Instead of Outlook.com, try one of these 9.
Every alternative is lined up against Outlook.com on what people actually switch for: price, open source, self-hosting, offline use and platforms. Outlook.com sits in the first row, so you can see what you give up.
Alternative
Price
Open source
Self-host
Offline
Platforms
Likes
Outlook.comWhat you have now
Microsoft's free webmail and calendar service.
PriceFreemium
Open sourceNo
Self-hostNo
OfflineNo
Platforms
Web
Gmail#1
The default free inbox, with smart categories and search.
PriceFreemium
workspace from $7
Open sourceNo
Self-hostNo
OfflineNo
Platforms
Web · iOS · Android
LikesVisit ↗
Encrypted email and calendar with a free tier.
PriceFreemium
pro €3/mo
Open sourceYes
Self-hostNo
OfflineNo
Platforms
Web · iOS · Android
LikesVisit ↗
Fastmail#3
Fast, private email with your own domain and calendar.
PricePaid
from $5/mo
Open sourceNo
Self-hostNo
OfflineNo
Platforms
Web · iOS · Android
LikesVisit ↗
Disroot#4
Free privacy-focused platform offering email and cloud services.
PriceFree
Open sourceYes
Self-hostNo
OfflineNo
Platforms
Web
LikesVisit ↗
mailbox.org#5
Private German email with cloud storage and office tools.
PricePaid
Open sourceNo
Self-hostNo
OfflineNo
Platforms
Web
LikesVisit ↗
GMX#6
Free webmail with storage and an organizer.
PriceFree
Open sourceNo
Self-hostNo
OfflinePartial
Platforms
Web · Android · iOS
LikesVisit ↗
Mailfence#7
Encrypted email suite with calendar and document tools.
PriceFreemium
Open sourceNo
Self-hostNo
OfflinePartial
Platforms
Web · Android · iOS
LikesVisit ↗
Posteo#8
Low-cost German mailbox focused on privacy and sustainability.
PricePaid
Open sourceYes
Self-hostNo
OfflineNo
Platforms
Web
LikesVisit ↗
Infomaniak kMail#9
Swiss hosted mail with collaboration tools and ethical hosting.
PriceFreemium
Open sourceYes
Self-hostNo
OfflinePartial
Platforms
Web · iOS · Android
LikesVisit ↗
How to read this. “Yes” means fully supported by the maker. “Partial” means it works with caveats. Likes reflect community popularity; vendors can’t pay for them or for placement. How we compare.
Outlook.com alternatives at a glance
Outlook.com is a freemium email app. We compared 9 alternatives: 4 are open source, 2 are completely free, 0 can be self-hosted and 0 work fully offline. The most popular is Gmail, with 3.8k likes.