analyzelocale
This scans your laravel project for used locale keys that aren't translated by your locale files.
eloquent-localizable
by folklore
Laravel 4 and 5 package to add localization capabilities to Eloquent Models
language-detector
by vluzrmos
Detect the language for your application using browser preferences, subdomains or route prefixes.
laravel-multilang
by longman
Package to integrate multi language (multi locale) functionality in Laravel 5.x
laravel-translator
Laravel's package for managing multiple locales and translation
translatable
by brackets
Make your Eloquent models and other content translated into multiple languages