Top Chrome Extensions for Mail Merge Gmail
Mail Merge Gmail Chrome extensions — 9K monthly searches · Rankings shifted 61× in 7 days · Top 3 partially locked by Mail Merge for Gmail - Mailmeteor, GMass: Powerful mail merge for Gmail
What Developers Can Learn
Intelligence derived from tracked keywords across all Mail Merge Gmail sub-keywords
Most Congested
High competition: GMass dominates with 400K users at 4.8 stars, while Mailmeteor holds 50K users also at 4.8.
A third-place extension has 10K users but only 2.7 rating, showing quality gaps can be exploited.
Average top-5 rating is 4.4—enter only with a polished, differentiated product.
Possible Openings
Adjacent keywords like Email Tracking Gmail (14.8K searches) and Gmail Dark Mode (11.3K searches) offer lower competition.
These leverage the Gmail ecosystem without directly challenging established mail merge players.
Positioning Patterns
Top extensions consistently use 'Mail Merge for Gmail' in naming.
GMass leads through scale and reputation (4.8 rating), while Mailmeteor competes on simplicity.
Ratings above 4.5 appear essential for visibility—lower-rated alternatives struggle despite lower competition.
Top Extensions Leaderboard
7-day ranking snapshot and appearances in Top 10
| # | Extension | Users | Rating | Appearances | Category | Momentum |
|---|---|---|---|---|---|---|
| 1 |  Mail Merge for Gmail - Mailmeteor | 50,000+ | ⭐ 4.8 | 7/7d | Gmail | ↑ rising |
| 2 |  Mail Merge for Gmail | 10,000+ | ⭐ 2.7 | 7/7d | Gmail | ↓ dropping |
| 3 |  GMass: Powerful mail merge for Gmail | 400,000+ | ⭐ 4.8 | 7/7d | Gmail | ↑ rising |
| 4 |  Mail Merge for Gmail & Mass Email Sender - EmailMassa | 94 | ⭐ 5 | 7/7d | Gmail | — stable |
| 5 |  Streak Mail Merge for Gmail | 10,000+ | ⭐ 4.8 | 7/7d | Gmail | ↑ rising |
| 6 |  MassMerge: Latest mail merge for Gmail | 5,000+ | ⭐ 4.6 | 7/7d | Gmail | ↑ rising |
| 7 |  MergeMail | 30,000+ | ⭐ 4.9 | 7/7d | Gmail | ↑ rising |
| 8 |  Salesforza Gmail Mail Merge & CRM on GSheets | 795 | ⭐ 4.6 | 7/7d | Gmail | ↑ rising |
| 9 |  EZMailer: Mail Merge for Gmail & Bulk Email Sender | 33 | ⭐ 5 | 7/7d | Gmail | ↑ rising |
| 10 |  FullMail: Smart Mail Merge Inside Gmail | 17 | ⭐ 0 | 6/7d | Gmail | — stable |
Mail Merge for Gmail - Mailmeteor
50,000+ · ⭐ 4.8 · 7/7d
Mail Merge for Gmail
10,000+ · ⭐ 2.7 · 7/7d
GMass: Powerful mail merge for Gmail
400,000+ · ⭐ 4.8 · 7/7d
Mail Merge for Gmail & Mass Email Sender - EmailMassa
94 · ⭐ 5 · 7/7d
Streak Mail Merge for Gmail
10,000+ · ⭐ 4.8 · 7/7d
MassMerge: Latest mail merge for Gmail
5,000+ · ⭐ 4.6 · 7/7d
MergeMail
30,000+ · ⭐ 4.9 · 7/7d
Salesforza Gmail Mail Merge & CRM on GSheets
795 · ⭐ 4.6 · 7/7d
EZMailer: Mail Merge for Gmail & Bulk Email Sender
33 · ⭐ 5 · 7/7d
FullMail: Smart Mail Merge Inside Gmail
17 · ⭐ 0 · 6/7d
Ranking Volatility - Top 10 Ranks
7-day Top 10 movement snapshot (2026-07-14 to 2026-07-20)
✦ Entered Top 10 This Week
↓ Dropped Out of Top 10
Data Methodology
- Data source:
- Chrome Web Store search results
- Update frequency:
- Weekly
- Monthly Search Demand:
- Estimated demand indicator sourced from third-party keyword data. Not CWS-internal figures.