CSV Cleaner
Rons Data Edit
Csv Easy
Clean My CSV
Clean Spreadsheets
Rons Data Stream
CSV Normalize
neatcsv gives you 14+ data cleaning tools that run 100% in your browser. Remove duplicates, fix dates, validate emails, normalize numbers — no uploads, no server, fully GDPR compliant. Export as CSV, Excel or JSON.

Deno
Full-stack Javascript Components for one-dev armies

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Website, pricing, platforms and company facts side by side.
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| Website | neatcsv.com | nullstack.app |
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| Company | Startup from Cyprus · 2026 | — |
| Listed in |
In their own words, as submitted to SaaSHub.

neatcsv is a browser-based data cleaning tool for CSV, Excel (.xlsx/.xls) and JSON files. All processing happens locally in your browser — your data is never uploaded to any server. This makes neatcsv fully GDPR compliant and safe for sensitive datasets like customer lists, financial records, or...
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Full-stack with Nullstack - Part 3
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A secure runtime for JavaScript and TypeScript built with V8, Rust, and Tokio.
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Rons Data Edit is a professional CSV and Tabular Text Editor for Windows that provides a wealth of tools. The power and speed of the application allows to handle large files with ease.
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The ultimate CSV Editor. Import, tweak, fix, analyse and convert.
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Remove duplicate rows from a CSV file instantly. Smart matching catches case and spacing differences a basic dedupe misses. Your file never leaves your browser, nothing is uploaded to any server.
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Automatically clean customer data with a few clicks
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