OmegaT - OmegaT is a free open-source translation memory application for professional translators written in Java.

Smartling - Website localization & translation

Smartcat - Smartcat

Phrase - A platform offering AI-powered translation tools for localization at scale.

Lokalise - Localization tool for software developers. Web-based collaborative multi-platform editor, API/CLI, numerous plugins, iOS and Android SDK.

Transifex - Transifex makes it easy to collect, translate and deliver digital content, web and mobile apps in multiple languages. Localization for agile teams.