100% Privacy Guaranteed
Unlike Google, AWS, or Azure cloud STT services, your voice data is never sent to any server. Sensitive meetings, medical records, and personal notes stay completely private.
Recording History
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No saved recording history
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Why On-Device STT AI?
Different from cloud-based STT. All processing happens directly in your browser.
Real-time Zero Latency
No network delay - instant speech recognition directly in your browser. Optimized for live captions and real-time meeting notes.
Powered by Whisper AI
Runs OpenAI's Whisper model directly in your browser. State-of-the-art AI technology for high-accuracy speech recognition.
Completely Free
No API fees, no monthly subscription. Unlimited free usage with no registration required.
Who Uses Simple STT?
Short-form Creators
Perfect for YouTube Shorts, Instagram Reels, and TikTok! Generate subtitles for videos up to 60 seconds for free.
Students
Convert lecture recordings to text for study notes. Reduce note-taking burden during class.
Business Professionals
Auto-generate meeting minutes and organize notes. Browser-based processing keeps corporate data secure.
Medical Professionals
Dictate medical records by voice. Processing happens locally in your browser, protecting patient information.
Language Learners
Practice and check your pronunciation. Real-time speech recognition shows your spoken words as text.
Journalists / Interviewers
Quickly transcribe interviews. Local processing ensures your sources remain confidential.
Accessibility Users
Real-time captions for the deaf and hard of hearing. Easy-to-use interface accessible to everyone.
Seniors
Use voice instead of typing. Simple interface makes it easy for anyone to use.
Key Features
Real-time Speech Recognition
Convert speech to text in real-time through your browser's microphone. Supports Chrome, Edge, and Safari browsers with no software installation required.
File Conversion Support
Upload video or audio files to convert to text. Powered by Whisper AI model for highly accurate speech recognition.
Complete Privacy
All audio processing happens within your browser. No voice data is sent to any server, ensuring complete privacy protection.
History Storage
Save converted text to history for later review. Stores up to 50 entries locally in your browser.
Free vs Paid STT Comparison
Simple STT is 100% free speech-to-text AI. See how we compare to paid cloud services:
| Service | Price | Privacy | Signup Required |
|---|---|---|---|
| Simple STT | FREE | Device Processing | No |
| Google Cloud STT | $0.006 / 15 sec | Cloud Processing | Yes |
| AWS Transcribe | $0.024 / min | Cloud Processing | Yes |
| Azure Speech | $1.00 / hour | Cloud Processing | Yes |
How to Use
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Real-time Recording
Allow microphone access and click 'Start Recording'. Text will be converted in real-time as you speak, with a maximum duration of 60 seconds.
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File Upload
Select a video or audio file from the 'File Upload' tab. On first use, the AI model (~75MB) will be downloaded and cached for faster future use.
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Save Results
Copy converted text to clipboard with the 'Copy' button, or save to history with the 'Save' button. View saved content anytime in 'History'.
Frequently Asked Questions
Which browsers are supported?
Works on modern browsers that support Web Speech API, including Chrome, Edge, and Safari. Firefox currently doesn't support Web Speech API and cannot use real-time recording.
Is there a cost?
Simple STT is completely free. No registration or payment required - anyone can use it freely.
Is my data private?
Yes, all audio processing happens within your browser only. Voice data and converted text are never sent to external servers, ensuring complete privacy.
What is the maximum recording time?
Both real-time recording and file upload support up to 60 seconds (1 minute). For longer audio, please convert in multiple segments.
What file formats are supported?
Supports most video formats including MP4, WebM, MOV, and audio formats like MP3, WAV, M4A. Any media file playable in browsers can be converted.
Can I use this for YouTube Shorts or Reels subtitles?
Yes, it's optimized for short-form content up to 60 seconds. Upload your YouTube Shorts, Instagram Reels, or TikTok videos to extract subtitle text.
How do I transcribe lecture recordings?
Use real-time recording during lectures or upload recorded files for conversion. Maximum 60 seconds per segment, so split longer lectures accordingly.
Is this suitable for meeting notes?
Yes, upload meeting recordings for text conversion. All processing happens in your browser, so corporate information never leaves your device.
Is my medical data safe here?
All audio processing happens locally in your browser with no server transmission. This makes it suitable for protecting patient information.
Can I use this for pronunciation practice?
Real-time speech recognition shows your spoken words as text, letting you check how your pronunciation is being recognized. Great for language learning.
What is On-Device STT?
On-Device STT is technology where speech recognition happens directly on your device (browser) instead of on a server. Unlike cloud STT, your voice data never leaves your device, ensuring complete privacy.
How does Real-time STT work?
It analyzes voice input from your microphone in real-time and converts it to text instantly. Processing happens directly in your browser without network delay, providing near-instantaneous results.
What STT AI model is used?
We use OpenAI's Whisper AI model. Whisper is a cutting-edge AI model known for high accuracy across multiple languages and accents, running directly in your browser.
How does this compare to cloud STT services?
Cloud STT services (Google, AWS, Azure, etc.) require sending voice data to servers. On-Device STT processes everything locally, guaranteeing privacy. Plus, it's completely free with no API costs.
Is this really free speech-to-text AI?
Yes! Simple STT is 100% free speech-to-text AI with no hidden costs or subscriptions. Unlike paid services like Google Cloud STT ($0.006 per 15 seconds) or AWS Transcribe ($0.024 per minute), our device STT is completely free forever - no signup required.
What makes Device STT different from regular STT?
Device STT (also called on-device or local STT) processes speech recognition entirely on your device without sending data to external servers. This means faster response times, complete privacy, and no internet dependency after the initial model download.
How accurate is real-time STT transcription?
Our real-time STT achieves high accuracy using OpenAI's Whisper model. Accuracy depends on audio quality and background noise, but typically achieves 90%+ accuracy for clear speech. The AI model supports multiple languages and accents.