DevNestro

Tools · Data Tools

CSV / Excel Data Cleaner

Analyze problems first. Nothing is changed until you apply operations.

Drop a CSV or XLSX file

0Rows
0Columns
0Rows before
0Rows after
0Removed

Possible problems

    Cleaning operations

    Find duplicates by

    Find / replace

    Cleaning is local. SheetJS loads only if you open an Excel file. API: None.

    Read the original guide: Clean a CSV or Excel export before you import it.

    Related tools

    Developer Tools

    Universal Data Converter

    Convert structured data between JSON, CSV, XML and YAML.

    Open Tool →
    Text Tools

    Word Counter

    Count words, characters, sentences, paragraphs, and reading time as you type.

    Open Tool →
    Text Tools

    Remove Duplicate Lines

    Deduplicate lists, trim whitespace, drop blank lines, and sort the result.

    Open Tool →
    An unhandled error has occurred. Reload Dismiss

    Rejoining the server...

    Rejoin failed... trying again in seconds.

    Failed to rejoin.
    Please retry or reload the page.

    The session has been paused by the server.

    Failed to resume the session.
    Please retry or reload the page.