Audio converter

Convert audio and video files to MP3, WAV, FLAC, M4A directly in your browser. No installs, no uploads (total privacy). Note: This only changes the file's container; it cannot make the original audio sound better.

What is audio format conversion?

It's repackaging audio data into a different standard. There are two main groups: <ul> <li><strong>Lossless (WAV, FLAC):</strong> Keeps 100% of the original sound, but files are huge.</li> <li><strong>Lossy (MP3, M4A, OGG):</strong> Discards frequencies the human ear barely notices to shrink file size.</li> </ul> <em>The golden rule:</em> Going from Lossless to Lossy loses data permanently. Going the other way only wastes your disk space!

Does converting MP3 to WAV make it sound better?

<strong>No.</strong> MP3 is lossy. The data thrown away during that first compression is gone for good. Converting it back to WAV just inflates the file size 5-10x with zero quality improvement. You can't bring back lost data.

How to maintain the best quality when converting?

<ol> <li><strong>If your source is WAV/FLAC:</strong> Keep it that way, or convert to another lossless format.</li> <li><strong>If you need smaller files:</strong> Compress straight from the original source to MP3 or M4A <em>once</em>. Never compress an already compressed file.</li> </ol>

Does round-trip converting degrade quality?

<strong>Yes</strong>, if lossy formats are involved. Every time you convert between lossy formats (e.g., MP3 to M4A), the encoder throws away more data. The more round trips, the worse it sounds. Best practice: Keep one lossless master (WAV) and encode from it whenever you need a new format.

Quick format selection guide

<table> <thead> <tr><th>Use Case</th><th>Format</th><th>Why</th></tr> </thead> <tbody> <tr><td>Sharing, emails, older devices</td><td><strong>MP3</strong></td><td>Universal compatibility, very small size.</td></tr> <tr><td>Listening on modern devices</td><td><strong>M4A</strong></td><td>Better sound than MP3 at the same file size.</td></tr> <tr><td>Professional audio/video editing</td><td><strong>WAV</strong></td><td>100% original quality, zero compression latency.</td></tr> <tr><td>Long-term storage</td><td><strong>FLAC</strong></td><td>Exact same quality as WAV but at half the size.</td></tr> </tbody> </table> <em>Tip:</em> Need just a short clip? Use our in-browser Audio cutter.

Who needs an audio converter?

• Shrink massive meeting recordings into lightweight MP3s for sharing
• Rescue weird audio formats so older devices can actually play them
• Prep uncompressed WAV/FLAC files for video and music editors
• Squeeze huge audio files to fit email or chat app limits
• Extract just the audio track out of a video file

The converter runs entirely in your browser: the file is never uploaded anywhere, and it keeps working on a flaky connection.

1. 1

   Pick the file to convert

   Drag in an audio or video file. For video, the picture is discarded and only the audio track is kept.

2. 2

   Choose the target format

   MP3 for small files and the widest compatibility, WAV or FLAC when you need the quality intact for further processing, M4A for the Apple ecosystem.

3. 3

   Set the bitrate for MP3 or M4A

   A higher bitrate means a bigger file and less lost detail. 192 to 320 kbps is the usual range for music.

4. 4

   Convert and download

   Hit convert, wait for the progress bar to finish, then hit download. The new file is produced in the browser; the original is left unchanged.

• Converting only repackages the audio data into a different container. It does not make a recording sound better.
• Going from MP3 to WAV cannot recover the detail lost in the first compression. It only makes the file larger.
• Very long files use a lot of browser memory, because all the data is processed on your machine.