DataSeed

What it does

DataSeed is a Chrome extension that generates realistic test data with hundreds of built-in generators, custom templates, and AI-powered intelligence. Automatically fill forms and create contextual data in seconds. Perfect for developers, QA engineers, and anyone who needs quick, realistic test data.

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  Mock API Generator2021 · ▲548

  Generate custom data & API to build apps in less than 30s

• VO
  Visprex – Open-source, in-browser data visualisation tool for CSV files2024 · docs.visprex.com · ▲194

  Hello HN. I've always found writing data visualisation scripts boring and repetitive in data science workflows earlier in my career, so I built this tool to automate it. The available methods are based on my experience in econometrics where histograms and scatterplots were the starting points to check data distributions. The link is to the documentation and the app is freely available at https://visprex.com, and if you're curious about the implementation it's open source at https://github.com/visprex/visprex. I'd appreciate any comments and feedback!

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  Datastripes LensJan 2026 · datastripes.com · ▲94

  Turn any web data into instant, interactive charts

• GW
  Generate Web Interfaces from DataFeb 2026 · github.com · ▲39
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  DataFabXNov 2025 · ▲6

  Synthetic Test Data Generator

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  Dataherald2022 · ▲83

  The easiest data visualization tool you've every seen

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  Dograh▲592

  The open source VAPI alternative

  Dev tools · 26d ago · dograh.com

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  Meridian▲530

  Don't let your work go unnoticed. Get promoted!

  Dev tools · 21d ago · meridiona.com

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  x1▲516

  Lovable for iPhone apps go from idea to App Store

  Dev tools · 12d ago · x1.new

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  Open-Source eInk Bike Computer▲411

  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

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  Nuphos▲380

  The AI-Native DevOps Workspace.

  Dev tools · 25d ago · nuphos.ai

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  Lettertrace▲375

  Track your AI visibility for free (using your own API keys!)

  Dev tools · 26d ago · lettertrace.com

• GP
  Gemini Pro 3 imagines the HN front page 10 years from now▲3,346

  Life & fun · Dec 2025 · dosaygo-studio.github.io

• JG
  Jmail – Google Suite for Epstein files▲1,557

  Hi everyone! My name's Luke and I made the original Jmail here alongside Riley Walz. We had a ton of friends collaborate on building out more of the app suite last night in lieue of DOJ's "Epstein files" release. Please AMA!

  Life & fun · Dec 2025 · jmail.world

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  Loki.Build▲746

  Design and ship studio-grade landing pages with AI

  AI · Dec 2025 · loki.build

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  PlanEat AI▲733

  AI turns your health goals into a 7-day menu & grocery list

  AI · Dec 2025 · planeatai.com

• 2G
  22 GB of Hacker News in SQLite▲730

  Community, All the HN belong to you. This is an archive of hacker news that fits in your browser. When I made HN Made of Primes I realized I could probably do this offline sqlite/wasm thing with the whole GBs of archive. The whole dataset. So I tried it, and this is it. Have Hacker News on your device. Go to this repo (https://github.com/DOSAYGO-STUDIO/HackerBook): you can download it. Big Query -> ETL -> npx serve docs - that's it. 20 years of HN arguments and beauty, can be yours forever. So they'll never die. Ever. It's the unkillable static archive of HN and it's…

  Dev tools · Dec 2025 · hackerbook.dosaygo.com

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  CyberCut AI▲723

  AI video studio for viral social clips

  AI · Dec 2025 · cybercut.ai