- Install the Pragmaz Chrome extension (free)
- Enable voice and video calls in Options
- Start a call directly from WhatsApp Web in your browser
- Without installing WhatsApp Desktop, no extra software
Before you start
WhatsApp Web (web.whatsapp.com) has no native call button. Only WhatsApp Desktop (the installable app) does. Pragmaz is a Chrome extension that adds that button directly to the Web interface — no app install, no window switching, no phone needed.
Being a Chrome extension, it works on Windows, Mac and Linux. Everything runs in the browser tab — no admin needed to install, doesn't bloat your PC. Uses your system default microphone directly.
Step by step tutorial
Watch the video (1 minute) or follow the 6 steps below:
Install the Pragmaz extension on Chrome
Go to Options and open the Calls tab
Toggle "Voice and Video Calls" and click Save
Open a chat — a camera icon appears at the top right
Click the icon and choose voice or video call
Setup is one-time. Next time you open WhatsApp Web, the camera icon will already be there in every chat. Bonus: you can use this same extension to make automatic bulk calls with recorded audio.
Manual call vs automatic call
Pragmaz offers two call modes on WhatsApp Web:
1. Manual call (one by one)
Works like a normal call: you select the contact and start the call. The difference is you don't need WhatsApp Desktop — everything is done from the browser. Ideal for salespeople who want to call hot leads without leaving WhatsApp Web.
2. Automatic bulk call (audio broadcast)
This is Pragmaz's exclusive feature: you record audio once, upload it and schedule the broadcast as a call to a list of contacts. When the recipient answers, they hear your recorded audio — as if it were a live call.
- Audio upload up to 100MB
- Select contacts directly from WhatsApp Web or paste a list of numbers
- Controlled cadence — random interval between calls to protect your account
- Real-time report — track who answered, who missed, duration
A WhatsApp text message has a ~98% open rate, but a call demands immediate attention. When the phone rings, the person stops what they're doing and answers. It's the highest-attention format on WhatsApp — and Pragmaz is one of the only tools that automates this.
Bulk calls from WhatsApp Web
The bulk call feature is ideal for:
- Active prospecting — call dozens of leads with a recorded offer
- Collections — automatic payment reminder via call
- Post-sale — thank for purchase or request review
- Events and invitations — personalized audio invitation
- Attendance confirmation — automatic call to confirm schedule
In each scenario, the flow is the same: record the audio, upload to Pragmaz, select contacts and schedule. Pragmaz handles cadence and generates a full report.
Advantages of making calls from WhatsApp Web
- No WhatsApp Desktop needed — works on any computer with Chrome
- Everything in one place — CRM, chatbot, broadcast and calls in the same extension
- Automatic calls — schedule hundreds of calls with one click
- Detailed reports — know who answered and for how long
- Smart cadence — random intervals protect your account from restrictions
- Cloned voice (optional) — generate AI audio using your own voice
Professional WhatsApp Web platform with Kanban CRM, Chatbot, bulk messaging, calls and more. Plans from R$120.99/month, no per-message cost. See plans and pricing →