Last checked October 15, 2026
Best Free Alternatives to Gmail (2026)
Gmail is a browser inbox with search, labels, and apps on your phone. Consumer Gmail is free and shares a Google Account storage pool. The paid step up is Google Workspace, which adds a custom domain and admin controls. A desktop client or a mail server you run does not also replace Drive, Meet, or Docs.
What Gmail costs
Consumer Gmail is free and shares the Google Account pool of up to 15 GB across Gmail, Drive, and Photos. Workspace Business Starter is $7 USD per user per month on the annual plan, or $8.40 USD on the flexible monthly plan.
Google's help center lists Business Standard at $14 USD per user per month annually ($16.80 flexible) and Business Plus at $22 USD ($26.40 flexible). Business Starter includes 30 GB of pooled storage per user. Those are the standard USD rates on the help page, not a promotional checkout price.
Ranked by Drop-in score
How we rank#1 is the highest-scoring alternative that is not sponsored. A featured listing, when one is sold, is labeled and sits after #1.
- #1 · Best drop-inOpen source
mailcow
A Docker mail server with SOGo webmail and Rspamd.
Last checked October 15, 2026 · GPL-3.0
WebSelf-hostLinux - #2Open source
Thunderbird
A desktop and Android mail client under MPL-2.0.
Last checked October 15, 2026 · MPL-2.0
MacWindowsLinuxAndroid - #3Open source
Roundcube
Browser webmail for an IMAP server you already have.
Last checked October 15, 2026 · GPL-3.0-or-later, with a plugin and skin exception
WebSelf-host - #4Open source
SnappyMail
A small AGPL webmail client for IMAP.
Last checked October 15, 2026 · AGPL-3.0
WebSelf-host
Feature by feature
Full is the whole job. Partial is a real version with a gap. Missing means it does not do this. Not checked counts as zero in the score.
Scroll sideways to compare every alternative.
| Feature | mailcow#1 · 69 | Thunderbird#2 · 63 | Roundcube#3 · 55 | SnappyMail#4 · 46 |
|---|---|---|---|---|
| Browser inboxWeight 10 | FullSOGo is the bundled browser client for mail, contacts, and calendars. | Missing | Full | Full |
| Mobile appWeight 8 | MissingNo first-party phone app. Phones use IMAP or ActiveSync against the server. | FullThunderbird for Android is an official app. An official iOS app is not listed on the mobile page checked here. | PartialUsable in a mobile browser. There is no Roundcube phone app. | PartialMobile browser, not a native app. |
| Mailbox searchWeight 8 | PartialDovecot's Flatcurve full-text search is part of the stack. It is not Gmail's search box. | Full | PartialSearch depends on the IMAP server behind it. | PartialIMAP search, limited by the server. |
| Folders, labels, and filtersWeight 7 | PartialIMAP folders, plus per-user rules that can tag a subject or file into a folder. Not Gmail labels. | FullFolders, mail filters, and tags. Gmail labels are a server-side concept you only see if the account exposes them. | FullFolders and filters in the webmail client. | PartialFolders are there. It is a thinner client than Roundcube for filters and labels. |
| Spam filteringWeight 6 | FullRspamd, with learning when mail is moved into or out of Junk. | PartialJunk controls in the client. The serious filter still belongs to the mail host. | MissingSpam filtering is the mail server's job. | Missing |
| ContactsWeight 4 | FullSOGo address books, including CardDAV. | Full | Full | Partial |
| Mail hosting on your domainWeight 10 | FullYou host the mailboxes for your own domain. | MissingYou can add an account on your domain. Thunderbird does not receive the mail. | Missing | Missing |
| Desktop appWeight 4 | Missing | Full | Missing | Missing |
| Standard IMAP and SMTPWeight 5 | FullThe docs list IMAP on 143 and 993 and SMTP on 587 and 465. | Full | Full | Full |
Real cost
mailcow
- Free tier
- The software is free to run. You pay for the machine, DNS, and a way to send mail that other servers will accept.
- Hosted plan
- No hosted price recorded.
- Self-hosting
- Hard. Docker Compose on a Linux host, plus DNS records for the domain. The project documents IMAP, SMTP, SOGo, and Rspamd as part of the stack. Approximate server cost: $10–20/mo for a small VPS, before you solve outbound delivery. Unverified estimate.
Thunderbird
- Free tier
- The desktop and Android apps are free to download from Thunderbird.
- Hosted plan
- No hosted price recorded.
- Self-hosting
- Not a self-hosted product. Thunderbird is a client. The mail still lives on a provider or on a server such as mailcow.
Roundcube
- Free tier
- The webmail software is free. You still need an IMAP host.
- Hosted plan
- No hosted price recorded.
- Self-hosting
- Moderate. PHP, a database, and an existing IMAP server. This is the client install, not a mail exchanger. Approximate server cost: $5–10/mo if it shares a small VPS with the mail server. Unverified estimate.
SnappyMail
- Free tier
- The app is free to host. Mail storage is a separate IMAP account.
- Hosted plan
- No hosted price recorded.
- Self-hosting
- Easy. A PHP app in front of IMAP. Lighter than a groupware suite.
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Top pair
Migrate from Gmail to mailcow
mailcow can pull a mailbox with imapsync. Labels, filters, and the rest of Google do not come with it.
Read the migration guide