Nothing is uploaded: conversion happens on your device

Compress a MP3 file

Same format, lighter file, no upload: everything happens on your device. Included in Morfile Pro.

Compressing a MP3 is part of Morfile Pro

24-hour pass for €3.99 or lifetime access for €24.99, no automatic renewal. Conversion stays on your device, just like the free plan.

How to compress a MP3 file

  1. 1 Open the Morfile app and switch to “Compress” mode.
  2. 2 Choose a target size (under 1, 2, 5, 10 or 25 MB) or a quality level.
  3. 3 Drop your MP3 files, then download them lighter.

How Morfile makes your MP3 files lighter

Morfile re-encodes the sound at a lower bitrate, chosen to reach the size you want.

Aim for an exact size

In the app, choose a target size: under 1, 2, 5, 10 or 25 MB, or any value you like. Morfile finds the best quality that fits, and tells you clearly if it can’t be done.

Frequently asked questions

Is it free to compress a MP3 file?

MP3 compression is part of Morfile Pro: 24-hour pass for €3.99 or lifetime access for €24.99, no automatic renewal. JPG, PNG, WebP and PDF compress for free.

Is my MP3 file uploaded to a server?

No. Compression happens in your browser, on your device. Even a big video is processed with no upload time.

Will I lose quality?

Light compression is invisible. Strong makes the file as light as possible, with a loss you can see up close. For images, a slider compares before and after.

How do I get under an email size limit?

In the app, choose the “under 25 MB” target size (Gmail, Outlook) or “under 10 MB” for stricter mail services. Morfile does the rest.

Convert a MP3 file to…

Compress without changing format

MP3 files All formats