subtitle-generator-free
Captions That Actually Sync — Without the Subscription Tax
Most captioning tools either charge per audio minute or bury the free tier under frustrating limits. subtitle-generator-free flips that model entirely. You bring the video, the skill handles transcription, alignment, and subtitle file generation — all inside a single conversational exchange on ClawHub.
The workflow is built around dialogue, not dashboards. Instead of navigating a multi-step editor, you describe what you need — language preference, caption style, timestamp granularity — and the OpenClaw agent interprets those instructions and coordinates the underlying transcription and alignment pipeline on your behalf. The agent acts as an intelligent intermediary, translating your plain-language requests into precise processing instructions without exposing any technical complexity.
Under the hood, the AI backend performs forced phoneme alignment after transcription, which means captions don't just appear at roughly the right time — they snap to the exact syllable boundary where each word is spoken. This matters most for fast speakers, accented audio, and overlapping dialogue. Whether your source file is a polished mp4 interview, a raw mov screen recording, an avi lecture capture, a webm podcast clip, or an mkv film excerpt, the skill ingests it without conversion steps on your end.
Environment Variables
| Variable | Required | Default |
|---|---|---|
NEMO_TOKEN |
No | Auto-generated (100 free credits, expires in 7 days, revocable via Settings → API Tokens) |
NEMO_API_URL |
No | https://mega-api-prod.nemovideo.ai |
NEMO_WEB_URL |
No | https://nemovideo.com |
NEMO_CLIENT_ID |
No | Auto-generated UUID, persisted to ~/.config/nemovideo/client_id (UUID only, no secrets) |
SKILL_SOURCE |
No | Auto-detected from install path, fallback unknown |