Is the audio conversion free?

Yes, completely free. There are no limits on conversions, no account required, and no watermarks added.

Are my audio files uploaded anywhere?

No. All conversion is done by FFmpeg WebAssembly running entirely inside your browser. Your files never leave your device.

Why does the tool need a moment to load?

FFmpeg WebAssembly (~10 MB) is downloaded once on first use and then cached by your browser. Subsequent conversions start immediately.

What is the maximum file size?

200 MB per file. For very large files, browser memory may be the limiting factor depending on your device.

Can I convert multiple files at once?

Yes. Add up to 5 files and convert them all in one session. Each file converts and downloads independently.

Will converting change the audio quality?

Converting to WAV is lossless. Converting between lossy formats (MP3, OGG) involves re-encoding, so use the highest bitrate your use case allows to minimise quality loss.

Audio Converter

Convert audio files between MP3, WAV, OGG, and WEBM formats instantly in your browser — no upload, no account required.

Last updated: April 2026

Drag & drop audio files here

or click to browse

MP3WAVM4AOGGFLACAAC·up to 200.0 MB

Conversion Settings

Output format

MP3 quality

128 kbps — smaller file192 kbps — balanced320 kbps — best quality

Audio conversion runs entirely in your browser using FFmpeg WebAssembly. Files are never uploaded.

What it does

All major formats supported

Input: MP3, WAV, M4A, OGG, FLAC, AAC, WEBM. Output: MP3, WAV, OGG, WEBM.

Quality control for MP3

Choose 128 kbps (small file), 192 kbps (balanced), or 320 kbps (highest quality).

Batch conversion

Convert up to 5 audio files in one session with per-file progress tracking.

Runs in your browser

FFmpeg WebAssembly processes files locally — nothing is uploaded to any server.

Instant download

Each converted file downloads as soon as it is ready — no waiting for a zip.

How to use Audio Converter

1
Upload your audio file
Drag and drop or click to browse. Supports MP3, WAV, M4A, OGG, FLAC, AAC, and WEBM up to 200 MB.
2
Choose output format
Select MP3, WAV, OGG, or WEBM as your target format.
3
Set quality (MP3 only)
For MP3 output pick 128, 192, or 320 kbps based on your size/quality preference.
4
Click Convert
FFmpeg runs in your browser — watch the progress bar as your file is processed.
5
Download the result
Click the download button when conversion completes. The file saves directly to your device.

When to use this

Making audio compatible with a device or app

Convert FLAC or M4A to MP3 for players that only support MP3.

Reducing file size for sharing

Convert WAV (lossless, large) to 128 kbps MP3 before attaching to an email.

Preparing audio for web upload

Convert to OGG or WEBM for better browser codec support.

Archiving at maximum quality

Convert any lossy format to WAV for uncompressed archival.

Technical details

Processing engine	FFmpeg 6 via WebAssembly (FFmpeg.wasm)
Input formats	MP3, WAV, M4A, OGG, FLAC, AAC, WEBM
Output formats	MP3, WAV, OGG, WEBM
MP3 bitrates	128 kbps, 192 kbps, 320 kbps
Max file size	200 MB per file
Processing location	Entirely in your browser — nothing is uploaded

Frequently Asked Questions

Is the audio conversion free?: Yes, completely free. There are no limits on conversions, no account required, and no watermarks added.
Are my audio files uploaded anywhere?: No. All conversion is done by FFmpeg WebAssembly running entirely inside your browser. Your files never leave your device.
Why does the tool need a moment to load?: FFmpeg WebAssembly (~10 MB) is downloaded once on first use and then cached by your browser. Subsequent conversions start immediately.
What is the maximum file size?: 200 MB per file. For very large files, browser memory may be the limiting factor depending on your device.
Can I convert multiple files at once?: Yes. Add up to 5 files and convert them all in one session. Each file converts and downloads independently.
Will converting change the audio quality?: Converting to WAV is lossless. Converting between lossy formats (MP3, OGG) involves re-encoding, so use the highest bitrate your use case allows to minimise quality loss.