Whisper Web is an in-browser speech-to-text tool powered by AI that transcribes audio privately on your device with no uploads required.
What is Whisper Web?
Whisper Web is a browser-based speech recognition tool that uses the Whisper model, optimized for web via Transformers.js, to convert audio input (from files, URLs, or microphone) into text transcripts. It runs entirely on-device using WebAssembly and WebGPU, supporting over 99 languages with automatic language detection. The tool is built with the 🤗 Transformers.js library (https://github.com/xenova/transformers.js) and requires no server uploads, account creation, or installation.
Key Features
- 100% Private & Secure — All processing happens in your browser; audio never leaves your device, ensuring complete data privacy.
- Multilingual Support — Transcribes 99+ languages with automatic language detection; no manual selection needed.
- Multiple Input Formats — Accepts audio files (MP3, WAV, M4A, FLAC), video files (MP4, WebM, MOV), and direct microphone recording.
- High Accuracy — Achieves over 98% transcription accuracy for clear audio, comparable to server-based solutions.
- Zero Installation — Works instantly in any modern browser (Chrome 84+, Firefox 79+, Safari 14+, Edge 84+) with no downloads or setup.
- Lightning Fast — Accelerated by WebAssembly and WebGPU; processes hours of audio in minutes on capable hardware.
- Free & Unlimited — Completely free with no hidden costs, subscriptions, or API fees; only limited by your device's processing power and memory.
Who is it for?
- Business professionals — Generate accurate meeting minutes and action items automatically from recorded or live meetings.
- Educators and students — Convert lectures, study materials, and seminars into searchable text for note-taking and review.
- Content creators — Transform podcasts, videos, and interviews into blog posts, articles, or subtitles without manual transcription.
- Researchers and journalists — Capture every detail from interviews and research sessions with on-device privacy.
What can you do with Whisper Web?
- Business Meetings — Upload meeting recordings or record live to produce transcripts that can be shared or searched.
- Education & Learning — Transcribe lectures from audio or video files to create study notes or captions.
- Content Creation — Convert podcast episodes or video narrations into text for repurposing as blog posts or social media content.
- Interviews & Research — Process interview recordings to generate verbatim transcripts for analysis and citation.
FAQ
Is my audio data really private and secure?
Yes. Whisper Web processes everything locally in your browser using WebAssembly. Your audio files never leave your device, are never uploaded, and are never stored anywhere. Even the developers cannot access your data.
How accurate is the transcription?
Whisper Web achieves over 98% accuracy for clear audio in supported languages. Accuracy depends on audio quality, speaker clarity, background noise, and language — for best results use clear recordings with minimal noise.
What file formats and system requirements are supported?
You can upload audio (MP3, WAV, M4A, FLAC) and video (MP4, WebM, MOV) files, or record from your microphone. A modern browser with WebAssembly support (Chrome 84+, Firefox 79+, Safari 14+, Edge 84+) is required; 4GB+ RAM recommended for optimal performance.
Is Whisper Web really free?
Yes, Whisper Web is completely free with no hidden costs, subscriptions, or API fees. Since everything runs in your browser, there are no server costs. The only limits are your device's processing power and available memory.
