Top Chrome Extensions for Gmail Mass Email
Gmail Mass Email Chrome extensions — 340 monthly searches · Rankings shifted 0× in 7 days · Rankings actively shifting
What Developers Can Learn
Intelligence derived from tracked keywords across all Gmail Mass Email sub-keywords
Most Congested
The mail merge and mass email sending space inside Gmail is heavily concentrated around GMass, which commands 300,000 users — more than all other ranked extensions combined.
With moderate user concentration at 56.6%, new entrants attempting a general-purpose mail merge tool face an uphill battle against GMass's brand recognition and deeply embedded Google Sheets integration.
Possible Openings
Adjacent keywords reveal substantial untapped demand in the broader Gmail productivity space.
Email Tracking Gmail and Gmail Email Tracker each draw over 14,000 monthly searches, while Mail Merge Gmail pulls 8,800 — all dwarfing the 340 searches for 'gmail mass email.' Developers could bridge mass emailing with email tracking or template management (Gmail Templates at 6,500 searches) to capture a much larger audience.
Positioning Patterns
Extensions in this space consistently lead with the Gmail brand name and pair it with action-oriented terms like 'mail merge,' 'mass email,' or 'email campaigns.' Top performers such as GMass and Mailmeteor use concise branded names followed by a descriptive subtitle, while newer entrants like EmailMassa and Gumbamail rely on compound descriptors that stack multiple keywords into a single listing title.
Top Extensions Leaderboard
7-day ranking snapshot and appearances in Top 10
| # | Extension | Users | Rating | Appearances | Category | Momentum |
|---|---|---|---|---|---|---|
| 1 |  GMass: Powerful mail merge for Gmail | 300,000+ | ⭐ 4.79 | 7/7d | Gmail | — stable |
| 2 |  Mail Merge for Gmail & Mass Email Sender - EmailMassa | 62 | ⭐ 5 | 7/7d | Gmail | — stable |
| 3 |  Gmail AI Email Assistant - Mailmeteor | 60,000+ | ⭐ 4.8 | 7/7d | Gmail | — stable |
| 4 |  Mass Email Sender | 455 | ⭐ 3.8 | 7/7d | Gmail | ↓ dropping |
| 5 |  Bulk Email Scheduler for Gmail | — | ⭐ 4.5 | 7/7d | Gmail | ↑ rising |
| 6 |  Email Marketing Campaigns in Gmail: Gumbamail | 6,000+ | ⭐ 3.62 | 7/7d | Gmail | ↑ rising |
| 7 |  Gmail Mass Unsubscribe & Delete Emails - InboxPurge | 30,000+ | ⭐ 4.67 | 7/7d | Gmail | ↓ dropping |
| 8 |  MassMerge: Latest mail merge for Gmail | 314 | ⭐ 4.67 | 7/7d | Gmail | ↑ rising |
| 9 |  MailKing: Email Campaigns in Gmail by cloudHQ | 10,000+ | ⭐ 4.6 | 7/7d | Gmail | ↓ dropping |
| 10 |  Send Mass Mail + HTML inserter for Gmail | 10,000+ | ⭐ 4.7 | 7/7d | Gmail | — stable |
GMass: Powerful mail merge for Gmail
300,000+ · ⭐ 4.79 · 7/7d
Mail Merge for Gmail & Mass Email Sender - EmailMassa
62 · ⭐ 5 · 7/7d
Gmail AI Email Assistant - Mailmeteor
60,000+ · ⭐ 4.8 · 7/7d
Mass Email Sender
455 · ⭐ 3.8 · 7/7d
Bulk Email Scheduler for Gmail
— · ⭐ 4.5 · 7/7d
Email Marketing Campaigns in Gmail: Gumbamail
6,000+ · ⭐ 3.62 · 7/7d
Gmail Mass Unsubscribe & Delete Emails - InboxPurge
30,000+ · ⭐ 4.67 · 7/7d
MassMerge: Latest mail merge for Gmail
314 · ⭐ 4.67 · 7/7d
MailKing: Email Campaigns in Gmail by cloudHQ
10,000+ · ⭐ 4.6 · 7/7d
Send Mass Mail + HTML inserter for Gmail
10,000+ · ⭐ 4.7 · 7/7d
Ranking Volatility - Top 10 Ranks
7-day Top 10 movement snapshot (2026-07-14 to 2026-07-20)
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.