SheetRows

What it does

Collection of free online tools for CSV and Excel files. Merge, split, subtract, compare, combine, update data, add country codes, and convert between Excel and PDF. The key difference? Every operation runs 100% in your browser. Your files never leave your device, no uploads, no servers, no sign-ups. Just drag, drop, and download. Built for marketers, data analysts, and anyone who works with spreadsheets daily but doesn't want to install software or trust cloud services with sensitive data.

Free online CSV and Excel tools. Compare, subtract, split, combine, merge files and add country codes. 100% browser-based, no upload, no sign-up.

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  Row Zero2024 · rowzero.io · ▲129

  The fastest spreadsheet

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  We built the fastest spreadsheet2024 · rowzero.io · ▲274

  Row Zero is the best spreadsheet for big data. Build secure spreadsheets connected to your data warehouse with a bigger, faster Excel alternative in the cloud.

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  SplenSheet2025 · splensheet.com · ▲7

  Free online spreadsheet editor

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  Privacy-first cross platform spreadsheet pipeline app2024 · tablesmith.io · ▲17

  In my previous role at a small startup, I frequently developed simple scripts to assist recruiters and marketing professionals in handling data processing tasks on Excel or CSV files. These tasks were typically straightforward and repetitive, stemming from the periodic export of data. This experience sparked the idea to create a straightforward tool dedicated to such functionalities(also mobile friendly, as they occasionally need to process data on their smartphones). There are powerful tools like Power Query and Tableau, but they often prove too complex for non-technical users to navigate…

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  5 Kb Spreadsheet for the Web with copy paste2020 · renanlecaro.github.io · ▲23

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  Lofi Cities – Pixel-art city nights with browser-generated lofi▲319

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  happycapy▲1,365

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  KiloClaw▲868

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  Lovon AI Therapy▲801

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  AI · Feb 2026 · lovon.app

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  I spent 3 years reverse-engineering a 40 yo stock market sim from 1986▲721

  Hello my name is Ben Ward for the past 3 years I have been remastering the financial game Wall Street Raider created by Michael Jenkins originally on DOS in 1986. It has been a rough journey but I finally see the light at the end of the tunnel. I just recently redid the website and thought maybe the full story of how this project came to be would interest you all. Thank you for reading.

  Work · Feb 2026 · wallstreetraider.com