Convert audio filesin seconds.
Free online audio converter — supports MP4, WAV, FLAC, MP3, AAC, OGG, AIFF, and more. Convert to MP3, WAV, FLAC, M4A, OGG, or OPUS and download in seconds. No installation, no account.
Drag & drop your file here
or click to browse
Max file size: 200 MB
Your file is processed securely and deleted automatically after conversion.
Conversion Tools
Select a converter, or use the tool above to convert any file directly.
How It Works
Three steps from upload to download — no account, no waiting, no fuss.
Upload Your File
Drag and drop your file onto the converter, or click to browse. Accepts 17 formats including MP4, MOV, WAV, FLAC, ALAC, M4A, MP3, AAC, OGG, AIFF, AMR, AC3, WMA, and Opus — up to 200 MB.
Choose Format & Options
After upload, all available output formats are shown automatically. Select MP3, WAV, M4A, FLAC, AAC, OGG, or OPUS and choose your bitrate. Optional tools also appear: BPM detection and tempo change, key detection and pitch shifting, and trim/fade.
Download Your File
Conversion typically completes in seconds. Click download and your file saves directly to your device. Both the original and converted files are automatically deleted from our servers afterwards.
What's included
Conversion is the core — BPM detection, key detection, pitch shifting, and more are built right in.
FFmpeg Server-Side Conversion
Files are processed using FFmpeg — one of the most battle-tested audio conversion engines available. No browser plugins, no client-side processing that stalls on large files.
17 Input Formats, 7 Outputs
Accepts MP4, MOV, WAV, FLAC, ALAC, M4A, MP3, AAC, OGG, AIFF, AMR, AC3, WMA, Opus, and more. Converts to MP3, WAV, M4A, FLAC, AAC, OGG, or OPUS. Available outputs shown automatically based on your file.
BPM Detection & Tempo Change
Automatically detect the BPM of any audio file after upload. Then change the tempo to any target BPM — pitch preserved using FFmpeg's atempo filter. Useful for DJs, workout playlists, and transcription.
Key Detection & Pitch Shifting
Automatically detect the musical key of any audio file. Shift the key up or down by up to 12 semitones while preserving tempo, using the rubberband algorithm. Useful for singers, DJs, and music practice.
Files Deleted After 30 Minutes
Uploaded files and converted outputs are removed from our servers automatically. We do not store your audio permanently, and we never share it with third parties.
No Account Required
Start converting immediately — no email address, no password, no subscription. Visit the site, upload your file, and download the result. That's it.
Audio format guides
Understand the formats before you convert.
MP3 vs WAV: Which Format Should You Use?
The practical difference between the two most common audio formats, and when each one makes sense.
Read guide →Audio qualityLossless vs Lossy Audio Explained
What these terms actually mean, why it matters for conversion, and which formats fall into each category.
Read guide →How-toHow to Extract Audio from a Video File
You have an MP4, MKV, or MOV. You just want the audio track. Here is the straightforward way to do it.
Read guide →Want to understand audio formats in depth? Browse WikiSound — codec explanations, bitrate guides, and format comparisons, all in plain language.
Supported Formats
Upload any of these — converted output can be MP3, WAV, M4A, FLAC, AAC, OGG, or OPUS.
Input (17 formats)
Output (7 formats)
Conversion not working?
Common issues — unsupported files, size limits, unexpected output quality, or download errors — are usually quick to fix. Our troubleshooting guide covers the 7 most frequent failure scenarios with exact solutions.
Frequently Asked Questions
Common questions about QuickAudioConvert.