AI Audio Transcriber (Convert Speech to Text & Timed Subtitles)
Convert spoken voice recordings, interviews, voice memos, and lectures into clean, editable text and timed SubRip (.srt) subtitles directly in your browser.
Powered by the Whisper neural speech recognition model running entirely on your device via WebAssembly and WebGPU. Your audio files are processed locally and are never transmitted to an external transcription server.
100% Client-Side Processing & Privacy Guarantee
All processing takes place strictly inside your client browser using WebAssembly, Canvas, and Web Workers. Your files, documents, and data never leave your device and are never sent to external servers.
Technical Specifications & Browser Capabilities
Local runtime details and instant zero-server processing environment
Step-by-Step Instructions
1. Select an Audio File
Upload an MP3, WAV, M4A, OGG, WebM, FLAC, or AAC voice recording (up to 15MB and 3 minutes).
2. Choose Language
Select the spoken language (English, Spanish, Arabic, French, German) or choose Auto-detect.
3. Click Transcribe Audio
Click Transcribe to launch the in-browser neural speech engine and process your audio locally.
4. Edit & Export
Review and edit the generated transcript, copy the text to your clipboard, or download TXT and timed SRT files.
Core Advantages & Features
In-Browser Speech AI
Audio decoding and neural inference execute locally in your web browser. Your recordings remain private on your device.
Timed SRT Subtitle Generation
Extracts authentic chunk timestamps from the speech model to produce standard SubRip subtitle files for video editors.
Dedicated Web Worker Isolation
Runs heavy neural processing off the main browser thread, keeping your interface smooth and responsive.
Multilingual Speech Recognition
Optimized recognition for English, Spanish, Arabic, French, and German audio tracks.
Editable Transcript Workspace
Review and edit the transcription directly with live character and word counters before exporting.
No Account or API Key Required
Free to use directly in your browser without sign-up, subscriptions, or third-party cloud fees.
Frequently Asked Questions
How does the in-browser AI audio transcription work?
Are my audio recordings uploaded to any cloud server?
Why is there a file duration limit of 3 minutes?
How are the SRT subtitle timestamps generated?
Should I review the transcript before publishing?
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