253 downloads per month
Used in qsv

MIT license

300KB
6.5K SLoC

csvlens

csvlens is a command line CSV file viewer. It is like less but made for CSV.

Demo

Usage

Run csvlens by providing the CSV filename:

csvlens <filename>

Pipe CSV data directly to csvlens:

<your commands producing some csv data> | csvlens

Key	Action
`hjkl` (or `← ↓ ↑→` )	Scroll one row or column in the given direction
`Ctrl + f` (or `Page Down`)	Scroll one window down
`Ctrl + b` (or `Page Up`)	Scroll one window up
`Ctrl + d` (or `d`)	Scroll half a window down
`Ctrl + u` (or `u`)	Scroll half a window up
`Ctrl + h`	Scroll one window left
`Ctrl + l`	Scroll one window right
`Ctrl + ←`	Scroll left to first column
`Ctrl + →`	Scroll right to last column
`G` (or `End`)	Go to bottom
`g` (or `Home`)	Go to top
`<n>G`	Go to line `n`
`/<regex>`	Find content matching regex and highlight matches
`n` (in Find mode)	Jump to next result
`N` (in Find mode)	Jump to previous result
`&<regex>`	Filter rows using regex (show only matches)
`*<regex>`	Filter columns using regex (show only matches)
`TAB`	Toggle between row, column or cell selection modes
`>`	Increase selected column's width
`<`	Decrease selected column's width
`Shift + ↓` (or `Shift + j`)	Sort rows or toggle sort direction by the selected column
`#` (in Cell mode)	Find and highlight rows like the selected cell
`@` (in Cell mode)	Filter rows like the selected cell
`y`	Copy the selected row or cell to clipboard
`Enter` (in Cell mode)	Print the selected cell to stdout and exit
`-S`	Toggle line wrapping
`-W`	Toggle line wrapping by words
`f<n>`	Freeze this number of columns from the left
`r`	Reset to default view (clear all filters and custom column widths)
`H` (or `?`)	Display help
`q`	Exit

-d <char>: Use this delimiter when parsing the CSV (e.g. csvlens file.csv -d '\t').

Specify -d auto to auto-detect the delimiter.
-t, --tab-separated: Use tab as the delimiter (when specified, -d is ignored).
-i, --ignore-case: Ignore case when searching. This flag is ignored if any uppercase letters are present in the search string.
--no-headers: Do not interpret the first row as headers.
--columns <regex>: Use this regex to select columns to display by default.
--filter <regex>: Use this regex to filter rows to display by default.
--find <regex>: Use this regex to find and highlight matches by default.
--echo-column <column_name>: Print the value of this column at the selected row to stdout on Enter key and then exit.

You can download the tar.xz or zip file matching your operating system from the releases page, extract it and execute the csvlens binary.

For macOS, csvlens is available on Homebrew. You can install it using:

brew install csvlens

csvlens is available in the official repositories. You can install it using:

pacman -S csvlens

For Windows, csvlens is available on winget. You can install it using:

winget install --id YS-L.csvlens

csvlens is available as a FreeBSD pkg. You can install it using:

pkg install csvlens

csvlens is available on pkgsrc. If you're using NetBSD you can install it using:

pkgin install csvlens

csvlens is available as an OpenBSD port. If you're using OpenBSD 7.6-current or later, you can install it using:

doas pkg_add csvlens

If you have Rust installed, csvlens is available on crates.io and you can install it using:

cargo install csvlens

Or, build and install from source after cloning this repo:

cargo install --path $(pwd)

~21–36MB
~575K SLoC