• hermitdave/FrequencyWords — English word frequency data. MIT License.
• kuromoji — Japanese tokenization and readings. Apache License 2.0.
• pinyin-pro and segmentit — Chinese segmentation and pinyin. MIT License.
• es-hangul — Korean romanization. MIT License.
• Next.js and React — Application framework. MIT License.
• supabase-js — Database and auth client. MIT License.
• Zod — Schema validation. MIT License.
• openai — Model API client. Apache License 2.0.
• Inngest — Background jobs. Apache License 2.0.
• Azure Speech SDK — Speech client, for the word timings only its socket returns. MIT License.
• Vercel Analytics — Page-view counts. MIT License.

License texts: MIT · Apache 2.0. Copyright notices are in each project’s repository. The complete dependency list is in third-party-notices.txt.