Workflow Use Cases

Audio for Email Attachment

Compress audio files to fit email attachment limits. Optimize audio for email. Free, private browser converter.

No File Uploads

100% Private

Instant Processing

Works Offline

Drag & Drop Your Files

or click to browse • Supports up to 20 files at once

MP4

MP3

MOV

WAV

WebM

FLAC

+more

Prepare Audio for Email

Email attachment limits (typically 25MB or less) make sending large audio files impossible. Our tool compresses audio files to fit email limits while preserving quality. Send voice recordings, podcasts, or music without file size rejection.

Preparing Audio for Email

Upload your audio file and select email-friendly compression settings. For voice recordings, 64-96kbps is sufficient. For music, 128kbps provides good quality. The resulting file will be small enough for most email providers.

Why Compress for Email?

Raw recordings and high-quality audio files easily exceed email limits. A 5-minute WAV recording can be 50MB. Compression to 128kbps MP3 brings this under 5MB - easily attachable.

Email Audio Use Cases

Sending voice recordings to colleagues
Sharing podcast drafts for review
Emailing interview recordings to team members
Sending audio samples to clients

Private Audio Processing

Audio you plan to email might contain sensitive content. Our local compression ensures it stays on your device until you choose to send it.

How It Works

1

Select Your Files

Drag and drop or click to select audio or video files from your device.

2

Local Processing

Files are processed directly in your browser - no server uploads.

3

Download Result

Get your converted files instantly. They never leave your device.

Format Guide & Compatibility

Use this quick guide to choose the right output settings for MP3 conversion.

Use MP3 when you need maximum device and app compatibility.
If quality is critical, compare MP3 output with lossless options like WAV or FLAC.
MP3 usually delivers smaller file size for sharing and storage.
Popular workflows for this tool include WAV -> MP3, FLAC -> MP3, M4A -> MP3.
All conversion runs locally in your browser, so your source files stay on your device.

WAV vs MP3 vs FLAC vs M4A

Format	File Size	Quality	Best For
WAV	Large	Lossless	Editing and archiving raw quality
MP3	Small	Good	Everyday listening, universal sharing
FLAC	Large	Lossless	Long-term archival and high-fidelity audio
M4A	Small to medium	Very good	Mobile playback and streaming

Troubleshooting

File is not supported

Re-export your source file in a common format and try again. Corrupted files may fail to decode.

Output has no audio

Your source may not contain an audio track, or it may use an uncommon codec. Try another source file to confirm.

Conversion is slow

Close heavy browser tabs and background apps. Local conversion speed depends on your device CPU and file size.

Large files fail

Split very large files into smaller parts or use a shorter clip first, then convert full media on a more powerful device.

Download did not start

Allow downloads for this site in browser settings and retry. Some blockers can prevent automatic file downloads.

Frequently Asked Questions

What's the typical email attachment limit?

Gmail, Outlook, and Yahoo allow 25MB attachments. Corporate email may be lower (10-20MB). For cloud-linked services, limits may be higher. Target under 20MB to be safe.

What bitrate keeps files under 25MB?

At 128kbps, you get about 1MB per minute. A 20-minute recording would be about 20MB - safely under the limit. Adjust bitrate based on your recording length.

Is the compressed audio still good quality?

For voice recordings, 64-128kbps sounds excellent. For music, 128kbps is quite good - adequate for reviews and sharing. Quality is lower than original but perfectly listenable.

What if my file is still too large?

Lower the bitrate further, or consider cloud sharing (Google Drive, Dropbox) instead of attachment. For very long recordings, cloud links are more practical than compression.

Should I use mono for email audio?

Mono halves file size compared to stereo. For voice recordings, mono is usually fine. Music might sound better in stereo, but mono works if size is critical.

Ready to Convert?

Start converting your files right now. No signup, no uploads, no waiting.