Audio Converter Online Free — WAV to MP3, MP3 to WAV (2026)

Step 1: Upload Your Audio File

Drag & drop your audio file here

or click to browse

Supported: MP3, WAV, OGG, FLAC, AAC, M4A, WEBM | Max file size: 20MB | Max duration: 5 minutes

Why Use Our Free Audio Converter?

100% Private & Secure

All audio conversion happens in your browser. Your files never leave your device.

Fast & Efficient

High-quality audio conversion powered by FFmpeg running directly in your browser.

Completely Free

No registration, no hidden fees, no limits. Convert as many audio files as you need.

Supported Audio Formats

MP3

Most popular compressed audio format. Great for music and speech with excellent compatibility.

WAV

Uncompressed audio format. Perfect for professional audio work and editing.

OGG

Open-source compressed format. Better quality than MP3 at similar bitrates.

FLAC

Lossless compressed format. Preserves original audio quality with smaller file size.

AAC

Advanced audio codec. Better quality than MP3 at the same bitrate.

M4A

Apple's audio format. Excellent quality and widely supported on iOS devices.

Free Audio File Converter - Convert Audio Online

Our free audio file converter makes it easy to convert between different audio formats directly in your browser. Whether you need to convert MP3 to WAV, WAV to MP3, or between any other audio formats, our tool provides fast, high-quality conversions without uploading your files to a server.

How to Convert Audio Files

Upload your audio file - Drag and drop or click to browse (max 20MB, up to 5 minutes)
Choose output format - Select from MP3, WAV, OGG, FLAC, AAC, or M4A
Select quality - Choose high, medium, or low quality based on your needs
Convert and download - Click convert and download your converted audio file

Why Convert Audio Files?

Compatibility - Convert to formats supported by different devices and software
File Size - Compress large WAV files to smaller MP3 or AAC files
Quality - Convert to lossless formats like FLAC for archival purposes
Platform Requirements - Meet specific format requirements for different platforms
Editing - Convert to WAV for professional audio editing

Common Conversion Use Cases

MP3 to WAV - Convert compressed audio to uncompressed for editing
WAV to MP3 - Reduce file size for easier sharing and storage
FLAC to MP3 - Convert lossless audio to compatible compressed format
M4A to MP3 - Convert Apple audio files to universal format
Any to AAC - Convert to high-quality compressed format

Frequently Asked Questions

What audio formats can I convert between?

You can convert between MP3, WAV, OGG, FLAC, AAC, and more. The converter handles all common audio formats and processes everything directly in your browser — no upload to any server required.

Is this audio converter really free?

Yes, completely free with no limits. There are no file size restrictions, no watermarks, and no sign-up required. The tool runs entirely in your browser using JavaScript, so your files never leave your device.

Is it safe to convert audio files online?

This converter is 100% browser-based. Your audio files are processed locally on your device using the Web Audio API — nothing is uploaded to a server. Your files stay private and secure at all times.

What is the difference between lossy and lossless audio formats?

Lossy formats (MP3, AAC, OGG) compress audio by removing data the human ear is less likely to notice, resulting in smaller files. Lossless formats (WAV, FLAC) preserve the original audio quality with no data loss but produce larger files. Choose lossy for sharing and streaming, lossless for editing and archiving.

When should I convert MP3 to WAV?

Convert MP3 to WAV when you need to edit audio in a DAW (digital audio workstation), import into video editing software, use in broadcast playout systems, or when an application requires uncompressed audio input. WAV is the standard working format for professional audio production.

Free Audio File Converter