How accurate is the transcription?

Accuracy depends on the AI model you choose and audio quality. Our best models achieve 93-95%+ accuracy. Clear audio with minimal background noise produces the best results.

Free AI Speech to Text

Transcribe audio & video to text in 100+ languages. 10+ AI models. Speaker detection. No signup required.

transcriptions

minutes transcribed

100+

languages

70+

free tools

Private transcript Pro

May take a few minutes for longer files

Drop file here or click to browse

MP3, WAV, M4A, FLAC, MP4, MKV, MOV, WebM — up to 2GB

Private transcript Pro

Real-time speech to text. AI auto-corrects as you speak — accuracy improves with longer speech.

Test your microphone first

10 free min/day 600 min free with signup No credit card Encrypted

Speech to Text Audio to Text Video to Text Live Transcription Dictation Subtitles Meetings All Tools →

Speaker Detection

Auto-identify who said what

100+ Languages

Auto-detect or select manually

Choose Your Model

Whisper, Canary, Parakeet & more

Export Anything

TXT, SRT, VTT, DOCX, JSON, PDF

Private Transcript — Your transcripts are encrypted in your browser. Even we can't read them. Learn how it works →

Trusted by professionals worldwide

Podcasters Journalists Researchers Students Legal Teams Medical Pros

Speech to Text Models

Choose the best engine for your audio

View all models →

How STT.ai Works

Three steps to accurate transcription

1. Upload, Record, or Paste URL

Drag and drop any audio or video file (MP3, WAV, MP4, and 20+ formats). Record from your microphone in real-time. Or paste a link from YouTube, Vimeo, TikTok, and 1,300+ platforms.

2. AI Transcribes with Your Choice of Model

Choose from 10+ AI models including Whisper, NVIDIA Canary (#1 accuracy), and Moonshine. Auto-detect language from 100+ options. Speaker diarization identifies who said what.

3. Export, Share, or Integrate

Download as TXT, SRT, VTT, DOCX, JSON, or PDF. Share via link. Use our API to integrate transcription into your app. Perfect for subtitles, meeting notes, podcasts, and more.

Popular Use Cases

All use cases →

Meetings

Meeting notes & action items

Podcasts

Transcripts & show notes

Class notes & study guides

Legal

Depositions & court

100+

Languages Supported

70+

Free Tools

1,300+

Platforms Supported

Export Formats

Switching from another speech to text service?

STT.ai vs Otter.ai STT.ai vs TurboScribe STT.ai vs Fireflies STT.ai vs Rev Compare all →

Supported Languages

All 100+ languages →

English Spanish French German Japanese Chinese Arabic Hindi Portuguese Russian Korean Italian Turkish Dutch Polish +85 more

Ready to transcribe?

Upload your first file free. No credit card, no signup. 600 minutes per month on the free plan.

Start Transcribing

Frequently Asked Questions

Upload your audio or video file to STT.ai. Select your preferred AI model and options, then click Transcribe. Your transcript will be ready in minutes. Export as TXT, SRT, VTT, DOCX, JSON, or PDF.

Yes! STT.ai offers 600 free minutes per month for all users. No signup required for your first transcription. Paid plans with more minutes and features start at $5/month.

Accuracy depends on the AI model you choose and audio quality. Our best models achieve a 5-7% Word Error Rate on benchmarks, meaning 93-95%+ accuracy. Clear audio with minimal background noise produces the best results.

STT.ai offers 10+ models including Whisper Large V3, NVIDIA Canary, and more. You can compare results from different models on the same file.

Yes. After transcribing, export your transcript as SRT or VTT subtitle files. These work with YouTube, Vimeo, and all major video platforms.

Yes. STT.ai automatically identifies and labels different speakers using AI speaker diarization. Works across all models and languages.

Most files are transcribed in under 5 minutes. A 1-hour audio file typically takes 2-3 minutes with our fastest models.

STT.ai supports 20+ audio and video formats including MP3, WAV, M4A, FLAC, OGG, MP4, MKV, MOV, WebM, and AVI. Export as TXT, SRT, VTT, DOCX, JSON, or PDF.

Yes. Audio files are processed and deleted after transcription. Your data is never used for training. Private transcript is free on all plans. Learn about our security.

Yes. STT.ai offers a REST API with Python and Node.js SDKs. Free tier includes 100 minutes/month.

Yes. STT.ai includes a built-in transcript editor where you can correct errors, rename speakers, and adjust timestamps.

Every transcript gets a unique shareable link. Export to DOCX or PDF for email. Pro plans offer password-protected and permanent links.

Free AI Speech to Text

Speech to Text Models

How STT.ai Works

1. Upload, Record, or Paste URL

2. AI Transcribes with Your Choice of Model

3. Export, Share, or Integrate

Popular Use Cases

Supported Languages

Ready to transcribe?

Frequently Asked Questions

How do I transcribe audio?

Is transcription free?

How accurate is the transcription?

What AI models can I use?

Can I get subtitles and captions?

Does it detect different speakers?

How long does transcription take?

What file formats are supported?

Is my audio data kept private?

Can I access transcription via API?

Can I edit the transcript after?

How do I share my transcript?