Data Studio – Open-Source Data Notebooks
Hey HN, I am Alex. I am open sourcing Data Studio, a lightweight data exploration IDE in your browser that runs locally. Try it: https://local.dataspren.com (no account needed, runs locally) More information: https://github.com/dataspren-analytics/data-studio I love working with data (Postgres, SQL, DuckDB, DBT, Iceberg, ...). I always wanted a data exploration tool that runs in my browser and just works. Without any infra or privacy concerns (DuckDB UI came quite close). Features: - Data Notebooks - SQL cells work like DBT models (they materialize to views) -…
Data Studio – Open-Source Data Notebooks launched on February 17, 2026 with 28 votes, #677 of 16,628 launches that month and more than 95% of that year's launches.
In plain words
Data Studio is an open-source, browser-based IDE for data exploration that runs locally without requiring infrastructure or accounts. It supports SQL notebooks where cells materialize to views like DBT models, allows Python functions within SQL queries, and enables direct use of database views as dataframes. Users can work with Postgres, DuckDB, and other databases, plus transform and format Excel, CSV, Parquet, and JSON files. Designed for data analysts and engineers who want privacy-conscious, lightweight data work in their browser.
written from the facts on this page · September 2026
From the sources
Unlock the power of your data with interactive dashboards and beautiful reports that inspire smarter business decisions.
A local Python/SQL notebook in the browser for exploring, transforming and visualizing data using WebAssembly. - dataspren-analytics/datastudio
Explore and visualize data, entirely in your browser. Powered by WebAssembly and DuckDB. Your data stays on your machine. Most data tools require a backend, cloud account, or sending your data somewhere. DataStudio runs entirely in your browser . Python and DuckDB execute via WebAssembly, and files are stored locally using the browser's Origin Private File System. There is no server, no upload, and nothing to install. cp .env.example .env docker compose up --build Tech Stack Technology Role Next.js + React 19 UI framework Pyodide Python compiled to WebAssembly DuckDB In-process analytical SQL engine ECharts Data visualization CodeMirror Code editor Tailwind CSS + Radix UI Styling and…from github.com
In the maker’s words, at launch
Hey HN, I am Alex. I am open sourcing Data Studio, a lightweight data exploration IDE in your browser that runs locally. Try it: https://local.dataspren.com (no account needed, runs locally) More information: https://github.com/dataspren-analytics/data-studio I love working with data…
Does a similar job
all alternatives →
Outerbase Studio – Open-Source Database GUI2024 · github.com · ▲356We just launched Outerbase Studio, the open-source version of our core database offering. It works in your browser or as a desktop app and supports MySQL, PostgreSQL, and SQLite. What it does: • Connects to MySQL, PostgreSQL, and SQLite databases. • Spin up local databases directly through the UI, even if you don’t have one running. • Manage and query your data in a lightweight, intuitive interface. • Completely open source. Why we built it: We wanted to share the core Outerbase experience with the developer community as a free, open-source tool. It’s simple, fast, and removes the barriers…
Open Source PostgreSQL Studio2021 · supabase.com · ▲407Powerful PostgreSQL tool is now open source for self-hosting
- DUDuck-UI – Browser-Based SQL IDE for DuckDB2025 · demo.duckui.com · ▲213
I built Duck-UI, a web-based SQL editor that runs DuckDB entirely in your browser via WebAssembly. No backend required. The Problem: Every time I needed to query csv, parquet, or even to play with SQL, I had to either: (a) spin up a Jupyter notebook (b) use the CLI (c) upload to a hosted service. Friction at every step (TOO MUCH to load a csv or even to test some sql (study)... The Solution: DuckDB's WASM runtime lets us run SQL analysis client-side. Load CSV/JSON/Parquet files from disk or URL, write SQL, get results instantly. Data stays on your machine. What It Does: SQL editor…

Open-source, browser-local data exploration using DuckDB-WASM and PRQL2024 · github.com · ▲227Hey HN! We’ve built Pretzel, an open-source data exploration and visualization tool that runs fully in the browser and can handle large files (200 MB CSV on my 8gb MacBook air is snappy). It’s also reactive - so if, for example, you change a filter, all the data transform blocks after it re-evaluate automatically. You can try it here: https://pretzelai.github.io/ (static hosted webpage) or see a demo video here: https://www.youtube.com/watch?v=73wNEun_L7w You can play with the demo CSV that’s pre-loaded (GitHub data of text-editor adjacent projects) or upload…
SQL workbench in the browser2024 · sql-workbench.com · ▲117Free browser-based SQL editor powered by DuckDB. Query and visualize CSV, JSON, Parquet and Arrow files locally or from remote URLs. No installation required.
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Source: Show HN post ↗ · launch text quoted in part
Launched alongside, February 2026
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