Keeper vs Fastmail: Which Should You Choose in 2026?
Choosing between Keeper and Fastmail comes down to understanding what each tool does best. This comparison breaks down the key differences so you can make an informed decision based on your specific needs, not marketing claims.
Short on time? Here's the quick answer
We've tested both tools. Here's who should pick what:
Keeper
Password manager with enterprise security
Best for you if:
- • You want the higher-rated option (8.0/10 vs 7.3/10)
- • You need password managers features specifically
- • Keeper is an enterprise password manager with zero-knowledge security
- • It stores passwords, secrets, and files with end-to-end encryption
Fastmail
Fast, private, and reliable email and calendar hosting for individuals and businesses.
Best for you if:
- • You need email clients features specifically
- • Private and secure email and calendar service with no ads or data mining.
- • Boosts productivity with features like powerful search, scheduled send, and masked email.
| At a Glance |  Keeper |  Fastmail |
|---|---|---|
Price | Paid | Paid |
Best For | Password Managers | Email Clients |
Rating | 80/100 | 73/100 |
| Feature | Keeper | Fastmail |
|---|---|---|
| Pricing Model | Paid | Paid |
| Editorial Score | 80 | 73 |
| Community Rating | No ratings yet | No ratings yet |
| Total Reviews | 0 | 0 |
| Community Upvotes | 0 | 0 |
| Categories | Password ManagersEncryption | Email ClientsCalendar |
Understanding the Differences
Both Keeper and Fastmail solve similar problems, but they approach them differently.Keeper positions itself as "password manager with enterprise security" while Fastmailfocuses on "fast, private, and reliable email and calendar hosting for individuals and businesses.". These differences matter depending on what you're trying to accomplish.
When to Choose Keeper
Keeper makes sense if you're looking for a comprehensive paid solution. With a score of 80/100, it's our top pick in this comparison.
When to Choose Fastmail
Fastmail is worth considering if you need a professional-grade tool.
Who Should Use What?
Bootstrapped or small team?
Neither is free, but both have their value. Test them both and see which clicks.
We'd pick: Fastmail
Growing fast?
Your team doubled last quarter and you need tools that won't break when you add 50 more people. Keeper handles scale better in our testing.
We'd pick: Keeper
Enterprise with complex needs?
You need SSO, compliance certifications, and a support team that picks up the phone. Keeper is built for organizations like yours.
We'd pick: Keeper
Still not sure? Answer these 3 questions
How much can you spend?
Both are paid tools. If money isn't the issue, go with Keeper—it scored higher.
Do you care what other users think?
Both have similar review counts. Read a few before you commit.
Expert opinion or crowd wisdom?
Our team rated Keeper higher (80/100). But the community has upvoted Fastmail more (0 votes). Pick your source of truth.
Key Takeaways
What Keeper Does Better
- Higher overall score (80/100)
- Our recommendation for most use cases
Consider Fastmail If
- Its specific features better match your workflow
- You prefer its interface or design approach
The Bottom Line
If we had to pick one, we'd go with Keeper (80/100). But the honest answer is that "better" depends on your situation. Keeper scores higher in our analysis, but Fastmail might be the right choice if its specific strengths align with what you need most. Take advantage of free trials to test both before committing.
Frequently Asked Questions
Is Keeper or Fastmail better?
Based on our analysis, Keeper scores higher with 80/100. Keeper ispaid while Fastmail is paid. The best choice depends on your specific needs and budget. We recommend testing both with free trials if available.
Can I switch from Keeper to Fastmail easily?
Migration difficulty varies. Check if both tools support data export/import in compatible formats. Some tools offer migration assistance or have integration partners who can help with the transition.
Do Keeper and Fastmail offer free trials?
Most software in this category offers free trials or free tiers. Keeper is paid with potential trial.Fastmail is paid with potential trial. Visit their websites for current trial offers.