A Windows text-data editor with a free Lite edition limited to saving 2,500 rows and a paid Pro edition.
Freemium
Modern CSV
A desktop delimited-file editor for Windows, Mac and Linux, with a permanent Free edition and paid Premium features.
About Modern CSV
Modern CSV is a desktop editor and viewer for CSV and other delimited text files, including TSV, PSV and files with other delimiters. It runs on Windows, Mac and Linux. The homepage describes it as a tool for analyzing data, checking files before uploading them to databases, editing configuration files and maintaining lists, and says it was built to address limitations of spreadsheet programs when handling delimited files.
The editor supports moving, duplicating and splitting cells, with many commands applying to several rows, columns or cells at once. It includes find and replace, sorting, filtering, and built-in tools for statistics, column analysis, unique values and pivot tables. A read-only mode is provided for loading large files. The homepage states that the application operates on the user's device and that data is not sent to the cloud, though some optional settings and features are not described in that detail. Several capabilities, including date and time conversion, table transposition, text case conversion and PDF export, are listed as Premium features, and column lookup is listed as a Premium Business feature. A permanent Free edition is available.
Key features
- Multi-row, column or cell commands that apply to several items at once
- Find and Replace with match highlighting and preview before replacing
- Stable column sorting by double-clicking the column label
- Statistics, column analysis, unique value browsing and pivot tables
- Support for many delimiters and character encodings, including UTF-8 and UTF-16
- Read-only mode for loading large files with a small memory footprint
Best for: People who regularly edit, check or analyze CSV, TSV or other delimited files on a desktop computer and need more control than a spreadsheet program provides.
Good for
- Operates on the user's device, and the homepage states that data is not sent to the cloud
- Read-only mode is described as loading large files quickly, with the homepage claiming up to 11 times faster than Excel
- Described as a lightweight application that offers a consistent experience across Windows, Mac and Linux
Watch out for
- Several listed capabilities are Premium features, and column lookup is a Premium Business feature
- Available only as a desktop application for Windows, Mac and Linux
Modern CSV at a glance
- Website
- moderncsv.com
- Category
- Online Tools › Text Tools
- Type
- Online tool
- Pricing
- Freemium
- Open source
- Not stated
- Last checked
- Oct 9, 2026 · Online when checked
- Listed
- Oct 9, 2026
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Modern CSV FAQ
Does Modern CSV send my data to the cloud?
The homepage states that data remains local, is never sent to the cloud, and that the application operates entirely on the user's device. Optional settings such as auto-refresh are not described in the same detail, so users with specific privacy requirements should review the application's documentation.
Which features require a Premium edition?
The homepage lists date and time format conversion, table transposition, text case conversion, duplicating, renaming or deleting files within the program, and printing or exporting to PDF as Premium features. Column lookup is listed as a Premium Business feature.
Can it open large CSV files?
The application includes a read-only mode that loads large files quickly with a small memory footprint, according to the homepage.
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