The CSV Pro

What it does

Every CSV converter online makes you upload your file to a server. Fine for a grocery list, less fine for a customer export. The CSV Pro runs entirely in your browser. Nothing is uploaded, nothing is stored. 20 tools: CSV to JSON, Excel, SQL, XML, Markdown. Excel to CSV, JSON, SQL, HTML. Plus a viewer with search and sort, split, merge, dedupe and a delimiter converter. No account, no limits, no watermark.

Convert, view, split, merge, and clean CSV files free. CSV to JSON, Excel, SQL, Markdown and more. 100% browser-based: your data never leaves your device.

Convert, view, split, merge, and clean spreadsheet data with tools that run entirely on your device. No uploads, no accounts, no “free trial”. Just the fix. → 3 rows parsed. Quoted commas handled. → Nothing uploaded. Ever. 20 fast fixes for the files everyone exports and nobody enjoys. Each one runs locally in your browser with proper CSV parsing underneath: quoted fields, embedded commas, and weird encodings included. These tools are JavaScript running on your machine. There is no server to upload to, which means no retention policy to trust. Disconnect from the internet and they keep working. Quoted fields, commas inside cells, line breaks inside quotes, BOMs, semicolon files from…from thecsv.pro

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  Convert Large CSV/XLSX to JSON or XML in Browser2025 · csvforge.com · ▲41

  Hello HN, I'm excited to share a project I've been working on: A simple, fast way to process huge CSV and XLSX files directly in your browser and export them as clean JSON or XML Here's a few things that makes this converter different: - runs in the browser - all parsing and conversion is client side can handle data any size data - automatically detects delimiters, encodings, and data types as it parses - Live preview with column renaming, search/replace, and data cleanup - Export to JSON or XML — clean, structured output that can be used for API or Databases backstory: I built this…

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  ExcelJSON – Convert JSON To/from CSV, TSV Easily2017 · exceljson.com · ▲50
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