Mailroom / vs Mailmeteor
Mailroom vs Mailmeteor:
the free, open-source alternative.
Mailmeteor is a sleek, well-designed mail-merge tool built around Google Sheets. It's the friendliest of the paid options — clean UI, fast setup, generous free tier at 50/day. Mailroom matches its core feature set, doubles the free quota to 500/day, removes the monthly cost, and adds open-source code you can audit or self-host.
TL;DR
Pick Mailroom if
- 500/day free vs Mailmeteor's 50/day (1,500/month cap)
- Open source (MIT), self-hostable
- Standalone web app — no Google Sheets required
- No premium tier to upsell
- Your data lives in your own Supabase project
Pick Mailmeteor if
- Polished onboarding and UX, especially for non-technical users
- Google Sheets two-way sync
- Bigger user base = more YouTube tutorials and community help
- Workspace marketplace distribution
Feature-by-feature comparison
Mailmeteor is the Google Sheets / Gmail mail-merge tool with a focus on simplicity, priced at $10–$25/mo per user (or $99/yr), with a free tier of 50 emails/day, 1,500/month. Mailmeteor runs as Google Workspace Add-on (Sheets) + Gmail integration.
| Mailroom | Mailmeteor | |
|---|---|---|
| Pricing | $0 | $10–$25/mo |
| Free tier | 500/day forever | 50/day, 1,500/mo |
| Schedule sends | Yes (free) | Yes |
| Open tracking | Yes (free) | Yes |
| Bounce detection | Auto (free) | Auto |
| Mail merge tags | Yes | Yes |
| Sends from your Gmail | Yes (via API) | Yes (via Add-on) |
| Google Sheets integration | No (CSV) | Yes (native) |
| Standalone web app | Yes | Limited |
| Open source | Yes (MIT) | No |
| Self-host | Yes | No |
| Templates | Yes | Yes |
| Markdown formatting | Yes | No (HTML editor) |
FAQ: switching from Mailmeteor
Mailmeteor seems easier — is Mailroom harder to use?
Mailmeteor has been polishing its UX since 2018 and has the edge on first-touch onboarding. Mailroom's interface is also single-screen and CSV-based, but with less hand-holding. If you've ever uploaded a spreadsheet to a web app, Mailroom will feel obvious.
Does Mailroom work inside Gmail like Mailmeteor does?
No — Mailroom is a separate web app at bulk-gmail.vercel.app. You compose your campaign there, not in the Gmail compose window. The trade-off is you don't need to install a browser extension or Google Workspace add-on.
Will switching from Mailmeteor break my unsubscribe list?
Mailmeteor's suppression list is locked inside their platform. Export your unsubscribed contacts as a CSV, then add them to Mailroom by uploading and marking them as unsubscribed — or just keep your existing list active while you migrate gradually.
Save the $10 and just send the email.
Connect Gmail, upload your CSV, hit send. Free forever.
Start with Mailroom