Is this audio converter really free?

Yes, completely free with no signup, no watermarks, and no limits. All processing happens in your browser using WebAssembly technology.

Are my files uploaded to a server?

No. All audio conversion is performed locally in your browser using ffmpeg.wasm. Your files never leave your device, making this tool completely private and secure.

What audio formats are supported?

This tool supports conversion between MP3, WAV, FLAC, AAC, M4A, OGG (Vorbis), WMA, AIFF, ALAC (Apple Lossless), and AC3 (Dolby Digital). It can also extract audio from video files like MP4, MKV, AVI, MOV, and WebM.

Can I convert multiple files at once?

Yes! You can upload multiple files and use the batch conversion feature to convert them all sequentially. Each file is processed one at a time and you can download them individually or all at once.

What is the difference between lossy and lossless audio formats?

Lossy formats (MP3, AAC, OGG, WMA, AC3) compress audio by removing some data, resulting in smaller files but slightly reduced quality. Lossless formats (WAV, FLAC, AIFF, ALAC) preserve all original audio data, resulting in larger files with perfect quality. Choose lossy for streaming and portability, lossless for archiving and professional use.

Free Online Audio Format Converter (No Signup)

♪ How to Use

Upload an audio or video file (drag & drop or click)
Choose your desired output format
Adjust quality settings if needed
Convert and download your file

🔒 100% Private — all processing happens in your browser. No files are uploaded.

💾

Drag & drop audio or video files here

or click to browse — supports MP3, WAV, FLAC, AAC, MP4, MKV, AVI, and more

🎥 Video file detected — audio will be extracted and converted to your chosen format.

File Information

Input:

Batch Queue

Select Output Format:

Lossy MP3 Universal

Lossless WAV Uncompressed

Lossless FLAC Compressed

Lossy AAC Modern

Lossy M4A Apple/iTunes

Lossy OGG Open Source

Lossy WMA Windows

Lossless AIFF Apple PCM

Lossless ALAC Apple Lossless

Lossy AC3 Dolby Digital

⚙ Quality & Settings

▼

Bitrate

Sample Rate

Channels

⚙ Advanced Options

▼

Trim Audio

Start Time (seconds)

End Time (seconds)

Volume

Volume: 100%

Loudness Normalization (overrides volume slider)

Fade Effects

Fade In: 0s

Fade Out: 0s

Metadata Tags

Title

Artist

Album

Year

Genre

Preparing...

Conversion Complete!

Output:

♪ How to Use

File Information

Batch Queue

⚙ Quality & Settings

⚙ Advanced Options

Conversion Complete!

🕒 Conversion History