Coming Soon

CSV tools that respect
your privacy

Free, client-side CSV conversion and manipulation tools. Everything runs in your browser — your data never leaves your device. No uploads, no servers, no tracking.

Tools in the works

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CSV to JSON

Convert CSV files to clean, structured JSON

XLS

CSV to Excel

Export CSV data to .xlsx spreadsheets

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CSV Viewer

View and explore CSV files in a sortable table

⊕

Merge CSVs

Combine multiple CSV files into one

CSV

JSON to CSV

Convert JSON arrays to downloadable CSV

✎

CSV Editor

Edit cells, add rows, and fix data inline

100% client-side processing

Every tool on CSV Tools runs entirely in your browser using JavaScript. Your files are never uploaded to any server. There's nothing to trust because there's nothing to send. Open the network tab and see for yourself.

CSV tools that respect your privacy