The Best Open Source Gmail AlternativesTop WebMail Providers & Email Clients like Gmail

The best open source alternative to Gmail is Proton Mail. If that doesn't suit you, our users have ranked more than 50 alternatives to Gmail and 12 is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Gmail are Tuta Mail, Disroot, Forward Email and systemli.org.

filter to find the best alternatives

Gmail alternatives are mainly WebMail Providers but may also be Email Clients or Calendar Apps.  Other popular filters includes Android + Open Source. Filter by these or use the filter bar below if you want a narrower list of alternatives or looking for a specific functionality of Gmail.
Gmail iconGmail
  3183
  • ...

Experience robust security, multiple accounts, chat, and fast search with efficient Gmail email management in a streamlined interface.

More about Gmail
Gmail alternatives page was last updated Oct 16, 2024
  1. Proton Mail icon
     870 likes

    Proton Mail provides secure email services with end-to-end encryption, ensuring data protection. Swiss-based and outside US jurisdiction, it offers a free version to champion privacy as a human right. Fully accessible on any device.

    94 Proton Mail alternatives
    Proton Mail screenshot 1

    License model

    • FreemiumOpen Source

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • iPad
    • Tor

    Top Proton Mail Features

    1.  End-to-End Encryption
    2.  Privacy focused
    3.  Encrypted Email
    4.  Ad-free
    5.  Two-factor Authentication
    6.  Mobile friendly
    7.  No Tracking
    8.  Custom Domain
    9.  Dark Mode
    10.  PGP Encryption
    11.  Anonymous Email
    12.  Filters
    Proton Mail iconGmail Icon

    Proton Mail VS Gmail

    Is Proton Mail a good alternative to Gmail?
     
    Comments about Proton Mail as an Alternative to Gmail
     
       
    Comment summary: ProtonMail is praised for its open-source nature, strong privacy features, and encryption, setting it apart from Gmail. Users appreciate its ad-free experience and security focus, with many endorsing it as a free and reliable alternative. Although some note its slower feature development and limited free storage, many consider the Swiss-based service to provide substantial user data protection, leading to strong recommendations for those concerned about privacy.
    wookahn624

    More secure reliable than gmail.Also beautiful UI it's open source,free...

    Top positive commentJun 1, 2017
    14
    John Fastman

    Protonmail is free, open-source, encrypted (more private). Lacks: calendar & good contacts feature, but these are in the pipeline. Protonmail cannot by design data-mine your software for it's own profit; Gmail makes it's money by violating your privacy that way.

    Top positive commentDec 20, 2016
    18
    Ziaul Haque

    ProtonMail is absolutely amazing. It's open source, privacy focused. User friendly, privacy focused & much more.

    Positive commentSep 6, 2024
    0
    AHMEDQ

    It is free, open source, secure, very powerful, and has great related services

    Positive commentMay 5, 2024
    0
    texascowboi

    There are up to 15 custom email address' available on the premium plan...I think I have about 5 so far. Proton Mail can be integrated with desktop email clients like Thunderbird, Outlook, or Apple mail. Proton is based in Switzerland, so it is safe from the FIORC. The VPN is outstanding too!

    Positive commentJan 23, 2024
    0
    Show more comments
    Hide | 5 of 31 comments
    Gmail Icon
    Proton Mail icon
    • Almost everyone thinks Proton Mail is a great Gmail alternative.

    • Proton Mail is the most popular Web-based, Windows, Android & Mac alternative to Gmail.

    • Proton Mail is the most popular Open Source & free alternative to Gmail.

    • Proton Mail is Freemium and Open SourceGmail is Free and Proprietary
    • Proton Mail is Privacy focusedGmail is not according to our users
  2. Tuta Mail icon
     459 likes

    Offers comprehensive encryption for email, calendar, and contacts with zero personal info required. Built on open source, install via Play Store, F-Droid, or APK, with Tor and VPN support. Both free and paid plans; utilizes quantum-resistant encryption ensuring privacy-focused, anonymous usage.

    94 Tuta Mail alternatives
    Mail View

    License model

    • FreemiumOpen Source

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • iPad
    • Self-Hosted
    • Flathub
    • F-Droid

    Top Tuta Mail Features

    1.  Privacy focused
    2.  Encrypted Email
    3.  End-to-End Encryption
    4.  Dark Mode
    5.  Custom Domain
    6.  Encrypted calendar
    7.  Contacts
    8.  Integrated File Sharing
    9.  No Tracking
    10.  Multiple Account support
    11.  Lightweight
    12.  Email Organizer
    Tuta Mail iconGmail Icon

    Tuta Mail VS Gmail

    Is Tuta Mail a good alternative to Gmail?
     
    Comments about Tuta Mail as an Alternative to Gmail
     
       
    justinterested

    Tutanota is a great email provider with very good encryption (it uses end-to-end encryption like Signal – i.e. they cannot read your emails/gife them to the government, Gmail can!) and they don't sell any data. It is also very easy to use, it has a very nice app, a desktop client and a web client. There is really no reason why you wouldn't want to use it :)

    Top positive commentJan 6, 2019
    8
    John Fastman

    Tutanota is a good Gmail replacement for most of the same reasons Protonmail is: Your email is stored encrypted on Tutanota servers in a way that neither they nor any potential hackers can decipher it. This means your emails can't be scanned to profile you and sell your private information for profit, which is how Gmail makes its money. Tutanota also enables encrypted email communication which Gmail does not. It's user friendly and more features are on the way.

    Top positive commentDec 26, 2016
    6
    Guest

    Does not support POP/IMAP, you will not be able to use it with Thunderbird or another email client.

    Top negative commentJul 14, 2019
    25
    Myliiee

    Really great privacy focused service

    Positive commentAug 28, 2023
    1
    Bobbee Bumble

    Replaced successfully G.Calendar G.Contacts for me. Cheap privacy first services with no compromise on the ease of use.

    Positive commentDec 4, 2020
    1
    Show more comments
    Hide | 5 of 11 comments
    Gmail Icon
    Tuta Mail icon
    • Almost everyone thinks Tuta Mail is a great Gmail alternative.

    • Tuta Mail is the most popular Self-Hosted alternative to Gmail.

    • Tuta Mail is Freemium and Open SourceGmail is Free and Proprietary
    • Tuta Mail is Privacy focused and LightweightGmail is not according to our users
  3. Disroot icon
     101 likes

    Disroot is a platform providing online services based on principles of freedom, privacy, federation and decentralization.

    34 Disroot alternatives
    Disroot screenshot 1

    License model

    • FreeOpen Source

    Application type

    Platforms

    • Online
    • F-Droid

    Top Disroot Features

    1.  Privacy focused
    2.  Encrypted Email
    3.  Ad-free
    4.  Can be used outside browser
    5.  Decentralized
    6.  IMAP Support
    7.  End-to-End Encryption
    8.  Support for Aliases
    9.  No Tracking
    10.  European data privacy
    11.  SMTP Support
    12.  Support for SFTP
    Disroot iconGmail Icon

    Disroot VS Gmail

    Is Disroot a good alternative to Gmail?
     
    Comments about Disroot as an Alternative to Gmail
     
    Infinity64

    It's open-source, easy to use, compatible with IMAP, and not spying on you. To top it off, it also supports encryption and PGP!

    Positive commentNov 2, 2022
    1
    Gmail Icon
    Disroot icon
    • Almost everyone thinks Disroot is a great Gmail alternative.

    • Disroot is Free and Open SourceGmail is Free and Proprietary
    • Disroot is Privacy focused and DecentralizedGmail is not according to our users
  4. Forward Email icon
     5 likes

    Forward Email is the best email service, encrypted email service, and fastest email service. It supports unlimited domains and aliases for no extra cost. It uses quantum safe ChaCha20-Poly1305 encryption and offers SMTP, IMAP, POP3, email webhooks, email regular expressions...

    24 Forward Email alternatives
    Forward Email screenshot 1

    License model

    • FreemiumOpen Source

    Application type

    Platforms

    • Self-Hosted
    • Online

    Top Forward Email Features

    1.  End-to-End Encryption
    2.  Support for Aliases
    3.  GPG Encryption
    4.  AES-256 Encryption
    5.  Ad-free
    6.  Dark Mode
    7.  Spam Filter
    8.  Mail Filtering
    9.  OpenPGP
    10.  PGP Encryption
    11.  No Tracking
    12.  Two-factor Authentication
    Forward Email iconGmail Icon

    Forward Email VS Gmail

    Is Forward Email a good alternative to Gmail?
     
  5. systemli.org icon
     4 likes

    Systemli.org is a left network and technics-collective that was founded in 2003. Our aim is to provide safe and trustworthy communication services. The project addresses political activists and people who have a particular need to protect their data.

    19 systemli.org alternatives

    License model

    • FreeOpen Source

    Platforms

    • Online
    systemli.org iconGmail Icon

    systemli.org VS Gmail

    Is systemli.org a good alternative to Gmail?
     
  6. Criptext icon
     11 likes

    Finally, an email service that's built around your privacy. Get your @criptext.com email address and see what it's like to have peace of mind and privacy in every email you send.

    26 Criptext alternatives
    Criptext screenshot 1
    Criptext screenshot 2
    +1
    Criptext screenshot 3

    License model

    • Free PersonalOpen Source

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Android
    • iPhone

    Criptext Features

    1.  Privacy focused
    2.  Support for Aliases
    Discontinued

    Creator recently sent and email about going solo, but since then support has been unresponsive, as have nearly all new issues on github for a year now if not more...

    Criptext iconGmail Icon

    Criptext VS Gmail

    Is Criptext a good alternative to Gmail?
     
  7. Webmail Lite icon
     16 likes

    Open Source WebMail Lite is a free community edition of full-featured WebMail Pro server application intended for users who need a clean and simple web mail application, which is fast and easy to use. Whether you need a free web browser based email client software for Windows ASP.

    30 Webmail Lite alternatives
    Afterlogic Webmail Lite

    License model

    • FreeOpen Source

    Application type

    Platforms

    • Online
    • Self-Hosted
    Webmail Lite iconGmail Icon

    Webmail Lite VS Gmail

    Is Webmail Lite a good alternative to Gmail?
     
    Comments about Webmail Lite as an Alternative to Gmail
     
    Rasheed AZ

    Webmail lite is a front end for email servers. They're not an email provider!

    Negative commentOct 16, 2024
    0
    Gmail Icon
    Webmail Lite icon
    • Webmail Lite is Free and Open SourceGmail is Free and Proprietary
7 of 12 Gmail alternatives