Online Audio Compressor

Upload video



MP3, WAV, FLAC, M4A, OGG, MP4, WebM, AVI, MPEG, MKV, FLV, OGG, MOV, M4V, WMV, ASF, 3GP and other video files
Max file size: 200MB

All uploaded files are automatically deleted 1 hour after upload.
For permanent links you can use: https://ezgif.com/compress-audio?url=https://example.com/source-video.mp4

Free Online Audio Compressor — Reduce Audio File Size

Compress and reduce the file size of your audio files online for free. This tool re-encodes audio at a lower bitrate to produce significantly smaller files, ideal for email attachments, web uploads, or saving storage space. Supports MP3, WAV, FLAC, M4A, OGG and other audio formats up to 200MB.

How to Compress Audio Online:

  1. Upload: Choose an audio file from your device or paste a URL.
  2. Set options: Choose output format, bitrate, sample rate, and channel mode.
  3. Compress: Click "Compress audio!" and download the smaller file.

Key Features

  • Adjustable bitrate: Select from 32 kbps (small, lower quality) to 320 kbps (large, high quality).
  • Format conversion: Convert to MP3, M4A (AAC), or OGG Vorbis during compression.
  • Sample rate control: Reduce sample rate for even smaller files (e.g., 22050 Hz for speech).
  • Mono conversion: Convert stereo to mono to roughly halve the file size.

Tip: For music, 128 kbps MP3 offers a good balance of quality and file size. For speech or podcasts, 64 kbps is usually sufficient. WAV and FLAC files can often be reduced by 80-90% by converting to MP3 or OGG format.

See also: Audio cutter, Volume booster, Fade in/out.