CAF to WEBM Converter
Convert CAF 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 CAF 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 CAF to WEBM
- Click "Choose files" or drag your CAF 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 CAF to WEBM?
WEBM files are typically 5-10x smaller than CAF, making them ideal for phones, sharing and streaming.
WEBM is best for web apps, HTML5 audio and browser-based recording. Chrome, Firefox, Edge, Android, VLC. Safari 15+.
Will I lose quality?
WEBM is a lossy format, so some inaudible detail is removed to save space. At 128 kbps or higher most listeners cannot tell the difference from the original CAF.
CAF vs WEBM
| CAF | WEBM | |
|---|---|---|
| Full name | Core Audio Format | WebM Audio (Opus) |
| Type | uncompressed | lossy |
| Best for | Xcode/iOS app sounds and very long Apple recordings | web apps, HTML5 audio and browser-based recording |
| Typical size | ~10 MB at 16-bit / 44.1 kHz per minute | ~0.9 MB at 128 kbps per minute |
| Compatibility | macOS, iOS, Logic Pro, Xcode. | Chrome, Firefox, Edge, Android, VLC. Safari 15+. |
| Developed by | Apple (2005) | Google (2010) |
CAF to WEBM: questions
How do I convert CAF to WEBM?
Open this page, add your CAF file, make sure WEBM is selected as the output format and click Convert. Your WEBM file is ready to download in seconds.
Will converting CAF to WEBM lose quality?
WEBM is a lossy format, so some inaudible detail is removed to save space. At 128 kbps or higher most listeners cannot tell the difference from the original CAF.
Is this CAF 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 CAF 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 CAF and WEBM?
CAF (Core Audio Format) is a uncompressed format, apple's modern container for long recordings with no 4 GB file size limit. 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 CAF to WEBM converter runs in any modern browser - Chrome, Safari, Edge or Firefox - on desktop and mobile. No software to install.