WebM to CAF - Online Audio Converter

Convert WebM to CAF online. Private, client-side - no uploadrequired. Batch conversion, quality presets, codec control.

Convert WebM to CAF

[+] Drop WebM audio here or click to select WebM

Output format

CAF (PCM 16-bit)

Mode[i]

Simple Advanced

Quality[i]

Sample Rate[i]

Channels[i]

About WebM to CAF

Convert WebM to CAF. WebM pairs VP9 video with Opus audio and supports an alpha channel. CAF is Apple's 64-bit container for large recordings beyond WAV limits. Few Windows tools open it; convert WAV for sharing..

Why convert WebM to CAF?

Larger files than lossy shares with CAF uncompressed quality.
Keep quality where supported.
Private, no upload - runs in your browser.

WebM vs CAF

Animation	Yes	No
Transparency	Yes	No
Compression	lossy	uncompressed
Typical use	WebM pairs VP9 video with Opus audio and supports an alpha channel.	CAF is Apple's 64-bit container for large recordings beyond WAV limits.

When not to convert WebM to CAF

Skip CAF for the smallest share: lossless output stays large, so prefer a lossy target when sending WebM files.
Flatten transparency first: CAF has no alpha channel, so composite WebM over a background color.

Limits

Starting point: WebM - VP9 video with Opus audio and alpha support. Apple editors accept it unevenly; keep MP4 for editing round-trips. Few Windows tools open it; convert WAV for sharing. Encode CAF (CAF) from WebM at a bitrate near the source, and confirm the audio track before converting.

How conversion works

Conversion runs entirely in your browser with FFmpeg WASM. Files never leave your device.

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FAQ

How do I convert WebM to CAF?

Drop your WebM file onto this page, choose quality and codec settings, then click Convert. The result downloads as CAF instantly. All processing runs in your browser.

What codec is used for CAF?

The default codec for CAF is PCM 16-bit. You can change audio parameters in Advanced mode.

How do you store my files?

We do not store any processed audio. All conversion happens entirely in your browser using FFmpeg WASM.