CSVMate

What it does

Other tools validate a file. CSVMate validates your pipeline. Define schemas once, accept files via SFTP, Web, or UI, get instant failure notifications. The difference: it's built for ongoing, automated ingestion at scale - with zero infrastructure on your side.

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  CSV Schema and Validator2018 · github.com · ▲8

  CSV Validation Tool and API (CSV Schema RI). Contribute to digital-preservation/csv-validator development by creating an account on GitHub.

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  GraphQL Inspector2019 · the-guild.dev · ▲107

  Bulletproof your GraphQL API

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  Validation of CSV file against user defined schema (returns back object with data and invalid messages)2018 · github.com · ▲3

  CSV File Validator

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  JSON storage bins with schema validation2018 · npoint.io · ▲74
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  The best things in life are free, including this CSV generation tool2019 · tonic.ai · ▲5

  Keep CSV, JSON, and XML files safe while generating realistic test data for development and pipelines. See why it matters.

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  Csvlint.go, command line tool for validating CSV files against RFC 41802014 · github.com · ▲10

  library and command line tool that validates a CSV file - Clever/csvlint

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  Dev tools · 3d ago · dev-null.sh

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  Dev tools · 28d ago · github.com

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  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

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  One-page websites from real Google Maps reviews

  AI · Apr 2026 · brila.ai

• AG
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  Life & fun · Apr 2026 · jaso1024.com

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  Built a ~9M param LLM from scratch to understand how they actually work. Vanilla transformer, 60K synthetic conversations, ~130 lines of PyTorch. Trains in 5 min on a free Colab T4. The fish thinks the meaning of life is food. Fork it and swap the personality for your own character.

  AI · Apr 2026 · github.com

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  AI · Apr 2026 · fathom.ai

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  Life & fun · Apr 2026 · sam-burns.com

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  I built a frontpage for personal blogs▲783

  With social media and now AI, its important to keep the indie web alive. There are many people who write frequently. Blogosphere tries to highlight them by fetching the recent posts from personal blogs across many categories. There are two versions: Minimal (HN-inspired, fast, static): https://text.blogosphere.app/ Non-minimal: https://blogosphere.app/ If you don't find your blog (or your favorite ones), please add them. I will review and approve it.

  AI · Apr 2026 · text.blogosphere.app