Top Chrome Extensions for Mail Merge Gmail
Mail Merge Gmail Chrome extensions — 9K monthly searches · Rankings shifted 44× in 7 days · Top 3 locked — dominated by incumbents
What Developers Can Learn
Intelligence derived from tracked keywords across all Mail Merge Gmail sub-keywords
Most Congested
With a concentration ratio of 0.84, this market is dominated by GMass with 400K users and a 4.8 rating, making it extremely difficult for new entrants to compete without significant differentiation.
Possible Openings
Adjacent keywords like 'Email Tracking Gmail' (14.8K searches) and 'Gmail Email Tracker' (14.3K searches) show healthy volume with potentially lower direct competition from established players.
Positioning Patterns
Top extensions consistently feature 'mail merge' in naming.
The top 3 average a 4.1 rating, with leaders like GMass and Streak achieving 4.8 stars—users expect polished, reliable functionality.
Top Extensions Leaderboard
7-day ranking snapshot and appearances in Top 10
| # | Extension | Users | Rating | Appearances | Category | Momentum |
|---|---|---|---|---|---|---|
| 1 |  Mail Merge for Gmail | 10,000+ | ⭐ 2.7 | 7/7d | Gmail | — stable |
| 2 |  GMass: Powerful mail merge for Gmail | 400,000+ | ⭐ 4.8 | 7/7d | Gmail | — stable |
| 3 |  Streak Mail Merge for Gmail | 10,000+ | ⭐ 4.8 | 7/7d | Gmail | — stable |
| 4 |  MergeMail | 30,000+ | ⭐ 4.9 | 7/7d | Gmail | — stable |
| 5 |  Salesforza Gmail Mail Merge & CRM on GSheets | 801 | ⭐ 4.6 | 7/7d | Gmail | — stable |
| 6 |  MassMerge: Latest mail merge for Gmail | 345 | ⭐ 4.6 | 7/7d | Gmail | — stable |
| 7 |  Gmail AI Email Assistant - Mailmeteor | 50,000+ | ⭐ 4.7 | 7/7d | Gmail | ↓ dropping |
| 8 |  FullMail: Smart Mail Merge Inside Gmail | 19 | ⭐ 0 | 7/7d | Gmail | ↑ rising |
| 9 |  Inbox Enhance - mail merge, mass email, email tracking and notes for Gmail | 88 | ⭐ 3.5 | 7/7d | Gmail | ↑ rising |
| 10 |  Mail Merge for Gmail Aeroleads | 14 | ⭐ 1 | 7/7d | Gmail | ↑ rising |
Mail Merge for Gmail
10,000+ · ⭐ 2.7 · 7/7d
GMass: Powerful mail merge for Gmail
400,000+ · ⭐ 4.8 · 7/7d
Streak Mail Merge for Gmail
10,000+ · ⭐ 4.8 · 7/7d
MergeMail
30,000+ · ⭐ 4.9 · 7/7d
Salesforza Gmail Mail Merge & CRM on GSheets
801 · ⭐ 4.6 · 7/7d
MassMerge: Latest mail merge for Gmail
345 · ⭐ 4.6 · 7/7d
Gmail AI Email Assistant - Mailmeteor
50,000+ · ⭐ 4.7 · 7/7d
FullMail: Smart Mail Merge Inside Gmail
19 · ⭐ 0 · 7/7d
Inbox Enhance - mail merge, mass email, email tracking and notes for Gmail
88 · ⭐ 3.5 · 7/7d
Mail Merge for Gmail Aeroleads
14 · ⭐ 1 · 7/7d
Ranking Volatility - Top 10 Ranks
7-day Top 10 movement snapshot (2026-03-31 to 2026-04-06)
✦ 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.
Is your extension visible
in Mail Merge Gmail extension market?
Track your extension's ranking for any Mail Merge Gmail keyword, monitor weekly changes, and find the exact gaps between you and the top 10.