Convert to snake_case

Overview

What Convert to snake_case does

Splits mixed identifiers into lowercase words and joins them with underscores for common code and data naming conventions.

Example

Action and outcome

Workflow

Use Convert to snake_case

Follow these steps to convert selected words or identifiers to snake_case with ActionClip.

1. Select the text you want to use.
2. Choose Convert to snake_case from ActionClip.
3. Review the result, then replace the selection or copy the new text.

Before you add it

Requirements and privacy

• Before you start: No setup required.
• Your selected text: Runs locally in ActionClip’s JavaScript sandbox. Selected text does not leave your Mac.

Inspect before installing

Action configuration

The definition below is included so you can inspect how the action works before downloading it.

function run(selected_text) {
  const words = selected_text
    .normalize("NFKD")
    .replace(/\p{M}+/gu, "")
    .replace(/([A-Z\d]+)([A-Z][a-z])/g, "$1 $2")
    .replace(/([a-z\d])([A-Z])/g, "$1 $2")
    .replace(/[^\p{L}\p{N}]+/gu, " ")
    .trim()
    .split(/\s+/)
    .filter(Boolean)
    .map((word) => word.toLowerCase());

  if (!words.length) return "";
  const capitalize = (word) => word.charAt(0).toUpperCase() + word.slice(1);
  return words.join("_");
}