Online Audio Converter
Fast, Free & Private Audio Conversion
Convert audio files between MP3, WAV, OGG, M4A, AAC and FLAC without installing anything. Your files are processed locally and never leave your device.
What you control
- Input formatsMP3 / WAV / OGG / M4A / AAC / FLAC
- Output formatsSame six, any direction
- Files per runOne at a time
- Uploads to serversNone
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How to convert audio
- 01Add your audioDrop in an MP3, WAV, OGG, M4A, AAC or FLAC file from your device.
- 02Pick the output formatChoose any of the six supported formats - the conversion runs locally.
- 03Download your filePreview the result and download it instantly with the new extension.
Features
Six formats both ways
Move between MP3, WAV, OGG, M4A, AAC and FLAC in any direction you need.
Lossless when it matters
WAV and FLAC outputs keep full quality for editing and archival work.
Small MP3 when it doesn't
MP3 and M4A outputs give you compact, shareable files for messages and web.
Private by design
Conversion happens inside your browser - the file is never transmitted to a server.
No installs or accounts
There's no software to download and no signup wall between you and your file.
Works on any device
Open it on a phone, tablet, or desktop - everything runs in the browser.
Built for everyday audio jobs
Why convert audio in the browser
Zero upload wait
A 50 MB track never travels anywhere, so there is no upload progress bar to sit through.
Sensitive audio stays local
Interviews, voice notes, and private recordings stay inside your browser sandbox.
Predictable results
You pick the exact format, so the output is consistent every single time.
Free forever
No daily quota, no paid tier, and no watermark on the downloaded file.
What actually changes when you convert an audio file
An audio file is just sound waves stored as numbers. Different formats store those numbers differently - WAV keeps every sample as raw data, MP3 throws away frequencies your ear is unlikely to miss, and OGG and M4A sit somewhere in between with smarter compression. Converting moves the same sound from one container into another.
Lossless formats like WAV and FLAC are the right choice when you plan to edit or archive, because nothing is discarded. Lossy formats like MP3, OGG and M4A trade a little detail for a much smaller file, which is what makes them perfect for sharing over chat or uploading to the web.
The practical rule is simple: keep a lossless master if you have one, and convert to MP3 or M4A only for the copy you send out. Your master stays clean while the shared file stays small.
“I keep my recordings as WAV and only convert to MP3 for client email, so quality never suffers.”
Sana Qureshi - Voiceover artist
“FLAC for my samples folder, OGG for the web previews - the converter handles both without leaving my browser.”
Diego Ramos - Music producer
“Knowing files never get uploaded means I can safely convert unreleased episodes before publishing.”
Meena Iyer - Podcast editor
Frequently asked questions
How does this audio converter work?
Your browser decodes the source file and re-encodes it into the format you picked, all locally - nothing is uploaded to a server.
Which formats can I convert?
MP3, WAV, OGG, M4A, AAC and FLAC are supported both as input and output.
Will converting reduce audio quality?
Converting to a lossless format (WAV, FLAC) keeps full quality. Converting to a lossy format (MP3, OGG, M4A, AAC) may discard some inaudible detail to shrink the file.
Is there a file size limit?
Files up to 100 MB are supported, which covers most songs, voice memos and podcast episodes.
Do I need to install anything?
No. The converter runs entirely in your browser on any device with an internet connection.
Are my files kept private?
Yes. Processing happens on your device, so your audio is never stored or transmitted.