undash · Unthink BI

Private by Design

undash runs entirely in your browser. No backend, no uploads, no account. Your data is stored locally on your machine and never leaves it.

Fast Query Engine

Powered by DuckDB right in your browser. Analytical queries on millions of rows run in no time.

Effortless Import

Drag and drop CSV, TSV, JSON or Parquet files, up to 2 GB each. Column types are detected automatically. No manual data wrangling required.

Built on SQL

Every dataset is a plain SQL query. Refine models with dimensions, measures, bins and date transforms, or peek at the SQL behind any chart. For professionals: an SQL console that shows results as you type.

SELECT
  region,
  date_trunc('month', date) AS month,
  sum(revenue) AS revenue
FROM sales
GROUP BY ALLSELECT
  region,
  date_trunc('month', date) AS month,
  sum(revenue) AS revenue
FROM sales
GROUP BY ALL

region	month	revenue
North	2025-01	372
South	2025-01	301
East	2025-01	331

20+ Chart Types

From bar, line and area charts to scatter, heatmap, density, streamgraph, radar, KPI and choropleth maps. Facet any chart into small multiples for a virtually endless range of visualizations.

Instant Cross-Filtering

Interactive controls filter every chart of a dashboard at once: category pickers, range sliders for numbers, dates and times, and boolean toggles. Pre-aggregation keeps it snappy.

Mouse, Touch or Keyboard

Everything works with just a mouse on desktop or with taps and gestures on tablet. Pros can go keyboard-only instead: navigate, search, switch views and jump to any chart type with Vim-style shortcuts.

Works Offline

Install undash once as an app and it keeps working without an internet connection. Or simply open it in your browser like any other website.

Present Anywhere

Arrange charts with drag and drop or smart layout templates. Present your insights in full screen or run a dashboard in kiosk mode on a wall display.

Export Everything

Export charts and dashboards as vector graphics in PDF or SVG, or as PNG and JPEG images, on custom or standard paper sizes. Export data as CSV, Excel, JSON or Parquet.

Make It Yours

Choose from six fonts made for data visualization. Switch between light and dark mode and between glass and flat styles, pick a primary color and go monochromatic or categorical.

undashUnthink BI.

From Raw Table to Dashboard. In One Click.

Drop a File

AI Proposes

Dashboard Ready

Serious Analytics. Zero Infrastructure.