Voxscribe - Offline Voice Input

Voxscribe is an offline voice-input keyboard (input method) for Android. Hold the mic button to record; your speech is transcribed entirely on-device with whisper.cpp using a Whisper model file you supply yourself, and the result is written into the focused text field.

Voxscribe is free software. It is published under the MIT open-source license. Voxscribe uses whisper.cpp for on-device transcription, which is also free software published under the MIT license.

SETUP

Voxscribe does not ship a speech model. You download one yourself and point the app at it.

Download a Whisper model file in GGML format from the Hugging Face repository ggerganov/whisper.cpp: https://huggingface.co/ggerganov/whisper.cpp/tree/main

Recommended files:

ggml-base-q5_1.bin (~60 MB), the recommended default

ggml-small-q5_1.bin (~190 MB), better quality but slower

ggml-tiny-q5_1.bin (~32 MB), for older or weak devices

Use a multilingual model only. The .en (English-only) variants break both language modes.

Open Voxscribe, tap "Model file", and pick the file you downloaded.

Under "Setup", tap "Enable Voxscribe keyboard" and turn Voxscribe on in the system keyboard settings.

Under "Setup", tap "Microphone permission" and allow recording. You can also grant it the first time you hold the mic button.

In any text field, switch to Voxscribe with the keyboard's mic button or the system input-method switcher, then hold the mic button to record and release to insert the transcript.

FEATURES

Offline, on-device transcription, so nothing leaves your phone

Push-to-talk: hold to record, release to transcribe

Two favourite languages to switch between on the panel, or automatic language detection

Light and dark themes, plus Material You dynamic colors

A WORD ON PRIVACY

Voxscribe works entirely on your device. Your speech is recorded while you hold the mic button, transcribed locally by whisper.cpp. There is no web service behind Voxscribe. The Whisper model stays wherever you saved it. The only permission Voxscribe requests is microphone access, needed to record your voice. Voxscribe does not hold the INTERNET permission. It cannot transmit data.