CSVTool.io
Free CSV tools that run entirely in your browser
CSVTool.io is a free toolkit of 62 browser-based CSV tools: viewer, editor, validator, dedupe, compare, split, repair with an auditable change trail, and converters to Excel, JSON, SQL and more. Everything runs locally in your browser with web workers - no uploads, no signup, no server. Your files never leave your device, and the viewer opens files too big for Excel.
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