Tolgee

Tolgee is an open-source localization platform that allows developers and translators to manage application strings and translations through a centralized web interface or via direct integration into the software codebase.

The software is deployed as a server and integrates into applications using dedicated SDKs or a command line interface. It supports a wide range of frontend frameworks including React, Vue, Svelte, and Angular, enabling teams to manage internationalization workflows without the need to manually edit and upload JSON or PO files. This setup allows for a more dynamic approach to localization where strings are managed in real time.

Key features

• In-context editing of strings directly within the application
• One-click screenshot capture of phrases for translation context
• Machine translation support for DeepL, Google Translate, and AWS Translate
• Translation memory that suggests previously used phrases
• Automatic translation of new keys upon creation
• Activity logs to track modifications, reviews, and comments
• Translation history for tracking changes to specific keys
• MCP server for AI coding assistant integration

Tolgee provides an embedded experience by using SDKs rather than relying on simple data synchronization between a local file and a backend. It includes a Chrome plugin that allows non-technical contributors to translate strings in production environments using an API key, removing the requirement for coding skills to update text. The platform also facilitates collaborative workflows through a commenting system and detailed audit logs that track who modified or reviewed specific phrases.

For developers, the inclusion of an MCP server allows AI coding assistants to search keys, update translations, and manage languages directly from the code editor. This architecture reduces the friction between the development environment and the localization process, ensuring that translation keys remain synchronized with the latest code changes.

It is a developer-centric localization tool for teams requiring self-hosted infrastructure and integrated in-app translation capabilities.