The best open source alternative to Lokalise is Weblate. If that doesn't suit you, our users have ranked more than 25 alternatives to Lokalise and four of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Lokalise are Zanata, Mozilla Pontoon and Intlayer.
Weblate is a web based translation tool with tight VCS integration. It features simple and clean user interface, propagation of translations across components, consistency checks and automatic linking to source files.
Zanata is a web-based system for translators, content creators and developers to manage localisation projects.
Pontoon is a translation management system used and developed by the Mozilla localization community. It specializes in open source localization that is driven by the community and uses version-control systems for storing translations.
Per-component Internationalisation solution for JS application focusing on scalability. Type-Safe. Translate with AI. Edit Visually.
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