Compress Audio for Email
Voice notes and lesson recordings ride email badly: a few minutes of uncompressed sound clears the 25 MB attachment cap easily, and the recipient's provider bounces the mail long before that. This page squeezes the audio in the tab — speech compresses extremely well — and reports the new weight so the send either works or you know before writing the draft.
Current limit: up to 50 files · 1024 MB per file. Options vary by format.
Processing method varies by format. Check this page's privacy details before uploading sensitive files.
Frequently Asked Questions About Audio Compression
How small does audio need to be to email?
Under about 25 MB for Gmail and most major providers — a bar a low-bitrate voice recording clears in minutes of audio, where a WAV cannot.
Will compression hurt a music file?
The first steps down are nearly inaudible; push too far and cymbals and fades go first. Compress a copy and compare against the original.
Will my original file be changed?
The result is downloaded as a separate file. Keep your original until you have checked the Mailable audio.
What should I check before using the result?
Open the Mailable audio in the application that consumes it and spot-check the parts that matter to you; the original file stays untouched if you need to re-run with different options.
Does a lower bitrate always sound worse?
Lower bitrates remove more audio data and may reduce clarity, especially for music. Test speech and music separately before choosing the final setting.
Can I compress audio for an email attachment?
Yes. Choose an output format and bitrate, create the smaller copy, and compare its size with the recipient’s attachment limit.
Compress Audio for Email
Reduce an audio file for email attachments and upload forms by choosing a smaller bitrate or suitable output format.
How to Use
- Choose an audio file supported by the page.
- Select the output format and bitrate that fit the delivery purpose.
- Start compression and wait for browser processing to finish.
- Compare the file size and listen to the result before downloading it.
Best Use Cases
- Voice notes, interviews, and short recordings that exceed attachment limits.
- Sending a listening copy instead of an archival master.
- Preparing audio for a form or service with a strict upload size.
Output Format
The output format and bitrate follow the controls available on the audio page. MP3 is commonly accepted for sharing, while a higher bitrate is preferable when preserving more detail matters.
Privacy
Audio is processed in the browser using the existing compression workflow. Keep the original recording and confirm that you have permission to process and share it.