Free Subtitle Converter

Převést mezi SRT, VTT, SSA/ASS, SBV, TXT, a JSON titulky formáty okamžitě. 100% klient-strana - vaše soubory nikdy opustit prohlížeč.

Spusťte soubor s titulky zde nebo klikněte na prohlížení

SRT, VTT, ASS, SSA, SBV, TXT, JSON

CuesCity in California USA
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Převedený výstup

          

O formátech titulků

SRT (Subrip)

Nejrozšířenější formát titulků. Kompatibilní s prakticky všemi mediálními přehrávači a video platformami. Používá čárky oddělené milisekundy (HH:MM:SS,mmm).

VTT (WebVTT)

Web Video Text Tracks formát. Designed for HTML5 video and supported by all modern browsers. Uses dot-samostatné milisekundy (HH:MM:SS.mm).

ASS / SSA (SubStation Alpha)

Podporuje bohaté styling, polohování, karaoke efekty a pokročilou typografii. Populární v anime fanoušci a komplexní subtitle inscenations.

SBV (YouTube SubViewer)

Formát SubViewer používaný nativním způsobem YouTube. Jednoduchý formát timerampu ideální pro nahrávání video platformy a základní popiskování.

Jak převést titulky

1
Nahrát nebo vložit

Spusťte soubor s titulky nebo vložte jeho obsah přímo do editoru.

2
Vybrat výstupní formát

Vstupní formát je automaticky detekován. Vyberte požadovaný výstupní formát z dropdownu.

3
Převést & stahování

Klikněte na Převést pro zobrazení náhledu, pak stáhnout soubor nebo kopírovat do schránky.

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Často kladené otázky

subtitle conversion runs in your browser: paste a URL, upload a file, or record from your mic. STT.ai picks the AI model and returns the transcript in under 5 minutes. Export as TXT, SRT, VTT, DOCX, JSON, or PDF.

Yes — every visitor gets 600 free minutes/month on STT.ai, usable for subtitle conversion the same as any other workflow. Paid plans starting at $5/month unlock longer files, private transcripts, and priority queueing.

subtitle conversion runs on the same AI models as the rest of STT.ai — our best models reach 95-97% accuracy on clean speech (3-5% Word Error Rate on benchmarks). Switch models on the fly if the first pass is below your target.

subtitle conversion can run on any of STT.ai's 10+ models — STT.ai Enhanced (most accurate), Whisper Large V3 (99 languages), NVIDIA Canary (#1 WER on supported langs), Whisper Turbo (fast), Moonshine (lightweight), and more.

Yes. Every transcript exports as SRT or VTT — works with YouTube, Vimeo, TikTok, VLC, and every major video player. The burn-subtitles tool overlays them onto video as hardsubs.

Yes. Speaker diarization automatically labels each voice (Speaker 1, Speaker 2, ...) and you can rename them in the built-in editor. Works across all models and languages.

Most subtitle conversion jobs finish in under 5 minutes. A 1-hour audio file typically completes in 2-3 minutes with our fastest models. Speed depends on chosen model and current GPU load.

subtitle conversion accepts 20+ formats — MP3, WAV, M4A, FLAC, OGG, MP4, MKV, MOV, WebM, AVI, and more. Output to TXT, SRT, VTT, DOCX, JSON, or PDF.

Yes. Audio files submitted to subtitle conversion are processed and deleted by default. Pro plans add client-side encryption — even if STT.ai's database is breached, your transcripts are unreadable without your key. Data is never used for model training without explicit opt-in.

Yes. STT.ai offers a REST API with Python and Node.js SDKs, plus an MCP server for Claude and Cursor — all usable for subtitle conversion workflows. Free API tier includes 100 minutes/month.

Yes. Every transcript opens in the built-in editor where you can correct words, rename speakers, adjust timestamps, and add notes. All changes save automatically.

Every transcript gets a unique shareable URL. Export to DOCX or PDF for email. Pro plans add password-protected and permanent links — useful for client work.

STT.ai handles 1,300+ platforms including YouTube, Vimeo, TikTok, SoundCloud, Zoom, Google Meet, podcast hosts, and more. URL transcription works with publicly-available content only — DRM-protected sources can't be transcribed.