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Transcribe Audio in 100+ Languages

AI-powered speech to text. Upload any file or record live. Auto-detect language.

公開されているオーディオとビデオで動作します。DRM 保護されたコンテンツはサポートされていません。

アップグレード
Private transcript
転写付きチャット
プロでロック解除 →
ファイルをここにドラッグまたはクリックしてブラウズ
MP3, WAV, M4A, FLAC, MP4, MKV, MOV, WebM — 最大2GB
複数のファイルを一括アップロード プロと一緒に
アップグレード
Private transcript
転写付きチャット
プロでロック解除 →
アップグレード
録音: 0:00
リアルタイム ワックス (瞬間)
強化 囁き (正確)
公開リンク：24時間、テキストのみ · 登録 7d+オーディオのための · プロ 私的なリンクを

リアルタイムの音声からテキストに変換。AI は話すときに自動的に訂正します。長い話をすると正確さが向上します。

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無料で登録して月間600分を利用したり、無制限の転写を利用するためにアップグレードしてください。

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100+
Languages Supported
10+
AI Models
95%+
Accuracy
Free
600 min/month

How It Works

1
Choose Your Language

Select the language of your audio from our catalog of 100+ supported languages below.

2
Upload Your File

Upload audio or video in any format -- MP3, WAV, M4A, MP4, MKV, and 20+ more formats supported.

3
Get Your Transcript

Download your transcript as TXT, SRT, VTT, DOCX, JSON, or PDF. Edit, share, or integrate via API.

All Languages

Why Choose STT.ai for Multilingual Transcription?

Industry-Leading Accuracy

Our AI models achieve 93-95%+ accuracy across major languages. We support multiple models so you can pick the best one for your language and use case.

Every Format Supported

Upload audio or video in any format. Export transcripts as TXT, SRT subtitles, VTT captions, DOCX documents, JSON data, or PDF files.

Speaker Detection

Automatic speaker diarization identifies who said what. Works across all supported languages for meetings, interviews, podcasts, and more.

Privacy First

Your audio is processed and deleted by default. Zero data retention on paid plans. Enterprise plans include and deployment.

Ready to Transcribe?

Start free with 600 minutes per month. No credit card required.

Start Transcribing

よくある質問

multilingual transcription 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 multilingual transcription the same as any other workflow. Paid plans starting at $5/month unlock longer files, private transcripts, and priority queueing.

multilingual transcription 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.

multilingual transcription 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 multilingual transcription 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.

multilingual transcription 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 multilingual transcription 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 multilingual transcription 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.