Compress Audio for WhatsApp

Practical focus

Use this page to make recordings, voice notes, and short music clips easier to send in WhatsApp.

Quick tips

• MP3 is a reliable sharing output.
• Mono is fine for voice messages.
• If sending fails, try a 10MB or 16MB target with margin.

How to use

• Choose MP3 output when sending to mixed devices or contacts.
• For voice recordings, use mono at 64-96 kbps.
• For iPhone M4A voice memos, convert to MP3 if compatibility matters.
• If WhatsApp rejects the file, try Target Size at 10MB or 15.5MB instead of compressing blindly.

Recommended settings

Supported formats

MP3 and M4A are practical for WhatsApp audio sharing.

WAV sources should usually be converted to MP3 before sending.

Quality vs file size

WhatsApp sharing is usually about compatibility and a manageable file size, not archival quality.

Voice can use mono without losing important content. Music clips need more bitrate to avoid sounding harsh.

Privacy and local processing

Compression runs in your browser, so the original audio is not uploaded to a server.

Large files can still be slow because decoding and encoding use your device memory and CPU.

Things to watch

• WhatsApp limits can vary by device, app version, and file type, so keep size margin.
• Do not chase an exact platform limit; target a little below it.