WhatsApp Sender
A free Chrome and Edge extension for sending bulk WhatsApp messages from WhatsApp Web or WhatsApp Business Web. Import Excel or CSV contacts, personalize messages with custom placeholders, set random intervals, and add unsubscribe options for safer outreach.
Chrome Web Store Signals
A WhatsApp Sender Page With Verifiable Product Context
These public listing signals help searchers confirm that SMDeck is a real WhatsApp Web sender extension. Checked on August 31, 2026.
Free WhatsApp Sender / Chrome Extension
Install A Free WhatsApp Sender Extension
SMDeck WhatsApp Sender is free to install from the Chrome Web Store. It runs in Chrome and Microsoft Edge, and supports both WhatsApp Web and WhatsApp Business Web.
Download Free ExtensionFree To Install
Start with the free WhatsApp Sender extension from the Chrome Web Store.
Chrome And Edge
Use it in Google Chrome or Microsoft Edge without installing a desktop app.
WhatsApp + Business
Send from WhatsApp Web or WhatsApp Business Web in the browser.
Excel / CSV Import
Import Contacts And Personalize Every Message
Upload an Excel or CSV contact list, map your columns, and turn every supported or custom field into a message placeholder.
Use Columns As Placeholders
Each column can be inserted into your WhatsApp message template.
| phone | name | company | tag | coupon_code |
|---|---|---|---|---|
| +12025550148 | Alex | Acme | VIP | SAVE20 |
Personalized Message Variables
Turn Excel Fields Into WhatsApp Placeholders
When you upload an Excel or CSV file, every column header can become a reusable placeholder in your message template.
Use standard fields like phone, name, company, and tag, or add custom fields such as coupon_code, order_id, city, plan, and renewal_date for highly personalized outreach.
Excel custom fields
{{name}}{{company}}{{coupon_code}}{{renewal_date}}Message preview
Anti-Ban / Safe Sending
Send In A Safer, More Natural Rhythm
SMDeck helps reduce bulk sending risk with controlled pacing, random delays, automatic cooldowns, retry rules, and easy opt-out options for responsible WhatsApp outreach.
Random Send Intervals
Set random time gaps between messages so campaigns do not fire at a fixed, robotic pace.
Batch Grouping
Split large contact lists into smaller batches and manage each sending round more carefully.
Automatic Long Cooldowns
After sending for a period of time, pause automatically for a longer delay before continuing.
Failed Send Retry
Track failed sends and retry them with controlled timing instead of repeatedly pushing the same contact.
Account Health Reminders
Get reminders when your sending behavior needs a slower pace or a longer break.
One-Click Unsubscribe Button
Add an unsubscribe button to your message so contacts can opt out and future sends can respect that choice.
Sending Limits & Account Health FAQ
Plan Bulk Sends Without Pushing Your Account Too Hard
There is no single daily sending number that is safe for every WhatsApp account. SMDeck gives you pacing tools and clear reminders so you can start slowly, watch quality signals, and scale responsibly.
How many WhatsApp messages can I send per day?
It depends on account age, recipient engagement, opt-in quality, failed sends, blocks, and reports. For a new or inactive account, start with small batches instead of trying to send a full list on day one.
How can I reduce bulk sending risk?
Use opt-in contacts, personalize messages with Excel fields, enable random send intervals, add long cooldowns, remove failed numbers, and include a one-click unsubscribe option.
How should I warm up a new account?
Begin with manual-looking activity and smaller campaigns. Send to known contacts first, keep reply rates healthy, avoid repetitive link-heavy messages, and increase volume gradually only when results look stable.
Why split contacts into batches?
Batching makes sending behavior more natural, creates space for cooldowns, and helps you isolate problems before a whole list is affected. A practical starting point is 20-50 contacts per batch with breaks between batches.
What account health signals should I watch?
Pay attention to failed sends, low replies, repeated blocks, spam reports, and contacts asking to stop. When these signals rise, slow down, pause longer, and clean your list before sending again.
Do official Meta messaging limits matter?
Yes. Meta documents messaging limits and quality signals for WhatsApp Business Platform accounts, and the same idea applies to any outreach workflow: poor quality or unwanted messages can restrict reach.
WhatsApp Sender Use Cases
Reach The Right Contacts For Every Business Moment
From promotions to reminders, SMDeck helps teams import segmented lists, personalize each message, pace delivery, and keep replies organized inside WhatsApp Web or WhatsApp Business Web.
E-commerce Promotions
Send product launches, coupon codes, flash sales, and abandoned-cart nudges to buyer segments imported from Excel.
Order Updates
Notify customers about payment status, shipping progress, delivery windows, and post-purchase next steps.
Appointment Reminders
Reduce no-shows for clinics, salons, consultants, tutors, and service teams with personalized time and location fields.
School Announcements
Reach parents and students with class updates, payment reminders, event notices, and urgent schedule changes.
Event Invitations
Invite guests, confirm RSVPs, send venue details, and follow up with segmented lists before and after the event.
Real Estate Follow-Ups
Share listings, viewing times, price updates, and buyer follow-ups with leads grouped by location or property interest.
Restaurant Loyalty
Promote daily menus, member coupons, reservation reminders, birthday offers, and off-peak table campaigns.
Customer Service Follow-Ups
Check satisfaction, send onboarding tips, remind customers about next actions, and reconnect with inactive users.
Feature Comparison
SMDeck Vs Other WhatsApp Sending Options
Choose the right WhatsApp workflow by comparing browser-based bulk sending, built-in WhatsApp tools, official API setup, and regular sender plugins.
| Feature | SMDeck WhatsApp Sender | WhatsApp Broadcast List | WhatsApp Business App | WhatsApp API | Regular Bulk Sender Plugin |
|---|---|---|---|---|---|
| Best for | Small teams that need Excel import, personalized outreach, pacing controls, and browser workflow. | Simple announcements to existing contacts. | Small businesses managing chats, profile, labels, and catalog. | Developers and larger teams building backend messaging systems. | Basic one-off bulk sending when advanced controls are not required. |
| Setup | Free Chrome Web Store install for Chrome or Edge. | Built into WhatsApp. | Install WhatsApp Business App. | Requires Business Platform setup and technical integration. | Varies by extension. |
| WhatsApp Web support | Works with WhatsApp Web and WhatsApp Business Web. | Mainly managed inside WhatsApp apps. | Supports WhatsApp Business workflows. | API-based, not a browser sending workflow. | Usually WhatsApp Web only. |
| Excel / CSV import | Import contact lists with phone, name, company, tag, and custom fields. | No spreadsheet import workflow. | Contact management is manual or app-based. | Possible through custom systems. | Often supported, quality varies. |
| Personalized variables | Use any Excel custom field as a placeholder like {{name}} or {{coupon_code}}. | Not designed for custom placeholders. | Limited template-style personalization. | Strong personalization with developer setup. | May support simple variables. |
| Safe sending controls | Random intervals, batch grouping, long cooldowns, failed retry, and account health reminders. | Limited pacing controls. | Good for normal chat, limited bulk pacing. | Advanced controls possible with engineering work. | Depends on the plugin. |
| Opt-out support | One-click unsubscribe button for cleaner future campaigns. | Manual list maintenance. | Manual labels and contact handling. | Can be automated by developers. | Often basic or unavailable. |
| Extra workflow tools | Includes import, variables, safe pacing, unsubscribe support, and result review in one browser workflow. | No import, variable, or pacing workflow. | Business profile, labels, and catalog tools. | Powerful automation if built into a full system. | Usually focused on sending only. |
WhatsApp Sender FAQ
Answers To Common WhatsApp Sender Questions
Quick answers for people comparing WhatsApp sender tools, bulk messaging options, unsaved-number sending, and free Chrome extensions.
What is a WhatsApp sender?
A WhatsApp sender is a tool that helps send WhatsApp messages to contact lists more efficiently, usually with contact import, message templates, personalization fields, and sending controls.
How to send WhatsApp messages to multiple contacts?
Install SMDeck, upload an Excel or CSV list, write your message template, insert placeholders like {{name}}, set sending intervals, and start the campaign from WhatsApp Web.
Can I send to unsaved numbers?
Yes. Import phone numbers with country codes from Excel or CSV and send without manually saving every contact first. Use this for contacts who have opted in or expect your message.
Is WhatsApp sender safe?
No bulk sender can guarantee zero risk. SMDeck helps reduce risk with random intervals, batch grouping, long cooldowns, failed retry, account health reminders, and unsubscribe support.
Is there a free WhatsApp sender extension?
Yes. SMDeck WhatsApp Sender is free to install from the Chrome Web Store, works in Chrome and Microsoft Edge, and supports WhatsApp Web plus WhatsApp Business Web.