Crowdin is a localisation platform used by 5 million+ users including Microsoft, Twitter and Autodesk to translate software, mobile apps, games and content into multiple languages. Its key strength is continuous localisation — integrating directly with GitHub, GitLab and Bitbucket so that new translatable strings are automatically synced for translation as developers push code, without manual file management.
Crowdin's AI features include pre-translation that uses machine translation engines (DeepL, Google, Microsoft) to automatically translate new content before human review, translation memory that reuses previously approved translations, and AI-powered quality assurance that catches errors and inconsistencies. This hybrid approach — AI first, human refinement — typically achieves professional quality at a fraction of the cost of pure human translation.
For open-source projects and games, Crowdin's crowdsourcing feature enables community members to contribute translations — particularly popular with game studios that leverage passionate fan communities to localise into dozens of languages. The platform's voting system lets the community validate translations for quality, reducing reliance on expensive professional translators for lower-stakes content.