Compress and share

Reduce audio file size locally.

Choose a lower bitrate to create a smaller audio copy.

No uploadFiles stay in the browser tab.
No accountUse the tool immediately.
Browser processingSpeed depends on your device and file size.

Reduce Audio File Size

Pick a bitrate and export a smaller MP3 copy. Local browser processing starts only after you choose a file.

Local

Your selected file stays in this browser tab. It is not uploaded to a conversion server.

Ready.

How to use Reduce Audio File Size

  1. Choose audio file.
  2. Pick a bitrate. Lower bitrate usually means a smaller file and less detail.
  3. Start local compression and keep this tab open.
  4. Download the compressed MP3 when it is ready.

FAQ

Specific answers for this tool, not generic converter copy.

What is the fastest way to reduce size?

Lower the bitrate. Speech can often use a lower bitrate than music.

Will the file stay private?

Yes. The selected file is processed locally and is not uploaded to a conversion server.

Why is my output not smaller?

Some files are already compressed. Re-encoding can sometimes produce a similar or larger file.