The 7 best mass email extensions and tools for Gmail in 2026
BCC sends one generic email to everyone. Platforms like Mailchimp make you upload a list, set up a domain and pay per contact. If you just want to send 50 or 300 personalized emails from your own Gmail account, a Chrome extension takes fewer steps.
We compared 7 extensions and add-ons that do this. Free limits and prices were checked on each tool's official page on November 5, 2026.
Short answer
- Pay once, no subscription: EmailMassa.
- Largest free volume: MailBrother (450 per day, with its signature in the footer).
- Advanced sales campaigns: GMass.
- Already work in Google Sheets: Mailmeteor or YAMM.
Disclosure: this blog belongs to EmailMassa. It's on the list, and for each tool we say where the others are better.
Quick comparison
| Tool | Type | Free | Paid from | Billing |
|---|---|---|---|---|
| EmailMassa | Chrome extension | 1 campaign/day (up to 30) | $2.99 / 30 days | One-time |
| Mailmeteor | Extension + Sheets add-on | 50 emails/day | $5.99 / month | Subscription |
| GMass | Chrome extension | 7-day trial, 50/day | $20 / month (annual) | Subscription |
| MergeMail | Chrome extension | 50 emails/day | $12 / month (annual) | Subscription |
| MailBrother | Chrome extension | 450/day on @gmail.com | $108 / year | Subscription |
| YAMM | Sheets add-on | 20 recipients/day | $3 to $6 / month (annual) | Subscription, varies by country |
| BetterMerge | Sheets add-on + web app | 50 emails/day | Lite (local price) | Subscription |
With every tool, Google's limit still applies: a personal @gmail.com account sends up to 500 emails per day (Gmail Help).
1. EmailMassa
Best for: People who send a few campaigns and don't want a monthly subscription.
- Type: Chrome extension, panel inside the Gmail compose window.
- Free: 1 campaign per day, up to 30 campaigns total.
- Paid: $2.99 for 30 days or $29 for 365 days, one-time, up to 500 emails/day.
- Does: imports Google Sheets, CSV or a pasted list; merge fields per column; open and click tracking; scheduling; follow-ups; templates; unsubscribe header. English, Portuguese and Turkish.
- Limitation: newer, fewer Chrome Web Store ratings. The free plan is for testing. Follow-ups go to all recipients of the campaign, with no filter for people who replied.
2. Mailmeteor
Best for: A steady free plan if you already work in Google Sheets.
- Type: Gmail extension plus Sheets, Docs and Excel add-ons.
- Free: 50 emails per day, 500 per month.
- Paid: Starter from $5.99 per user/month.
- Limitation: recurring subscription.
Mailmeteor pricing or EmailMassa vs Mailmeteor
3. GMass
Best for: Sales teams sending large campaigns with follow-up sequences.
- Type: Chrome extension.
- Free: no permanent free plan. 7-day trial with 50 emails per day.
- Paid: Standard $20/month billed annually ($249) or $29.95 billed monthly.
- Limitation: many features to learn; expensive if you send little.
GMass pricing or EmailMassa vs GMass
4. MergeMail
Best for: Simple mail merge with tracking, right in Gmail.
- Type: Chrome extension.
- Free: 50 emails per day.
- Paid: Pro $12/month billed yearly or $16 billed monthly.
- Limitation: recurring subscription.
5. MailBrother
Best for: The largest free volume, if you don't mind the tool's signature in your emails.
- Type: Chrome extension.
- Free: 450 emails/day on @gmail.com and 1,800 on Google Workspace, with “Sent with MailBrother” in the footer.
- Paid: Individual $108/year, removes the signature.
- Limitation: on the free plan your recipients see the signature.
6. YAMM (Yet Another Mail Merge)
Best for: People who build everything inside Google Sheets.
- Type: Google Sheets add-on.
- Free: 20 recipients per day.
- Paid: $6/month billed annually in the US ($72), $3/month in some other countries.
- Limitation: the smallest free plan on this list; works from the sheet, not from Gmail.
YAMM pricing or EmailMassa vs YAMM
7. BetterMerge
Best for: People who prefer a web app with an AI writing assistant.
- Type: Google Sheets add-on plus web app (not a Chrome extension).
- Free: 50 emails per day, no card.
- Paid: Lite plan, price shown in local currency.
- Limitation: you leave Gmail to build the campaign.
Pick one in a minute
| Your situation | Pick |
|---|---|
| 1 or 2 campaigns a month, no subscription | EmailMassa, $2.99 for 30 days when you need it |
| Send every day without paying | Mailmeteor or MergeMail (50/day), MailBrother (450/day with footer) |
| Sales team with 4 or 5 email sequences | GMass |
| Everything already lives in a spreadsheet | YAMM or Mailmeteor |
What applies to any tool
- Send to people who know you. Bought lists get spam reports, and it's your Gmail account that pays for it, not the extension.
- Test with 5 contacts first. An unfilled “Hi {{name}}” is the most common mistake.
- Add an unsubscribe option. People must be able to opt out with one click.
- Split big lists across days. 1,200 contacts on a @gmail.com account take 3 days.
FAQ
What is the best Chrome extension to send mass email from Gmail?
It depends on how you send. To pay once with no subscription: EmailMassa ($2.99 for 30 days). For the largest free volume: MailBrother (450 emails/day on @gmail.com, with its signature in the footer). For advanced sales campaigns: GMass. If you live in Google Sheets: Mailmeteor or YAMM.
Is there a free extension to send mass email in Gmail?
Yes. Mailmeteor, MergeMail and BetterMerge offer 50 emails per day for free. MailBrother allows 450 per day with a footer signature. YAMM allows 20 recipients per day. EmailMassa's free plan sends 1 campaign per day, up to 30 campaigns. GMass only has a 7-day trial.
How many emails can I send per day from Gmail with an extension?
A personal @gmail.com account can send up to 500 emails per day, with or without an extension. The limit comes from Google, and no extension raises it.
Is there a mass email extension without a monthly subscription?
Yes. EmailMassa charges a one-time payment: $2.99 for 30 days or $29 for 365 days, with no automatic renewal. The other tools on this list are subscriptions.
P.S.If you want the pay-once option, EmailMassa's free plan sends your first campaign today, straight from your Gmail.
Add EmailMassa to Chrome