Modern CSV

Modern CSV provides a graphical interface for opening, viewing, and editing CSV‑type files on Windows, macOS, and Linux. It supports common operations such as moving columns, duplicating rows, splitting cells, and applying commands to multiple rows, columns, or cells at once. Keyboard shortcuts are available for most actions, and users can define custom shortcuts as needed.

The application includes a find/replace tool with live highlighting and preview of replacements, stable column sorting, and a filter syntax for narrowing displayed data. Rows and columns can be hidden manually, and the editor is designed to handle large files efficiently without relying on cloud services, keeping all data local.

Targeted at professionals ranging from data scientists and marketers to engineers and academic staff, Modern CSV aims to address limitations of traditional spreadsheet programs when working with CSV, TSV, DSV, and similar formats, offering a consistent experience across operating systems.