Smaller Files, Same Workflow
Compress Audio Files (Free & Online)
Compress audio files directly in your browser without uploads. Reduce file size for email, WhatsApp, forms, podcast delivery, and faster sharing.
- Lower file size with bitrate, format, and channel changes
- Useful for MP3, WAV, AAC, M4A, FLAC, and more
- Private local processing with no upload queue
Ready to Convert
Convert Files in Your Browser
Drop files, pick the output format, and convert locally without uploads or signup.
No signup
No upload wait
Batch ready
How to compress audio files
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1
Add the files you need to shrink
Queue one recording or a batch of larger audio files.
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2
Pick a smaller format or bitrate
Use MP3 or AAC for distribution, then lower bitrate if needed.
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3
Convert and download the lighter copy
The smaller file is generated locally and ready to share.
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Best ways to compress audio
- Change format: convert WAV or FLAC to MP3 or AAC.
- Lower bitrate: 96-128 kbps works well for speech.
- Use mono for voice: interviews and meetings rarely need stereo.
- Keep one original copy: compress a duplicate, not your master.
Recommended compression settings by use case
- Voice notes and meetings: MP3, 96 kbps, mono.
- Podcasts and spoken content: MP3 or AAC, 96-128 kbps.
- Music sharing: MP3, 192 kbps stereo.
- Upload forms with strict size limits: AAC or MP3, 64-96 kbps for speech-first audio.
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Need a smaller audio file now?
Drop the recording above, use a smaller format or bitrate, and download a lighter copy that is easier to send and upload.