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Free Web app + API · Yiddish · Hebrew · English

Free. Yiddish-first.

Turn recordings into text and text into natural speech, built for Yiddish from the ground up. Use it on the web or call the API, both free.

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shul-announcement.m4a · 0:42 · Yiddish (auto) Done in 3.1s
00:00שלום עליכם, דאס איז א מעלדונג פון די שול.
00:04מנחה וועט היינט זיין פינף מינוט פאר שקיעה.
00:09נאך מעריב איז דא א שיעור אין גמרא בבא מציעא.
00:14דער שיעור הייבט זיך אן אכט אזייגער פונקט.
1 correction savedבבא מציעאTXT · SRT · VTT · JSON · DOCX

Two models, one quiet workspace

Everything you make is saved to your private library, so you can come back, fix a word, and download it again.

Speech to text

Devniks ASR: the Yiddish speech model behind Sixday's phone search.

  • Upload or record from your mic
  • Timestamps for every segment
  • Edit right in the transcript
  • TXT, SRT, VTT, JSON, DOCX

Text to speech

Devniks TTS: a Yiddish fine-tune of OmniVoice.

  • Natural male and neutral voices
  • Clone your own voice from a short clip
  • Speed and pitch control
  • MP3 or WAV

Free API

The same models over plain REST.

  • One API key, one header
  • POST /v1/asr and POST /v1/tts
  • Send corrections back for credits
  • Clear docs with curl, Python, JS

Why is it free?

Honestly: your recordings and corrections help us make the models better. When you fix a word the model got wrong, that fix teaches the next version. That's the trade, and we want it to be a fair one.

Correct a transcript or rate a voice and you earn extra free minutes.

How credits work
Private by default. Your audio and text are visible only to you. Share links are off until you turn one on.
Used only to improve Devniks models. Never sold, never published, never handed to advertisers.
Voice is a separate choice. Using your voice recordings for voice training needs its own opt-in.
Yours to delete. Download or delete all your data from Settings at any time.

Build on it, free

Add Yiddish transcription to your phone line, app or archive. The free tier covers 120 audio minutes and 50,000 characters of speech a day per key.

# Transcribe a recording
curl https://voice.devniks.com/v1/asr \
  -H "Authorization: Bearer $DEVNIKS_KEY" \
  -F file=@shiur.mp3 -F language=yi

# → 200 OK
{ "id": "asr_8f3k2", "status": "done",
  "segments": [{ "start": 0.0, "end": 4.2,
    "text": "שלום עליכם, דאס איז..." }] }