSQL, MySQL, SQL Server, Snowflake, and more. Run queries, drag result columns to shelves. Credentials are encrypted end-to-end.

Private Sift

Private Sift

Clean up messy data with a browser-side LLM. Your data never leaves your machine. No server round-trip, no API call. Works offline after first cache.

Deep Sift

Deep Sift

Paste raw notes, CSVs, or screenshots and let the server-side model parse it into the right chart format. Works across all 14 chart types.

Palettes

14 Palettes + Custom Colors

Curated color palettes from wabi-sabi to neon, plus a custom palette where you pick every color. Smart contrast auto-picks readable text.

Embed

Embed Anywhere

Two lines of code. Responsive, lazy-loaded widget for your blog, docs, or dashboard. Interactive charts that update when you do.

API

REST API

Create and manage diagrams programmatically. Bearer token auth, full CRUD, share links. Build charts from CI pipelines, Slack bots, or scripts.

Shelves

Column Shelves

Drag columns to Rows, Columns, Values, Color, and Filter shelves. Tableau-style visual mapping without the Tableau price tag.

Dashboards

Cross-Filtered Dashboards

Build interactive dashboards with drag-and-drop layout. Click a mark in one chart and watch all others filter in real time.

Gallery

Public Gallery

Publish your charts to a searchable gallery. Build your portfolio, get discovered, or find inspiration from other creators.

Team

Team Workspaces

Collaborate with your team. Role-based access, shared diagram library, and an activity audit log so nothing gets lost.

Google Sheets

Google Sheets Connector

Connect directly to Google Sheets. Your charts update automatically when your data does. No CSV export, no manual refresh.

Scheduled refresh

Scheduled Refresh

Set it and forget it. Hourly, daily, or weekly data refresh from any connected source. Charts stay current without you touching them.

SDK

Embedded Analytics SDK

Embed charts in your own apps with the JavaScript SDK. JWT auth, white-label theming, and responsive out of the box.

Performance

Handles 100K+ Rows

A Web Worker engine keeps the UI responsive while large datasets parse and render. No freezes, no spinners that never stop.

Simple, transparent pricing

Free forever. Upgrade when you need more.

Private Mode

$0
No account needed
  • All 14 chart types
  • Full editor with Sift cleanup
  • SVG & PNG export
  • 15 palettes + custom colors
  • No tracking, no cookies, no ads
  • 100% client-side. Nothing leaves your browser.
Open Private Mode

Free

$0
Forever free
  • All 14 chart types
  • 52 saved diagrams
  • Public gallery access
  • Cloud access across devices
  • Sift + 3 Deep Sifts per month
  • SVG & PNG export
  • 15 palettes + custom colors + Smart Contrast
Sign Up Free
Most Popular

Studio

$9 /month
For analysts who outgrew their last tool
  • Unlimited saved diagrams
  • Unlimited Deep Sifts (all 14 chart types)
  • Sensitive Data Mode (E2E encryption)
  • SQL connections (PostgreSQL, MySQL)
  • Google Sheets connector
  • Scheduled data refresh (hourly / daily / weekly)
  • Column shelves (Tableau-style)
  • Private Sift (browser-side, offline capable)
  • REST API + API keys
  • Embed widget + JS SDK for external sites
  • Cross-filtered dashboards
  • Team workspaces + RBAC
  • Screenshot-to-chart import
Get Studio

Questions

Common questions from people evaluating the tool.

Can I build dashboards?

Yes. Toggle dashboard mode to arrange multiple charts on a single canvas. Click any mark and every other chart on the page filters in real time. Available on Studio.

Can I connect to Google Sheets?

Yes. Authorize once via OAuth and your charts pull data directly from any sheet. When the sheet updates, the chart updates. A Studio feature.

Can I embed charts on my website?

Yes. Two options: the lightweight embed widget (two lines of script) for public charts, or the JavaScript SDK with JWT auth for private or white-labeled charts in your own application.

How does end-to-end encryption work?

Studio diagrams in Sensitive Data Mode are encrypted in your browser before upload. The server stores ciphertext it cannot decrypt. Your password never leaves your device. A recovery key lets you regain access if you change your password.

What data formats does it accept?

CSV with auto-delimiter detection, the Sankey/Chord Source [Value] Target format, direct SQL queries against connected databases, and Google Sheets. You can also paste messy text and use Sift to have it parsed automatically.

Is there a free trial for Studio?

The Free tier gives you full access to all 14 chart types, the editor, and export. Studio adds encryption, Chart Muse, SQL connections, and the embed SDK. Sign up free and upgrade any time, no credit card required to start.