Audio Compressor
Make an audio file much smaller for sharing or upload. No account, no ad.
The download link expires 1 hour after you download. Nothing is added to your file.
Drop an audio file (WAV, M4A, FLAC, OGG, MP3 and 9 more, up to 100 MB) and get a smaller MP3. A 3-minute 31.8 MB WAV became a 2.2 MB MP3 on Balanced (96 kbps). The MP3 never uses more bits than your file had. No account, no ad.
Why use Audio Compressor?
Picked for what you recorded
Smaller file is 64 kbps mono, plenty for voice. Balanced is 96 kbps for podcasts. Best quality is 128 kbps for music.
Never padded
If your file already uses fewer bits than the setting, we keep its bitrate instead of inflating it.
Then get the words
Turn the same audio into a transcript in one click. The first 30 minutes are free without an account.
How it works
Drop your audio
Pick or drag an audio file up to 100 MB.
Pick a setting
Smaller file for voice, Balanced for podcasts, Best quality for music.
Download the MP3
Save the smaller MP3, or get the transcript of the same audio.
What you get, measured
One real file, three settings
Measured November 15, 2026 on a 3-minute stereo WAV (31.8 MB).
| Setting | MP3 you get | Size |
|---|---|---|
| Smaller file | 64 kbps mono | 1.4 MB (96% smaller) |
| Balanced | 96 kbps stereo | 2.2 MB (93% smaller) |
| Best quality | 128 kbps stereo | 2.9 MB (91% smaller) |
Frequently asked questions
Drop it here, pick Smaller file, Balanced or Best quality, and press Compress audio. Then download the MP3.
Smaller file. 64 kbps mono keeps speech clear and makes the smallest file, which also uploads fastest.
Yes, but if it already uses fewer bits than the setting, the result stays close to its size. We never raise the bitrate above your file's.
MP3 plays on every phone, computer and car, and it is what most upload forms accept.
You can download the converted file until one hour after your first download, or for 24 hours if you never download it. After that the link stops working and the job is removed. Nothing is added to your file or its name.
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