---

name: classname-search description: A CLI tool that searches inside class and className attributes and matches against each class name individually. Use this instead of grep when searching or replacing class names.

Class Name Search Guide

Windows CLI Setup

1. Run echo --%
2. If output is empty (PowerShell): Add --% before arguments (e.g., --% '^flex$')
3. If not PowerShell: Run npx -y node -e "console.log(process.argv[1])" "^test". If output is test instead of ^test, escape ^ as ^^ (e.g., ^flex$ → ^^flex$)

See CLI Reference for details.

Count matched class names per file

[!WARNING]
AI manual counting is unreliable. Always use this command to count class names.

Command:

Copynpx classname-search stats 'src/**/*.jsx' 'text-'

Output:

Copysrc/components/Header.jsx: 3 matches
src/components/Main.jsx: 4 matches

Total: 7 matches in 2 files

[!NOTE]
By default, only files containing matched class names are listed.
Use the --verbose option if you want to include files with 0 matches in the output.

Search for class names

Command:

Copynpx classname-search search 'src/components/**/*.jsx' 'flex'

Output (search):

Copy{"file":"src/components/Header.jsx","line":3,"matched":"flex","className":"flex","classValue":"flex flex-col"}
{"file":"src/components/Header.jsx","line":3,"matched":"flex","className":"flex-col","classValue":"flex flex-col"}
{"file":"src/components/Header.jsx","line":4,"matched":"flex","className":"inline-flex","classValue":"inline-flex"}

[!IMPORTANT]
matched is the regex match; className is the full class name containing that match.

File output:

Redirect output to a file for large results or when requested by the user.
Working from file output is strongly recommended to avoid truncation and hallucination.

Copynpx classname-search search 'src/components/**/*.jsx' 'flex' > 'filename.jsonl'

Search and replace class names

Command:

Copynpx classname-search replace 'src/components/**/*.jsx' -- '-slate-(\d+)$' '-neutral-$1'

Output:

CopyReplaced 8 matches of "-slate-(\d+)$" with "-neutral-$1" in 3 files.

Remove class names

Command:

Copynpx classname-search remove 'src/components/**/*.jsx' '^font-normal$'

Output:

CopyRemoved 5 matches of "^font-normal$" with "" in 2 files.

CLI Reference

Fetch https://raw.githubusercontent.com/yuichiroharai/classname-search/main/README.md