Compress Audio Files Online

Shrink your audio files to a fraction of their size. Choose your bitrate, compress, and download — fast and free.

How it works

  1. Upload your audio file. Drag and drop an audio file into DomeScribe or click the upload area to select one from your device. MP3, WAV, FLAC, M4A, and OGG files are all accepted.
  2. Choose bitrate or quality level. Select your target bitrate or pick a quality preset. Lower bitrates produce smaller files, while higher bitrates preserve more audio detail.
  3. Compress your audio. Click Compress and DomeScribe will re-encode your audio file at the chosen quality level. The process usually takes just a few seconds.
  4. Download the compressed audio. When compression finishes, download the smaller audio file directly to your device. DomeScribe shows the final file size so you can see exactly how much space you saved.

Audio compressor at a glance

Input formats
MP3, WAV, FLAC, M4A, OGG
Quality control
Choose your own target bitrate — from small spoken-word files to near-lossless music
Privacy
Compression runs in your browser — the file never leaves your device
Free tier
10 compressions per month
Setup
None — works in the browser on any device

Frequently asked questions

Does compressing audio affect sound quality?

At moderate bitrates (128 to 192 kbps for MP3) most listeners will not hear a difference. DomeScribe lets you choose your bitrate so you can find the right balance between file size and audio fidelity.

What audio formats can I compress?

DomeScribe supports compressing MP3, WAV, FLAC, M4A, and OGG audio files. The tool re-encodes the audio at your chosen quality settings to produce a smaller file.

What is the maximum audio file size I can upload?

DomeScribe handles large audio files with ease. The free tier supports generous file sizes suitable for podcasts, music, and recordings. Check your plan for specific upload limits.

Is DomeScribe audio compression free?

Yes, DomeScribe offers free audio compression. Upload your audio file, pick a quality level, and download the compressed result.

Can I compress a WAV file to MP3?

Yes. Uploading a WAV file to DomeScribe and selecting a target bitrate will produce a compressed MP3 output. This is a great way to shrink large WAV recordings for sharing or streaming.

What is the best way to compress audio files online?

DomeScribe compresses audio free and entirely in your browser — the file never leaves your device. Pick a target bitrate (128–192 kbps MP3 is transparent for most spoken word and casual listening) and download the smaller file seconds later. It handles MP3, WAV, FLAC, M4A, and OGG.

What bitrate should I use for spoken word vs music?

For spoken word — podcasts, voice memos, lectures — 96 to 128 kbps MP3 sounds clean and keeps files small. For music, use 192 kbps or higher; 256–320 kbps is effectively indistinguishable from lossless for most listeners. DomeScribe lets you choose the bitrate so you can match it to the content.

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  • Extract Audio from Video — Extract audio from any video file or URL. Save as MP3, M4A, FLAC, or WAV. Free, fast, no software to install.