WhatsApp Web Sender is a Chrome and Edge extension that sends personalized bulk WhatsApp messages from WhatsApp Web, based on a contact list imported from Excel or CSV. Over 200,000 installs show up on the Chrome Web Store, along with a 4.8/5 rating. The base plan costs nothing, with no time limit attached. There is no WhatsApp Business API to configure and no code to write.
The process takes three steps: you import your contacts from an Excel or CSV file, you write a message with placeholders such as first name or company, and the extension sends everything from WhatsApp Web without saving numbers one by one. Each recipient gets a message addressed to them, with an optional image, video or document attached.
The best part is the follow-up: a live panel tracks campaign progress while replies land in your regular chats.
No WhatsApp Business API to set up: that is what separates WhatsApp Web Sender from platforms such as WATI or AiSensy, which are built on Meta's official API and billed by subscription or per message, a common model among AI marketing platforms. Here everything runs in your browser, on your own account, including a standard WhatsApp Business account.
So who actually relies on it? The publisher lists sales follow-ups after trade shows, promotional campaigns and event invitations; the published testimonials even include a charity coordinating a network of twelve hospitals.
| Profile | What the extension saves them |
|---|---|
| Sales rep | Follow up with each prospect by name after a demo or event |
| Shop, e-commerce | Tell customers about a sale or restock in one go |
| Event organizer | Send invitations and schedule changes at once |
| Nonprofit | Keep members informed and run donation appeals |
Installation goes through the Chrome Web Store or Microsoft Edge Add-ons, under the name WA Bulk Message Sender, the publisher's official extension. Once pinned, its icon shows up directly inside WhatsApp Web. On pricing, the free-forever plan is the headline and no public price grid covers anything beyond it; wawebsender.com is the place to check current terms.
A word of caution before you launch anything big. The tool has no affiliation with WhatsApp Inc., and mass sends of identical texts can trip Meta's anti-spam filter. The publisher itself recommends wider sending intervals and a personal touch in every message, a simple timestamp does the trick. (Many regulars keep a dedicated number for campaigns, which lets the personal one sleep soundly.)
Yes, the publisher provides a free plan with no time limit: Excel contact import, personalized messages with attachments, sending intervals and result tracking are all included. No public price grid is shown for anything beyond that, so the official website remains the reference for current terms.
The risk is real with any unofficial tool: WhatsApp may restrict an account that sends too many identical messages too fast. To reduce it, set a wide sending interval, personalize every message and stick to contacts who agreed to hear from you.
It does, as long as the WhatsApp Business account is connected to WhatsApp Web. In that case the publisher advises working from opt-in contact lists and following the platform's business policy for notifications, which keeps campaigns on the right side of the rules.
According to its Chrome Web Store listing, the developer has disclosed that it will not collect or use your data, and the store reports a clean record with no violations. Your chats stay inside WhatsApp Web; the imported list only serves to prepare sends from your browser.
Verdict: Fifty follow-ups without pasting the same text fifty times: that is the time saved here. Freelancers, small shops and nonprofits already working on WhatsApp will get the most out of it week after week.
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