PARAFAX
Fax over Google Voice. For free.
The first-ever software-defined fax machine. Real T.30 protocol running over Opus/WebRTC in a Chrome extension. No phone line, no hardware.
T.30 over WebRTC
Real fax protocol via spandsp WASM, running entirely in the browser. No phone line needed.
Opus codec breakthrough
Solved bitrate collapse with a 3-part warmup strategy. First-ever reliable fax over Opus/WebRTC.
Chrome extension
Install in seconds. Uses your existing Google Voice number. No new hardware, no new accounts.
Rate negotiation
9600 → 7200 → 4800 → 2400 bps automatic fallback. Adapts to line quality in real time.
Simple pricing
Free
$0forever
Send unlimited faxes
Plus
$1/mo
Track all faxes + receive incoming faxes
API
$5/mo
Full API access for programmatic faxing
Launch at fax.wax.sh imminent