API & MCP

WA Bulk Sender — Free WhatsApp message blaster (no number saving)

Send personalized WhatsApp Web messages to a list of numbers without saving contacts. Placeholders, media, delays. 100% local, free.

As of June 2026, WA Bulk Sender — Free WhatsApp message blaster (no number saving) has users in the Productivity category.

Usersno change0%
Ratingno change0%
— reviews
Reviewsno change0%
Version
1.0.0
Manifest V3

History

1 snapshots

Tracking since Jun 29, 2026.

Not enough history yet for this metric — the chart fills in as we collect more snapshots.
View as table
DateUsersRatingReviewsVersion
Jun 29, 20261.0.0
Now1.0.0

Permissions & access

Permissions
tabsstorage
Host access
https://web.whatsapp.com/*

Screenshots

WA Bulk Sender — Free WhatsApp message blaster (no number saving) screenshot 1WA Bulk Sender — Free WhatsApp message blaster (no number saving) screenshot 2

About

WA Bulk Sender lets you send one personalized message to a whole list of phone
numbers on WhatsApp Web — without saving any of them as contacts. Paste your
list (or load a .csv / .txt), write your message, set a comfortable sending
pace, and press Start. Everything runs locally in your browser.

100% FREE — every feature below is included. No quota, no license key, no
account, no sign-up, and no telemetry.

— WHAT IT DOES —

• Bulk send without saving contacts
  Paste numbers or load a .csv / .txt list. Each number is messaged directly,
  so your address book stays clean.

• Personalization placeholders
  Use {name} for the first field, {1} {2} {3}… for fields by position, and
  {number} for the recipient's number. Example: a line "447700900000, Bob, VIP"
  with message "Hi {name}, your tier is {2}" sends "Hi Bob, your tier is VIP".

• Optional media
  Attach one image, video, or document. Your message text becomes the caption.

• Smart pacing
  Set a randomized minimum/maximum delay between sends, plus a periodic cooldown
  (pause every N messages for X seconds). Randomized, human-like pacing reduces
  the chance WhatsApp flags the account.

• Live progress that survives popup close
  Watch sent / failed / total counts, a progress bar, and a running log. The
  send loop runs in the page, not the popup — so you can close the popup, reopen
  it, and the progress is still there. Stop any time.

— HOW TO USE —

1. Open https://web.whatsapp.com and log in (scan the QR code).
2. Wait for your chats to finish loading.
3. Click the WA Bulk Sender icon.
4. Paste your recipients (one per line, international format, no "+"): 
   The first comma-separated value is the phone number; the rest are fields for
   your placeholders.
5. Write your message, optionally attach media, and set your pacing.
6. Press "Start sending" and watch the progress.

— PRIVACY —

• 100% local. Your numbers, message, and media never leave your browser. There
  is no server, no analytics, and no tracking.
• The only site the extension touches is web.whatsapp.com.
• Permissions: "storage" (to keep send progress so the popup can reopen) and
  "tabs" (to find your active WhatsApp Web tab). Nothing else.

— RESPONSIBLE USE (please read) —

Sending unsolicited bulk messages can violate WhatsApp's Terms of Service and may
get your number rate-limited or banned, regardless of pacing. Only message people
who expect to hear from you. This tool includes no list-buying, no scraping, and
no number harvesting — it simply sends your message to the list you provide. You
are responsible for how you use it.

— NOTES —

• Works on WhatsApp Web in Chrome. Your WhatsApp tab must stay open while sending
  (closing it stops the run; progress so far is kept).
• Built on the open-source WPPConnect wa-js library. A major WhatsApp Web update
  may temporarily affect it until the library updates.

A free plugin provided by Extension.software. Check out our other free plugins at
https://extension.software/apps

Technical

Version
1.0.0
Manifest
V3
Size
131KiB
Min Chrome
88
Languages
1
Featured
No

Metadata

ID
epodmhjjelbioeofdaabagfkjomhjede
Developer ID
u5a614c6ac1ac73fe3847440e6cb97e03
Developer Email
[email protected]
Created
Jun 28, 2026
Last Updated (Store)
Jun 28, 2026
Last Scraped
Jun 29, 2026
Website
extension.software

Data sourced from the Chrome Web Store · last verified Jun 29, 2026.