Tyndale

Tyndale is low-key the move for anyone shipping React, Next.js, or Astro apps who's tired of hemorrhaging tokens on translation services when you already pay for AI access anyway. The content-hashed delta approach is clever — only changed strings get retranslated, which means your static UI basically runs for free on token costs. It's free and open source, which is always nice, and it hooks into whatever AI subscription you're already forking over for, so there's no vendor lock-in to stress about. The real test will be whether the translations are actually good, but the economics here are solid enough that it's worth a try if localization has been eating your budget.