AudioBento

Audio Compressor

Compress MP3, WAV, and other audio files online. Choose a compression level, compare sizes, and download MP3s.

Compression Level

Related Audio Tools

Audio CompressorCompress audio and music files to MP3 in your browser.MP3 CompressorCompress MP3 online with four bitrate levels and compare file sizes.M4A CompressorReduce M4A file size with four AAC bitrate levels and compare results.WAV CompressorReduce WAV file size by adjusting bit depth and sample rate.OGG CompressorReduce OGG size with adjustable Vorbis quality.AAC CompressorReduce AAC file size with adjustable bitrate and sample rate.

How to compress audio files

  1. 1

    Choose your audio

    Add MP3 music, WAV recordings, or other supported audio files from your device. Review the list and listen to an original before compression.

  2. 2

    Choose a compression level

    Select Light, Medium, Heavy, or Extreme for the whole list. Stronger compression uses a lower bitrate and can reduce audio detail.

  3. 3

    Compress and download

    Compress your audio files and compare original and MP3 sizes. Download saves a single-file result directly; Download ZIP collects successful results when your list contains multiple files. Each result also has its own download.

Smaller audio files for everyday use

Choose an MP3 bitrate for music and voice recordings, then check the actual file size.

01

Choose your compression level

Choose from four fixed MP3 bitrates. Medium is selected initially. Each attempt starts from your original audio, and every valid output is available to download.

  • Light keeps more detail at 192 kbps.
  • Medium balances size and quality at 128 kbps.
  • Heavy uses 96 kbps; Extreme uses 64 kbps for the smallest audio output.

Compression example

Light192 kbps
Medium128 kbps
Heavy96 kbps
Extreme64 kbps
02

Prepare recordings for sharing

Compress audio recordings or sound files for sharing as MP3s. Compare actual file sizes before downloading; a selected level does not guarantee a smaller result.

  • Compare original and output sizes.
  • Listen to the actual compressed result.
  • Keep the original file on your device.

Compression example

WAVFLACM4A
MP3

Compare actual file sizes before sharing.

MP3
03

Keep useful music information

Compress music files, including MP3 songs and WAV tracks, while retaining supported text tags and JPEG or PNG cover art. Metadata adds to file size, and unsupported tags or covers may be omitted.

  • Retain compatible title and artist tags.
  • Copy supported embedded album artwork.
  • MP3 compression cannot restore lost detail.

Compression example

Compatible tags + supported album cover

MP3
04

Handle a folder of recordings

Process your selected recordings one at a time with the same settings. A failed file does not erase earlier results. Download the available MP3 files together when you are ready.

  • Use one compression level for the batch.
  • Retry failed items or change the level.
  • Download only available results in a ZIP.

Compression example

01 · MP3Processed
02 · MP3Processed
03 · MP3Processed

Download ZIP

Successful files only

Audio compression questions

Which audio formats can I compress?
You can compress an MP3 file or a WAV file, along with FLAC, M4A, OGG, and AAC recordings. Every successful result is MP3. Source channels and compatible sample rates are retained where possible; unsupported combinations are adjusted for MP3 encoding.
What do the four compression levels change?
Light uses 192 kbps, Medium 128, Heavy 96, and Extreme 64. Medium is the default. Extreme prioritizes size over detail, especially for stereo music. Channels are preserved where MP3 supports them; listen before choosing a result.
Is audio compression lossless?
No. This tool encodes audio as lossy MP3, which can remove sound detail. Re-encoding a lossy source cannot recover information it has already lost. Keep your original file, and use Light when preserving more detail matters.
Why might my compressed MP3 be larger?
Small files and low-bitrate recordings may become larger when re-encoded as MP3. Tags and artwork can add bytes. A valid output remains available to download, even when it is not smaller than the original.
Will my audio tags and album cover remain?
Compatible text tags and embedded JPEG or PNG album covers are retained where the input and MP3 container support them. Unsupported fields or artwork can be omitted. Metadata adds bytes, so keeping it can reduce the overall space saved.
What happens when I change the level or cancel?
Changing the level keeps existing downloads until a new valid result replaces them. Compress Audio always uses the original file. A failed or cancelled attempt keeps the previous download.
How many files can I process?
Select up to 10 files on desktop or 5 on mobile, within combined input budgets of 200 MB and 100 MB. Output, retained results, and ZIP budgets also apply. Long recordings depend on your browser and device resources.
Is my audio uploaded, and do I need an account?
Your audio is processed locally in your browser without an account or audio upload. The engine downloads its code on first use. Keep the page open while processing and save your results before leaving; browser results are temporary.

Compress audio files for easier sharing

Compress MP3 songs or WAV recordings, compare original and output sizes, and download results individually or as a ZIP.