FastCSV: CSV & TSV Data Editor

Edit, Clean & Compare CSV Data

Only for Mac

$7.99

Mac

CSV and TSV editing for Mac: search, replace, filter, sort, remove duplicates, clean data, inspect statistics, compare files, and convert text encodings or line endings. FastCSV is a native Mac editor for inspecting, editing, cleaning, and comparing CSV and TSV files. It brings everyday delimited-data tasks into one focused workspace—from a quick cell correction to reviewing files with a large number of rows. KEY FEATURES • Create, open, edit, and save CSV, TSV, and text files • Edit cells directly; copy, cut, and paste multiple cells • Add, delete, or duplicate rows and columns; rename or hide columns • Search all or selected columns, use regular expressions, replace values, and preview replacements • Build combined text, number, date, and regular-expression filters • Sort by multiple text, number, or date columns • Find duplicates by selected columns and choose which rows to keep • Trim whitespace, change letter case, convert full-width and half-width text, and remove blank rows, blank columns, or line breaks within cells • Inspect column counts, blanks, unique and duplicate values, minimum, maximum, sum, average, median, and text lengths • Compare files by row number or key columns, then export the differences • Save, run, import, and export reusable cleanup presets • Detect and convert UTF-8, Shift JIS/CP932, EUC-JP, ISO-2022-JP, UTF-16, and UTF-32 • Detect and convert LF, CRLF, and CR line endings; control delimiters and BOM settings • Choose the rows, header behavior, and quoting rules used when saving • Use autosave, recent files, and external-change detection MADE FOR • Developers and operations teams working with logs, catalogs, and exported data • Ecommerce teams maintaining product feeds and inventory lists • Analysts and office users preparing data for spreadsheets or other systems • Anyone who needs to remove duplicates, normalize text, or check two data files for changes BUILT FOR LARGE FILES For larger documents, FastCSV uses a row index and cache to load the rows it needs instead of expanding the entire file in memory. Loading, search, filtering, sorting, duplicate detection, statistics, comparison, and saving include progress feedback and cancellation. PRIVACY File reading, editing, searching, cleanup, comparison, and saving are performed on your Mac. FastCSV has no AI features, cloud sync, or account system. There are no in-app purchases or subscriptions.

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The developer, Moca LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

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    Information

    Seller
    MOCHA, LIMITED LIABILITY CO.
    Size
    3.2 MB
    Category
    Productivity
    Compatibility
    Requires macOS 15.0 or later.
    • Mac
      Requires macOS 15.0 or later.
    Languages
    English and Japanese
    Age Rating
    4+
    Copyright
    © 2026 MOCHA, LIMITED LIABILITY CO.
  • Privacy Policy

    • Supports

    • Family Sharing

      Up to six family members can use this app with Family Sharing enabled.

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