Qualidata
Upload your Excel, find out how reliable your data is
What it does
Have you ever made a decision based on data that turned out to be wrong? Data Quality Auditor analyzes your CSV or Excel file in seconds and delivers a 0–100 quality score with prioritized issues: missing values, duplicates, invalid formats, outliers, and inconsistencies. No setup, databases, or statistical knowledge required. Upload your file and get column profiling, real examples of issues, and a downloadable Excel report. Free, no sign-up required.
Does the same job
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- IBImpler – Build CSV/XlS import experience faster in your tech projects!2023 · impler.io · ▲10
I'm pleased to introduce Impler to all, Add readymade CSV and Excel file import experience in products within minutes. Save months of work in developing data import experience from scratch. Impler allows you to embed data import widget into your app, with the facility to upload, map, and validate data using a hybrid validation engine. Impler is designed to import and validate thousands of records in seconds. Impler is open-source. Check it out at https://github.com/implerhq/impler.io Please try the product and offer your honest opinion if you have a moment. I really want…
- AOAn open-source tool that semantically profiles your data using LLMs2024 · github.com · ▲10
The problem we solve is profiling tables: this is the initial step where you need to understand the table and identify any anomalies. During the process, many small decisions require semantic understanding. For example, missing values are normal for 'deathdate' (still alive) but abnormal for 'name.' For outliers, 100 for ages is fine, but some are -1, which is impossible! We use LLMs to semantically understand your tables and detect anomalies. You can try it by uploading a CSV, and we will email back the profile: https://cocoon-data-transformation.github.io/page/ Let me…
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Open-source GTM skills for technical founders
Dev tools · 29d ago · gtmcofounder.com
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 · 2d ago · opentrailpaper.com
Launched alongside, August 2026
the whole month →- TL
Life & fun · 10d ago · louisabraham.github.io
- SA
Hello HN! I found that picking out plausible but diverse skin tones for my digital art and game development projects was kind of difficult, and I got curious about if there was a way to define a color space that made it easy. I've built a color picker and procedural generation algorithm based on the space as well as a bunch of other fun js features and demos throughout the page that use the equations. If you find it interesting, I have lots of explanations of how I built it and what properties the space has. The methodology might be a bit shaky, but hopefully the result is as helpful for…
Life & fun · Aug 2026 · toneyalexander.github.io
I trained a 125M-parameter transformer to autocomplete piano performances in real time (~108 notes/sec on an iPhone 15). The idea is basically GitHub Copilot or Tabnine, except instead of prompting it with code, you prompt it by playing a few notes on a MIDI piano. The model then continues what you played, entirely on-device. The app is free if anyone wants to try it. Happy to answer questions about the model, training, Core ML, or the many things that didn't work.
AI · 17d ago · simedw.com