AMR to WEBM Converter
Convert AMR files to WEBM in seconds, right in your browser. Drop in one file or a whole folder, pick your quality settings and download - nothing is uploaded to a server.
Drop AMR files here
MP3, WAV, FLAC, M4A, OGG, OPUS, AAC, AIFF, WMA, AMR, MP4, MOV & more · Processed on your device - nothing is uploaded
How to convert AMR to WEBM
- Click "Choose files" or drag your AMR files onto the page.
- Make sure "WEBM" is selected as the output format (128 kbps is a good default).
- Optionally click Edit to trim, adjust volume or add effects.
- Click Convert, then Download your WEBM files.
Why convert AMR to WEBM?
WEBM may be better supported by your device or app. To keep quality, choose a bitrate equal to or higher than the original AMR.
WEBM is best for web apps, HTML5 audio and browser-based recording. Chrome, Firefox, Edge, Android, VLC. Safari 15+.
Will I lose quality?
Converting between two lossy formats re-encodes the audio, which can add a small amount of loss. Use a bitrate at least as high as the original (192 kbps or more) to keep it transparent.
AMR vs WEBM
| AMR | WEBM | |
|---|---|---|
| Full name | Adaptive Multi-Rate | WebM Audio (Opus) |
| Type | lossy | lossy |
| Best for | voice recordings from older phones | web apps, HTML5 audio and browser-based recording |
| Typical size | ~0.1 MB per minute | ~0.9 MB at 128 kbps per minute |
| Compatibility | Phones and some players; poor support on computers - convert it to MP3 to play anywhere. | Chrome, Firefox, Edge, Android, VLC. Safari 15+. |
| Developed by | - | Google (2010) |
AMR to WEBM: questions
How do I convert AMR to WEBM?
Open this page, add your AMR file, make sure WEBM is selected as the output format and click Convert. Your WEBM file is ready to download in seconds.
Will converting AMR to WEBM lose quality?
Converting between two lossy formats re-encodes the audio, which can add a small amount of loss. Use a bitrate at least as high as the original (192 kbps or more) to keep it transparent.
Is this AMR to WEBM converter free and safe?
Yes. It's free with no watermark or sign-up. Files are processed locally in your browser, so your audio is never uploaded or stored on our servers.
Can I convert many AMR files to WEBM at once?
Yes - add up to 5 files at a time on the free plan (unlimited with Pro), convert them all with one click and download them as a ZIP.
What is the difference between AMR and WEBM?
AMR (Adaptive Multi-Rate) is a compressed (lossy) format, a speech codec used for phone call recordings and older mobile voice memos. WEBM (WebM Audio (Opus)) is a compressed (lossy) format: opus audio in a WebM container - the native format of browser recordings and YouTube audio streams.
Does it work on Mac, Windows, iPhone and Android?
Yes. The AMR to WEBM converter runs in any modern browser - Chrome, Safari, Edge or Firefox - on desktop and mobile. No software to install.