Playgrounds
Browser-native sandboxes
Run Python, R, SQL, and other data tools in your browser — no local setup required.
Available languages
10
Your saved playgrounds
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The default language of data science
Jupyter Lab (full) workspace
Run Python entirely in your browser with NumPy, Pandas, Matplotlib, SciPy, scikit-learn, statsmodels, SymPy, and more — ideal for cleaning data, building models, and creating charts without installing anything.
Query relational data in-browser
SQL Studio workspace
Practice SELECT, JOIN, GROUP BY, and window functions on SQLite — load CSV datasets into tables and see formatted results instantly.
Statistical computing & ggplot2
RStudio Notebook (full) workspace
Run R in the browser via WebR with ggplot2, dplyr, and more — install extra WASM packages with webr::install() for statistics labs and visualization.
Dashboards, JSON pipelines & Chart.js
Code Studio workspace
Run JavaScript in a Web Worker with built-in CSV parsing, groupBy/sumBy helpers, and Chart.js rendering — the same stack powering modern data dashboards and full-stack analytics apps.
Typed pipelines for modern data apps
TypeScript Studio workspace
Write type-safe analytics code that transpiles in-browser via esbuild-wasm, then runs in the same JS sandbox — how production data teams build Next.js dashboards and Node ETL scripts.
Production SQL — real Postgres in the browser
PostgreSQL Studio workspace
Run actual PostgreSQL via PGlite WASM — ILIKE, JSONB, SERIAL, RETURNING, and window functions. What you'll use at work, not just SQLite.
Transform data with models & refs
dbt Studio workspace
Build staging and mart models with dbt-style SQL, compile {{ ref() }} macros, and execute against PostgreSQL — the modern analytics engineering workflow.
Power BI measure language
DAX Studio workspace
Write DAX measures like SUM, CALCULATE, and FILTER against sample Sales tables — the formula language behind Power BI and Microsoft analytics.
Data engineering CLI & pipelines
Shell Terminal workspace
Practice the shell skills data engineers use daily — pipes, grep, awk, sed, and CSV wrangling — in a safe virtual filesystem with no OS access.
Excel-style analytics for business students
Spreadsheet Studio workspace
Full spreadsheet studio with Excel-style grid, formula bar, open/export .csv and .xlsx, and 400+ functions via HyperFormula — entirely in your browser.