Alternatives
Products that do what Compare Tool does
Two files. One truth.
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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…
2025 · comparelists.org
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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…
2022
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I created an add-on for Google Sheets called Flookup, and it comes both as a free version and a VERY AFFORDABLE paid version. At its core, Flookup is a fuzzy matching add-on that helps you manage text that is less than a 100% match. Beyond that it can be used to: 1. Search for and match data regardless of whether it contains typos. 2. Highlight and delete duplicates duplicates even if the data has mismatched text. 3. Calculate the percentage similarity between strings. 4. Extract unique values from any column based on percentage similarity. 5. Sum and find the average of numbers based on…
2020
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2023 · equals.app
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2020 · analysis-tools.dev
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Hello HN! I've developed a tool named SheetSQL that allows you to query, join, export, and schedule your queries to Google Sheets through a straightforward SQL interface in the browser. This tool is a simple, first iteration of the idea, so I'm eager to receive feedback on it. You can contact me at taras [at] sheetsql.io :D. I'd love to find out if it could be useful for folks out there! As someone working in fintech, I constantly deal with sheets and often find it challenging to perform seemingly simple tasks like JOINs natively. However, I'm familiar with SQL, which inspired the creation…
2024 · sheetsql.io
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Compare CSV files with 10s of millions of rows in seconds.
Jan 2026 · lake3tools.com
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https://github.com/denvaar/pgdiff I cobbled together various programs into a bash script to compare how data changes between two points in time. My idea was basically to have a `git diff` but for data inside postgres. I wanted a util like this to help get to know a new code base: Interact with an app and watch how the data changes. You run the script with a given key (anything) before interacting with an app, then run it again with the same key to see the data diff. I'm not much of a bash scripter, as you can probably see from the script, but it was a fun and useful tool…
2021
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2010 · pyspread.sourceforge.net
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Hey Hacker News, Today we're launching Equals. Equals is a spreadsheet with native connections to your SQL databases and data warehouses. You can write SQL right in your spreadsheet. Equals was born out of a shared frustration of me and my co-founder. Despite the avalanche of new data tools over the last decade – nothing actually seemed better than a spreadsheet. Nothing was as flexible, malleable, and as easy to just dive in and play around with some data. In fact, you nearly always ended back in a spreadsheet regardless of what fancy set up you had: when something broke, when a chart in a…
2022
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