Free Speech to Text Online
Convert speech to text with AI-powered transcription. Upload audio files, record from your microphone, or paste a URL. 100+ languages, 10+ models, 98%+ accuracy.
1. Upload Speech Recording
Upload an audio or video file, paste a URL, or record speech from your mic.
2. AI Converts Speech to Text
Choose from 10+ AI models. Speaker detection and language auto-detect included.
3. Export Your Transcript
Download in 6 formats. Share transcript links with audio playback.
Speech to Text Models
Choose the AI model that fits your needs — or let us pick the best one.
Speech to Text in 100+ Languages
Ready to convert speech to text?
Start Free →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.
STT.ai සහාය 1,300+ වේදිකා යුටියුබ්, Vimeo, TikTok, SoundCloud, සහ තවත්. URL පරිවර්තනය පොදු ලබා ගත හැකි ශ්රව්ය සහ වීඩියෝ සමග පමණක් වැඩ. DRM-ආරක්ෂිත අන්තර්ගතය (එවැනි Spotify ප් රතිලාභ කතා, Netflix, Disney + ආදිය) පරිවර්තනය කළ නොහැකි. DRM අන්තර්ගතය සඳහා, ගොනුව වෙන් වෙන් වශයෙන් බාගත කර සෘජුවම එය උඩුගත කරන්න.