i18n-lint
Lint HTML and template source files for hardcoded (untranslated) strings
eslint-plugin-default
ESLint plugin that enforces proper defaults by disallowing hardcoded values in the codebase
find-hardcoded-colors
CLI tool that detects hardcoded colors in codebases. Finds hex, RGB/RGBA, HSL/HSLA, named colors and embedded colors in strings with customizable output formats and exclusions.