nowfound

Dev tools · November 2, 2024

Private, in-browser, CSV-SQL query runner using SQLite-WASM

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.

Private, in-browser, CSV-SQL query runner using SQLite-WASM launched on November 2, 2024 with 41 votes, #563 of 4,990 launches that month and more than 90% of that year's launches. The site was still online in September 2026, 1 year on.

Visit csvsqltool.com ↗Alternativestop 11% of November 2024

In plain words

This tool lets users upload CSV files and run SQL queries directly in their browser using SQLite-WASM, keeping all data local and private. It handles large CSV files and allows users to download query results. Designed for developers and analysts who need to analyze CSV data without uploading it to external servers, the tool runs entirely in-browser with no data transmission.

written from the facts on this page · September 2026

From the sources

Run SQL queries on your CSV files directly in your browser with CSV SQL Tool! No data upload required, lightning-fast processing for millions of rows, and exportable results. Keep your data private and secure.

Run SQL queries on CSV files directly in your browser. No data leaves your browser. Fast, private, and easy to use. Beekeeper Studio is a modern, easy to use SQL client for MySQL, Postgres, SQLite, and more. Note: Column names might have underscores in place of whitespace characters to make them sql-safe. However, downloaded results will have original column names. Also, use shift+enter for adding a newfrom csvsqltool.com

Does a similar job

all alternatives →
  • CSVSqlTool2024 · beekeeperstudio.io · ▲2

    Private, in-browser, csv-sql query runner using sqlite-wasm

  • DU
    Duck-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…

  • SQL Workbench2024 · sql-workbench.com · ▲186

    In-browser SQL Workbench for data querying & visualization

  • SQ
    SQLite query inside a Bash function2021 · ▲134

    Part of the workflow for building my website is the generation of a table in tab-separated column format (.tsv). The source data is found in four other .tsv files. I use an SQLite query to perform a 4-way join and write out the new table. For convenience, I wrote a script that encapsulates the query inside a Bash function. The example below illustrates this technique. repertoire() { pushd $CMM_SOURCES&#x2F;_data sqlite3 <<EOS .headers on .mode tabs .import category.tsv category .import composition.tsv composition .import concert.tsv concert .import program.tsv program .once repertoire.tsv…

  • Query SQLite files stored in S32022 · github.com · ▲160

    Query SQLite files in S3 using s3fs. Contribute to litements/s3sqlite development by creating an account on GitHub.

  • SQL workbench in the browser2024 · sql-workbench.com · ▲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.

More dev tools this month

the category →
  • /dev/null▲489

    a social network for devs

    Dev tools · 3d ago · dev-null.sh

  • open-source IDE for thoughtful software design. Contribute to devdotfast/whiteboard development by creating an account on GitHub.

    Dev tools · 28d ago · github.com

  • Contribute to reladraw/reladraw development by creating an account on GitHub.

    Dev tools · 26d ago · github.com

  • OpenBot▲362

    Grok Bot alternative: free, local, open-source, multiplayer

    Dev tools · 23d ago · openbot.run

  • Talanoa▲346

    Hi HN, I’m a fullstack developer, and honestly, I’ve lost count of how many side projects I’ve worked on over the years. But one idea kept coming back to me: a different kind of email client. It first came to me in 2014: “What if we could handle emails more like conversations?” Every year, I’d revisit this concept in my “Build Notes.” Ten years later, no one had built exactly what I had in mind — so I finally decided to do it myself. That’s how Talanoa was born. I wanted something focused on people, not timelines. I was tired of marking messages as unread just to remember to reply later, or…

    Dev tools · 21d ago · talanoa.email

  • CoreSpeed▲332

    One MCP for everything your agents need: apps, memory, tools

    Dev tools · 29d ago · corespeed.io

Source: Show HN post ↗

Launched alongside, November 2024

the whole month →
  • Lovable▲1,477

    Hey HN! Previous CERN physicist turned hacker here. We've developed a way to make AI coding actually work by systematically identifying and fixing places where LLMs typically fail in full-stack development. Today we're launching as Lovable (previously gptengineer.app) since it's such a big change. The problem? AI writing code typically make small mistakes and then get stuck. Those who tried know the frustration. We fixed most of this by mapping out where LLMs fail in full-stack dev and engineering around those pitfalls with prompt chains. Thanks to this, in all comparisons I found with: v0,…

    AI · 2024 · lovable.dev

  • Superchat▲1,427

    AI Agents for WhatsApp Business, Instagram & Co

    Growth · 2024 · superchat.com

  • Postiz▲1,188

    Streamline your social media with Postiz. Schedule posts, analyze performance, and manage all accounts in one place.

    Dev tools · 2024 · postiz.com

  • I wasn't quite sure if this qualified as "Show HN" given you can't really download it and try it out. However, dang said[0]: > If it's hardware or something that's not so easy to try out over the internet, find a different way to show how it actually works—a video, for example, or a detailed post with photos. Hopefully I did that? Additionally, I've put code and a detailed guide for the netboot computer management setup on GitHub: https:&#x2F;&#x2F;github.com&#x2F;kentonv&#x2F;lanparty Anyway, if this shouldn't have been Show HN, I apologize! [0]…

    Dev tools · 2024 · lanparty.house

  • Unlock a new level productivity with AI, Cloud Sync and more

    Work · 2024 · raycast.com

  • Cap▲1,047

    Beautiful screen recordings, owned by you. 100% open source.

    Dev tools · 2024 · cap.so