WhatTheDuck is an open-source web application built on DuckDB. It allows users to upload CSV files, store them in tables, and perform SQL queries on the data.
- Database Management Tool
- Free • Open Source
- Online
- Self-Hosted

WhatTheDuck is an open-source web application built on DuckDB. It allows users to upload CSV files, store them in tables, and perform SQL queries on the data.

Delimited is a minimalistic CSV and TSV editor for macOS. It’s built for speed and simplicity, letting you quickly create or explore tables and save them in either CSV or TSV format.

TableFlow is an open-source CSV importer that simplifies customer data onboarding by embedding an import experience in your application. It allows customers to upload CSV files, map columns, and fix errors.

Modern CSV is an editor for tabular data. It makes up for the weaknesses of spreadsheet programs in handling CSVs while incorporating the strengths of the best text editors.

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An intuitive data editor for developers, analysts, and businesses working with complex data and building interactive diagrams.


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Superintendent.app is a Desktop app that enables you to write SQL on large of small CSV files.

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Comma Chameleon is a desktop CSV editor (built with Electron.js) that provides a simple interface for editing data.

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Fix42 is a growing collection of free online tools for everyday digital tasks. From viewing CSV files and converting images to learning German and exploring bioinformatics data, we provide simple solutions without sign-ups or complicated processes.
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Smart CSV will help you easily explore your CSV files with tons of features. With Smart CSV you can:



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A no-code desktop app for exploring, analyzing, and visualizing data locally — with support for big data, multiple formats, AI assistance, and interactive charts — all with privacy-first design.

CSVFiddle is a free tool to explore and share insights from CSV files using SQL You can import data, write SQL, then instantly share it with anyone.