Hi! I'd like to suggest a Chrome extension : WhatsApp Bulk Sender.

[iiIrene-wd]

Hi! I'd like to suggest a Chrome extension : WhatsApp Bulk Sender.

It's a browser-based tool that helps users send bulk WhatsApp messages and manage customer contacts efficiently — commonly used by outreach and marketing teams. It works fully in-browser, requires no login, and is free to use. Core features are available at no cost and it does not collect user data.

While it's not open source, I believe it could be useful to developers building business-facing browser tools or looking into WhatsApp-based automation.

Link: [https://wadesk.io/en/whatsapp-group-bulk-sender-extension]
I’m sharing this page specifically because it includes a tutorial video, usage guide, and a list of other free tools — it may be more helpful to your readers than just a Web Store link.

Thanks for considering it! Happy to revise or provide more detail if needed.

If you need:
Name: WhatsApp Bulk Sender
Website: https://wadesk.io/en/whatsapp-group-bulk-sender-extension
Description: A free-to-use Chrome extension for bulk-sending WhatsApp messages and managing customer contacts efficiently at scale. Ideal for marketing and outreach teams.
Official Website：https://wadesk.io/en
Chrome Web Store: https://chromewebstore.google.com/detail/free-whatsapp-bulk-sender/amokpeafejimkmcjjhbehganpgidcbif
License: Commercial – not open source

This extension may be useful for users looking for WhatsApp automation and lead generation solutions.