Launchpad is a web application and website that allows users to develop and maintain software, particularly open-source software.

Transifex is a proprietary, web-based translation platform.

Crowdin is a localization project management platform and translation tool for developers and website owners.

Translation.io is a translation service, especially for Ruby.

OneSky provides a powerful cloud-based translation management system (TMS) that streamlines the entire translation management process for mobile apps.

POEditor is an online localization management tool, perfect for collaborative or crowdsourced translation projects.

Pootle is an online translation management tool with translation interface. It is written in the Python programming language using the Django framework and is…