METAMATCH

What it does

This service quickly compares two CSV files using a custom algorithm, and it's a great way to compare any two datasets. Then, it creates a new dataset with the found items and downloads it directly to your PC.

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  Compare Lists Online2025 · comparelists.org · ▲17

  Fast & Free list comparison tool

• DD
  Data Diff – compare tables of any size across databases2022 · ▲127

  Gleb, Alex, Erez and Simon here – we are building an open-source tool for comparing data within and across databases at any scale. The repo is at https://github.com/datafold/data-diff, and our home page is https://datafold.com/. As a company, Datafold builds tools for data engineers to automate the most tedious and error-prone tasks falling through the cracks of the modern data stack, such as data testing and lineage. We launched two years ago with a tool for regression-testing changes to ETL code…

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  All-pair similarity search on millions of sets in Python and on laptop2018 · github.com · ▲123

  All-pair set similarity search on millions of sets in Python and on a laptop - GitHub - ekzhu/SetSimilaritySearch: All-pair set similarity search on millions of sets in Python and on a laptop

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  MessyMatchJun 2026 · messymatch.com · ▲2

  Compare, merge and split messy files in seconds.

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  Files Matching and Comparison Tool2025 · filesmatch.com · ▲7

  Stop doing VLOOKUPs. We'll find your matches.

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  Comparelists.org – Instantly Compare Two Lists, Find Differences2025 · comparelists.org · ▲10

  Hey HN, I got tired of manually comparing two lists (think: emails, product SKUs, code, whatever) and built CompareLists.org to make it painless. You just paste your two lists, hit compare, and instantly see what’s unique to each list, what matches, and any duplicates. It handles thousands of lines, works right in your browser (no data leaves your device), and you can export results as CSV/TXT/JSON. There are options for case sensitivity, whitespace, and more. It’s free and there’s no signup. I’d love for you to try it out and let me know what you think—or if there’s a feature you…

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  WallHop – 12ft.io is gone, so I built a replacement▲287

  wallhop is a free paywall bypass. Paste any article link to read it without paywall popups, ads or clutter. No signup, no extension. A simple 12ft.io alternative.

  Growth · 11d ago · wallhop.io

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  Prefer▲201

  The execution layer for AEO

  Growth · 22d ago · tryprefer.com

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  MakerMap▲197

  A living map of makers and what they’re building

  Growth · 26d ago · makermap.lol

• AF
  A friend and I spent 6 years making a simulation game, finally released▲1,157

  I've seen some interests in (simulation) video games here on HN so I thought I'd share a short version of our story. More than 6 years ago, me and my friend from university were playing around with an idea of making a game we always wanted to play. We worked on it on weekends but the progress was quite slow, especially due to so many dead ends and wasted effort. Eventually however, we solidified our direction and decided to take the risk to resign from our well paid SWE jobs and work on it full time. It took more than a year but yesterday we have finally released it on Steam:…

  Life & fun · 2022

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  A central bank simulator game with a realistic economic model▲815

  Life & fun · 2022 · benoitessiambre.com

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  I stripped DALL·E Mini to its bare essentials and converted it to Torch▲663

  min(DALL·E) is a fast, minimal port of DALL·E Mini to PyTorch - kuprel/min-dalle

  Life & fun · 2022 · github.com

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  Untitled UI Icons▲634

  1,100+ free Figma icons for modern UI design.

  Dev tools · 2022 · untitledui.com

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  MakerBox▲621

  600 tools with generous free plans for indie entrepreneurs

  Dev tools · 2022 · makerbox.club

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  Typedream CMS▲593

  Display your Notion data beautifully on your site, no-code

  Dev tools · 2022 · typedream.com