AudioSRT

AudioSRT works best on desktop. Please open on a laptop or desktop computer.

Processed locally on your device
🔒Audio never uploaded to any server
No file size or length limits

Drop your audio or video file

MP3, WAV, M4A, MP4, MOV, WebM — any file size

🔒 Your file never leaves your device

Select transcription quality

Transcribe 15–20× faster with the free desktop app — GPU-accelerated, works offline, no file size limits. Download →
Everything is free — no account required. Upload audio or video, transcribe, edit, and export.

AudioSRT is a browser-native audio transcription and subtitle generation platform powered by OpenAI Whisper AI models executed via asynchronous Web Workers and WebGPU memory-chunking pipelines. Unlike server-dependent transcription APIs, all media processing occurs entirely on the client device — eliminating upload latency, enforcing zero-knowledge privacy guarantees, and enabling unlimited file duration processing without queue throttling. The platform generates frame-accurate, millisecond-precision SRT subtitle files, plain-text transcripts, VTT caption files, and native Adobe Premiere Pro JSON session files compatible with Premiere's Text-Based Editing workflow. Exported subtitle sequences are fully compatible with Adobe Premiere Pro, DaVinci Resolve, Final Cut Pro X, CapCut, and all SMPTE-compliant NLE systems. The Web Worker architecture completely separates the Whisper inference thread from the browser's primary UI rendering thread, guaranteeing zero UI freezes or tab crashes during multi-hour media file processing.