Dev tools · alternatives · 2026

24 alternatives to WhatTheDuck – Browser-Based SQL Engine Powered by DuckDb on WASM

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.

WhatTheDuck is a browser-based SQL tool that lets users run SQL queries directly on CSV files without uploading data anywhere. Built on DuckDB running in WebAssembly, it processes files locally in the browser, making… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. WhatTheDuck – Browser-Based SQL Engine Powered by DuckDb on WASM launched in 2023; newer entries below may have overtaken it.

1
WhatTheDuck – open-source, in-browser SQL on CSV files▲119
WhatTheDuck is an in-browser sql tool to analyze csv files that uses duckdb-wasm under the hood. Please provide feedback/issues/pull requests.
2024 · github.com · its alternatives →
2DU
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 →
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
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 →
5
SQL Workbench▲186
In-browser SQL Workbench for data querying & visualization
2024 · sql-workbench.com · its alternatives →
6
soarSQL▲98
The analytical SQL editor - powered by duckDB
2025 · its alternatives →
7
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 →
8
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 →
9
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 →
10
GoSQL – A query engine in 319 LoC▲81
I've always been curious about how SQL engines actually work. So I built a minimum viable SQL engine in Go. - Supports CSV files as tables - Supports SELECT, FROM, WHERE, LIMIT It's very simple: 1. Parses query string 2. Converts it into an AST representation 3. Executes the query against the CSV 4. Returns the results
2024 · github.com · its alternatives →
11
chdb▲88
Embedded SQL OLAP engine powered by ClickHouse
2023 · clickhouse.com · its alternatives →
12
Private, in-browser, CSV-SQL query runner using SQLite-WASM▲41
Upload CSV, and start querying, all locally without any data leaving your browser. Can handle large CSV's easily. Download query results once done. Uses sqlite-wasm binary.
2024 · csvsqltool.com · its alternatives →
13
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 →
14
Anyquery▲110
Query anything with SQL (e.g. Notion, GitHub, JSON)
2024 · anyquery.dev · its alternatives →
15
Logtail▲246
Query your logs like you query your database
2021 · betterstack.com · its alternatives →
16
DuckDB-WASM, execute queries in a browser, and share them as links▲8
DuckDB SQL Shell running entirely in your browser via WebAssembly.
2023 · shell.duckdb.org · its alternatives →
17
Dropbase▲227
Turn your CSV and Excel files to live databases, instantly.
2020 · its alternatives →
18
SQL Polyglot▲53
Try running a query anywhere from PostgreSQL to DuckDB without leaving your browser.
2023 · codapi.org · its alternatives →
19
PondPilot – Run SQL on DuckDB/CSV/etc. Locally via WASM (Open-Source)▲6
Hi HN! We built PondPilot – a fully client-side data exploration tool powered by DuckDB. It’s open-source and built for speed, privacy, and simplicity. Try it: https://app.pondpilot.io GitHub: https://github.com/pondpilot/pondpilot You can: - Run fast SQL queries directly in your browser - Explore CSV, Parquet, JSON, or .duckdb files without uploading - Keep your data 100% local (it never leaves your device) - Install as a PWA and work offline - Use it read-only, with real-time updates when files change It’s designed as a lightweight alternative to notebooks or…
2025 · app.pondpilot.io · its alternatives →
20
ORM for TypeScript with no query-builder, supporting full SQL queries▲220
An extremely simple and explicit ORM for TypeScript - Seb-C/kiss-orm
2020 · github.com · its alternatives →
21
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 →
22
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 →
23
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 →
24
repere – Local-first SQL data explorer using DuckDB WASM▲5
Repere lets you drop CSV/JSON/Parquet/XLSX files into your browser and immediately query them with full DuckDB SQL. Nothing gets uploaded, everything runs locally via DuckDB WASM. Unlike Excel and Google Sheet it can handles millions of rows easily. Features: - Filter, sort, join, pivot across multiple files Every transformation becomes a node in a visual pipeline (DAG) - Full undo/redo, real-time recomputation - Export results or replay pipelines on new files with the same schema - Works offline - Sparklines, themes and charts
Jan 2026 · repere.ai · its alternatives →

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