ColumnLens
Your data as a 3D city. SQL engine meets GPU rendering.
What it does
Native C++ desktop app with built-in SQL engine, interactive charts, 3D city visualization, text toolkit, and Lua scripting. Opens 5GB+ CSV, JSONL, Parquet, Excel & SQLite files in seconds. Built for data engineers, IoT teams, analysts, and anyone working with massive structured data. No Electron. No cloud.
Does a similar job
all alternatives →- IVI've built a C# IDE, Runtime, and AppStore inside Excel2023 · querystorm.com · ▲670
The project is called QueryStorm. It uses Roslyn to offer C# (and VB.NET) support in Excel, as an alternative to VBA. I've posted about it before, but a lot has changed since then so figured I'd share an update. The current version includes a host of new features, namely a C# debugger, support for NuGet packages, and the ability to publish Excel extensions to an "AppStore" (which is essentially a NuGet repository). The AppStore can be used by anyone with the (free) runtime component. Another great addition is the community license, which is a free license for individuals and small companies…
- 1Y10 Years to Build a Free SQL Editor2024 · timestored.com · ▲355
I have spent large parts of the last 10+ years building an SQL Editor. The tool is targeted at data analysts, a lot of effort has gone into charting, visualizing and excel export. If this sounds useful to you, it's Free, please give it a try and let me know any feedback.
- CQClangQL – Query C++ codebases using SQLite2021 · github.com · ▲73
- DADataRamen, a Fast SQL Explorer with Automatic Joins and Data Navigation2025 · dataramen.xyz · ▲48
I built DataRamen, a local-first SQL explorer that helps you get the data you need fast, without writing repetitive queries every time. You run it locally from the CLI (no cloud version yet), connect your databases, and you're ready to go. The goal is to let you explore and query data like you would in a spreadsheet: intuitive, fast, and without friction. Key features: - Automatic joins & related data navigation: Right-click any row to instantly see related records in other tables (based on foreign keys or references). - Keyboard-driven UI: Hit N to jump to a table, F to filter, and so on,…
- CGCSV GB+ by Data.olllo – Open and Process CSVs Locally2025 · apps.microsoft.com · ▲51
I built CSV GB+ by Data.olllo, a local data tool that lets you open, clean, and export gigabyte-sized CSVs (even billions of rows) without writing code. Most spreadsheet apps choke on big files. Coding in pandas or Polars works—but not everyone wants to write scripts just to filter or merge CSVs. CSV GB+ gives you a fast, point-and-click interface built on dual backends (memory-optimized or disk-backed) so you can process huge datasets offline. Key Features: Handles massive CSVs with ease — merge, split, dedup, filter, batch export Smart engine switch: disk-based "V Core" or RAM-based "P…
More dev tools this month
the category →
OpenTrailPaper is open-source bike computer firmware for the LilyGO T5S3 4.7" E-Paper PRO. It supports offline maps, GPX routes, FIT recording and Bluetooth sensors.
Dev tools · 3d ago · opentrailpaper.com
Lettertrace▲375Track your AI visibility for free (using your own API keys!)
Dev tools · 26d ago · lettertrace.com
Launched alongside, March 2026
the whole month →
Switch from ChatGPT to Claude with import memory feature
AI · Mar 2026 · claude.com
