CSV/JSON → Table: Auto-header, union of keys, searchable table

Supports CSV (with/without header), JSON (array/object/NDJSON), search, pagination, page size, and Excel export — all client-side, Power by dee4u

Choose CSV/JSON file

CSV: Has header?

Rows/page

Drag & drop a file here, or use the file picker above

Or paste raw text below and hit Parse

Paste text (CSV/JSON/NDJSON)

How to

Drag & drop a CSV/JSON file or click to select
Or paste raw text into the Paste box and hit Parse
For CSV, choose whether the first row is a header
Search, tune page size, and export to Excel

Tip: press Ctrl+V to paste quickly; use multiple keywords separated by spaces.

About this tool

This tool previews and explores medium-sized data in the browser, ideal for inspecting columns/keys, unifying headers, and exporting to Excel. For very large files, split them first.

CSV/JSON → Table: Auto-header, union of keys, searchable table

How to

About this tool

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