Show HN: Free YouTube Transcript Generator – 99% Accuracy, No Signup Required (harku.io)

Show HN is showcasing a free AI-powered YouTube transcript generator that converts any YouTube URL into text with timestamps in seconds, claiming up to 99% accuracy. Users paste a video URL and get a transcript in ~30–60 seconds, downloadable as TXT, SRT, VTT, DOCX, PDF, Markdown or JSON. The tool auto-detects over 60 languages, produces subtitle-ready files for editors and players, and offers a no-signup tier (videos up to 5 minutes) plus a free account with 30 minutes/month; paid plans add higher volume, speaker ID, and an enhanced accuracy mode. The service emphasizes privacy — enterprise-grade processing, no permanent storage and automatic deletion after transcription. For the AI/ML community this is notable because it packages modern speech-recognition models (trained on millions of hours of audio) into a fast, accessible web utility that lowers the barrier to content accessibility, research, and reuse. Technical implications include broad language support, multi-format export for downstream workflows, and sub-minute latency that enables near real-time workflows. Caveats remain: accuracy depends on audio clarity, overlapping speakers, heavy accents or jargon, and the 99% figure should be validated on diverse datasets. Still, the combo of speed, format flexibility, and a generous free tier makes it a practical tool for creators, researchers, and tooling integrations.