niedev/RTranslator

Health v2 · maintenance only

Adoption not part of the score

10355 stars · 938 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

RTranslator is a free, open-source, offline real-time translation app for Android that runs speech recognition (Whisper) and translation (Meta's NLLB) models locally on the phone. It supports multi-person conversation mode over Bluetooth LE, a walkie-talkie mode for quick two-person exchanges, and classic text translation.

Use cases

• have a real-time translated conversation with someone who speaks another language
• translate speech offline without internet or subscription fees
• use bluetooth headphones for hands-free interpreted conversations
• quickly ask for directions in a foreign language with one phone
• translate text between languages on Android
• run whisper speech recognition and NLLB translation locally on a phone

When to choose

• you need private, fully offline translation on an Android device
• you want multi-person conversation translation with Bluetooth headsets
• you want a free alternative to paid translation apps without API costs

When to avoid

• you need translation on iOS or desktop platforms
• you need server-grade translation quality or very large language coverage
• your device lacks the resources to run local ML models

Facets

application · maturity active

speech-recognition tts machine-learning llm-inference mobile-development android-tools real-time-translation offline-translation bluetooth-le onnxruntime whisper nllb conversation-mode walkie-talkie natural-language-processing localization android mobile

Member repositories

For agents

markdown · JSON · MCP: product_card(name="niedev/RTranslator")