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Clean, transform and prepare CSV & Excel files in seconds.

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Website, pricing, platforms and company facts side by side.
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| Website | app.factsprep.com | opalstack.com |
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| Company | 2026 | — |
| Listed in |
In their own words, as submitted to SaaSHub.


FactsPrep CSV Cleaner is a simple, practical tool for cleaning and preparing CSV and Excel files before analysis, reporting, or importing data into other systems. Clean messy datasets with common data-cleaning operations such as removing duplicates, handling missing values, standardizing data,...
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As answered by people managing FactsPrep CSV Cleaner and Opalstack.
FactsPrep CSV Cleaner's answer
FactsPrep CSV Cleaner was originally built as an internal tool to solve real-world data preparation needs in a recruitment environment. It was used locally for over a year to clean, transform, and prepare CSV and Excel data as part of everyday workflows. After seeing how useful it was in practice, the idea grew to make the tool publicly available so that other teams and professionals could benefit from the same simple approach to data preparation.
FactsPrep CSV Cleaner's answer
FactsPrep CSV Cleaner focuses on making everyday CSV and Excel data preparation simple and practical. Users can clean, transform, filter and organize their data through a straightforward browser-based workflow without complicated setup.
FactsPrep CSV Cleaner's answer
FactsPrep CSV Cleaner is designed for users who want to prepare CSV and Excel files quickly without the complexity of larger data platforms. It provides practical data cleaning and transformation tools in a simple, easy-to-use workflow.
FactsPrep CSV Cleaner's answer
HR, recruiters, sales and marketing teams, business users, and anyone who regularly works with CSV or Excel files and needs to clean, organize or transform data before using it elsewhere.
FactsPrep CSV Cleaner's answer
Python, Streamlit, Pandas, FastAPI, Supabase, Lemon Squeezy, Resend, Cloudflare, Railway
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