Dev tools · alternatives · 2026

24 alternatives to WhatTheDuck – open-source, in-browser SQL on CSV files

WhatTheDuck is an in-browser sql tool to analyze csv files that uses duckdb-wasm under the hood. Please provide feedback/issues/pull requests.

WhatTheDuck is an open-source, in-browser tool that lets users run SQL queries directly on CSV files using DuckDB-Wasm. It's designed for developers and data analysts who need to quickly analyze CSV data without… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. WhatTheDuck – open-source, in-browser SQL on CSV files launched in 2024; newer entries below may have overtaken it.

1. 1
   WhatTheDuck – Browser-Based SQL Engine Powered by DuckDb on WASM▲11

   WhatTheDuck is a free-to-use tool that allows you to run SQL queries on your CSV files right in your browser. No data is sent anywhere. We've leveraged the power of DuckDB over WASM to make this possible. Do try it out and hit us with any feedback.

   2023 · whattheduck.incentius.com · its alternatives →

2. 2
   SQL workbench in the browser▲117

   Free browser-based SQL editor powered by DuckDB. Query and visualize CSV, JSON, Parquet and Arrow files locally or from remote URLs. No installation required.

   2024 · sql-workbench.com · its alternatives →

3. 3CQ
   CSVFiddle – Query CSV files with DuckDB in the browser▲64

   Import CSVs, write SQL, and instantly share it with anyone. Runs 100% in-browser, so you're in control of your data.

   2022 · csvfiddle.io · its alternatives →

4. 4
   SQL Workbench▲186

   In-browser SQL Workbench for data querying & visualization

   2024 · sql-workbench.com · its alternatives →

5. 5DU
   Duck-UI – Browser-Based SQL IDE for DuckDB▲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…

   2025 · demo.duckui.com · its alternatives →

6. 6
   Open-source, browser-local data exploration using DuckDB-WASM and PRQL▲227

   Hey 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…

   2024 · github.com · its alternatives →

7. 7
   soarSQL▲98

   The analytical SQL editor - powered by duckDB

   2025 · its alternatives →

8. 8
   Pluck▲6

   Instant data analysis for any webpage

   2025 · pluckdata.com · its alternatives →

9. 9
   Work with CSV files using SQL. For data scientists and engineers▲99

   A SQL spreadsheet desktop app that queries and visualizes CSV files using SQL.

   2021 · superintendent.app · its alternatives →

10. 10
    TextQuery – Query CSV, JSON, XLSX Files with SQL▲163

    Hiya HN! TextQuery is my sabbatical project that I have been working on for the past six months. It was born out of a personal pain point. Anytime I wanted to analyze raw CSV data, I had to create a schema first before I could import it for querying. And to create charts, I had to use yet another tool. I also disliked how bad charts from popular tools like Excel, Google Sheets looked like. I wanted an easier way to do this and TextQuery was my solution: an all-in-one tool to query CSV files using SQL and create beautiful visualizations as well. Currently, it's a macOS app and focused on CSV…

    2025 · textquery.app · its alternatives →

11. 11
    Modern CSV▲111

    A CSV editor/viewer

    2019 · its alternatives →

12. 12
    SQL Workbench Embedded▲11

    A lightweight JavaScript library that transforms static SQL code blocks into interactive, browser-based SQL execution environments using DuckDB WASM. Zero backend required.

    Nov 2025 · embedded.sql-workbench.com · its alternatives →

13. 13
    OpenSheet▲86

    Hi folks. I've been doing some experiments on how LLMs could get more handy in the day to day of working with files (CSV, Parquet, etc). Earlier last year, I built https://datakit.page and evolved it over and over into an all in-browser experience with help of duckdb-wasm. Got loads of feedbacks and I think it turned into a good shape with being an adhoc local data studio, but I kept hearing two main things/issues: Why can't the AI also change cells in the file we give to it? Why can't we modify this grid ourselves? So besides the whole READ and text-to-SQL flows, what seemed…

    Feb 2026 · opensheet.app · its alternatives →

14. 14
    cq – Query CSVs using SQL▲80

    Query CSVs using SQL. Contribute to jolmg/cq development by creating an account on GitHub.

    2019 · github.com · its alternatives →

15. 15
    SQL Polyglot▲53

    Try running a query anywhere from PostgreSQL to DuckDB without leaving your browser.

    2023 · codapi.org · its alternatives →

16. 16SA
    SpreadsheetDB – A database that you can query with spreadsheets▲144

    2017 · spreadsheetdb.io · its alternatives →

17. 17
    Tad – A Desktop App for Viewing and Analyzing Tabular Data (CSV Files)▲15

    Tad is a fast, free, cross-platform desktop application for viewing and analyzing tabular data files.

    2017 · tadviewer.com · its alternatives →

18. 18
    Execute SQL against Bluesky firehose▲100

    DuckDB for streaming data. Contribute to turbolytics/sql-flow development by creating an account on GitHub.

    2024 · github.com · its alternatives →

19. 19
    SQL query for CSV▲85

    Analyze CSV records using sql syntax right in your browser

    2022 · csv-query.com · its alternatives →

20. 20
    Bun-sqlgen – Type-safe raw SQL for Bun, no ORM▲55

    Types generator for your Bun.sql queries. Contribute to ilbertt/bun-sqlgen development by creating an account on GitHub.

    Jun 2026 · github.com · its alternatives →

21. 21
    chdb▲88

    Embedded SQL OLAP engine powered by ClickHouse

    2023 · clickhouse.com · its alternatives →

22. 22
    Musoq – Query Anything with SQL Syntax (Git, C#, CSV, Can DBC)▲56

    Hey, For those of you who don't know my little tool Musoq, I wanted to introduce it as a small tool that allows you to query with SQL-like syntax without any database. It allows you to query various things from niche ones like CAN DBC files, weird ones like C# code, interesting ones with Git querying to regular stuff like CSV, TSV and various others. I am quite a bit experimenting with various things so I'm hybridizing the engine with LLMs or doing other weird stuff that are more or less practical :-) I wanted also to share some recent developments in this little project as I hope it might…

    2024 · github.com · its alternatives →

23. 23
    CSV Explorer (YC F1) - Explore CSVs with Millions of Rows▲60

    Search, Aggregate, & Plot CSVs with millions of rows

    2017 · csvexplorer.com · its alternatives →

24. 24
    Quak Query▲10

    Quick and dirty duckdb in the browser, parquet!

    2025 · quak.dev · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →