Convert Audio to MP3 Free - All Formats Supported

Name: PrivAudio
Author: PrivAudio

Convert any audio file (M4A, WAV, OGG, FLAC, WMA, AAC) to MP3 in seconds. 100% private in your browser, no file uploads.

Perfect for converting uncommon formats to the universal MP3 standard, ensuring your audio plays on any device, car stereo, or media player without compatibility issues.

All processing happens in your browser

Select a file

Or drag and drop here

100% private

Fast conversion

Supported formats: MP4, WEBM, MOV, M4A, OGG, WAV
Limits: 100 MB, 30 minutes

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How to Convert Any Audio to MP3

Select your audio file

Upload any format: M4A, WAV, OGG, FLAC, WMA, AAC, OPUS

Automatic conversion to MP3

We process audio in your browser, no uploads

Download your MP3

Universal MP3 file compatible with all devices

Why PrivAudio vs Other Converters

Most converters upload your files to their servers—risky for confidential audio, voice notes, or private recordings. Here's how we're different:

File Processing

PrivAudio

100% in your browser

Other Converters

Uploads to their servers

File Storage

PrivAudio

Never stored anywhere

Other Converters

Stored 24h (typical)

Processing Speed

PrivAudio

Fast browser-based conversion

Other Converters

Upload + Queue + Download

Network Upload

PrivAudio

0 bytes of your file uploaded

Other Converters

Uploads entire file

Feature	PrivAudio	Other Converters
File Processing	100% in your browser	Uploads to their servers
File Storage	Never stored anywhere	Stored 24h (typical)
Processing Speed	Fast browser-based conversion	Upload + Queue + Download
Network Upload	0 bytes of your file uploaded	Uploads entire file

See the Difference Yourself

Convert a file and experience fast browser-based conversion with zero uploads

Try Converting Now

Comparison based on publicly available information as of January 2025. Convertio Privacy Policy

Frequently Asked Questions - Convert Audio to MP3

What audio formats can I convert to MP3?

We support all common formats: M4A (WhatsApp, iPhone), WAV (uncompressed), OGG/OPUS (Discord, Telegram), FLAC (high quality), WMA (Windows), AAC, and more. If it's audio, we can probably convert it.

Why convert other formats to MP3?

MP3 is the universal format that works on 100% of devices, players, editors, and platforms. Plus, it takes up less space than WAV or FLAC while maintaining excellent quality with adjustable bitrate options.

Are my audio files private?

Completely. Your audio never leaves your browser. We process everything locally with WebAssembly (FFmpeg). Other converters upload your files to servers. We can't see or store your audio.

What quality is the resulting MP3?

We offer quality options from 128 kbps (standard) to 320 kbps (high quality), perfect for music, podcasts, audiobooks, and most uses. If you need maximum quality, use our lossless WAV format.

How much does it reduce file size?

Depends on original format: WAV → MP3 (~90% reduction), FLAC → MP3 (~70% reduction), M4A → MP3 (similar size, better compatibility), OGG → MP3 (similar size).

Does it work on mobile devices?

Yes, PrivAudio works on iPhone, Android and tablets. Just need a modern browser (Safari, Chrome). No apps required.

Related Conversions

Video to MP3 MP4 to MP3 M4A to MP3

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