Local Audio Convert
Convert audio & video files locally in your browser. Batch up to 100 files. 100% Privacy. No uploads.
Supported formats: MP3, WAV, OGG, AAC, M4A, FLAC, MP4, MOV
m4a to mp3, ogg to wav, batch audio converter
100% Privacy
- Files never leave your device. All processing happens in your browser.
Lightning Fast
- Powered by WebAssembly for near-native performance.
All Formats
- Supports MP3, WAV, OGG, AAC, M4A, FLAC and Video extraction.
Free & Secure
- No daily limits. No sign-up required. Completely free.
Frequently Asked Questions
How to convert audio files?
Select your file, choose the target format, and click "Convert". The process happens instantly in your browser.
Is my file uploaded?
No. Your files are processed locally using WebAssembly technology. They never leave your device, ensuring 100% privacy.
What formats are supported?
We support MP3, WAV, OGG, M4A, AAC, FLAC, and many more.
How it works
Local Audio Convert uses FFmpeg.wasm technology to run conversion logic directly in your browser. This means no server uploads, faster processing, and unlimited file size (dependent on your device memory).
The Ultimate Secure Audio Converter
In the digital age, audio conversion is a frequent necessity, whether for compatibility with specific devices, reducing file size for storage, or preparing audio for professional editing. However, most online converters require you to upload your files to a remote server. This process not only consumes bandwidth and time but also raises significant privacy concerns. What happens to your personal voice memos, confidential meeting recordings, or unreleased music tracks once they leave your device?
Local Audio Convert solves this problem by bringing the power of FFmpeg directly to your browser. By leveraging WebAssembly (Wasm) technology, we have created a conversion engine that runs entirely on your local machine. When you select a file, it is processed by your computer's CPU, just like a desktop application. This means your data never leaves your device—not even for a second.
Our tool supports a wide array of popular audio formats including MP3, WAV, OGG, AAC, M4A, and FLAC. Whether you need to convert a high-quality WAV recording to a portable MP3 format, or extract audio from a video file, Local Audio Convert handles it with ease. We also provide advanced settings allowing you to customize bitrates, sample rates, and channel configurations to suit your specific needs.