CSV viewer and cleaner CSV viewer and cleaner

Input and settings

Input and settings

Identifiers and leading zeros stay as text. Formula protection prefixes formula-like cells with an apostrophe in CSV and TSV; JSON retains the original cleaned strings. Do not turn protection off for untrusted data.

CSV viewer and cleaner

Open a CSV or TSV file locally, clean rows without changing identifiers into numbers, and inspect a searchable table. Export CSV, TSV and JSON.

Your table is processed on your device, not uploaded. Maximum: 5 MiB, 20,000 rows, 128 columns and 500,000 cells. This is a data cleaner, not a spreadsheet formula evaluator.

Quick start

CSV viewer and cleaner

  1. Choose an encoding before opening a file, or paste a table.
  2. Review delimiters, the header row and cleaning options.
  3. Clean, inspect the preview, then export the full table.

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