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Inbox by Gmail

Inbox by Gmail is a new app from the Gmail team. Inbox is an organized place to get things done and get back to what matters. Bundles keep emails organized.

🚨 Inbox by Gmail was discontinued on 2019-04-02
🔎 You can review its best alternatives below or view status details

Top 9 Open-Source Alternatives to Inbox by Gmail

Spark Mail Mailspring Mailpile Mail-in-a-box Tutanota iRedMail Roundcube Calendar Lock PEA Thexyz

Product categories

Appointments and Scheduling Calendar Disposable Email Email Email Archiving Email Clients Email Management Email Security Email Service Provider Enterprise Communication SMTP Server Self-hosted Email

Summary

The top open-source alternatives to Inbox by Gmail are Spark Mail, Mailspring, and Mailpile. One of the criteria for ordering this list is the number of mentions that products have on reliable external sources. You can suggest additional sources through the form here.
  1. Spark Mail Landing Page
    Spark Mail Landing Page
    1

    Spark Mail

    Spark helps you take your inbox under control. Instantly see what’s important and quickly clean up the rest. Spark for Teams allows you to create, discuss, and share email with your colleagues
    Pricing:
    • Open Source

    #Email #Email Clients #Calendar 30 social mentions

  2. Mailspring Landing Page
    Mailspring Landing Page
    2

    Mailspring

    Mailspring is a mail client for Mac, Windows and Linux.
    Pricing:
    • Open Source

    #Email #Email Clients #Calendar 25 social mentions

  3. Mailpile Landing Page
    Mailpile Landing Page
    3

    Mailpile

    Mailpile is a modern, fast web-mail client with user-friendly encryption and privacy features.
    Pricing:
    • Open Source

    #Email #Email Clients #Email Management

  4. Mail-in-a-box Landing Page
    Mail-in-a-box Landing Page
    4

    Mail-in-a-box

    Mail-in-a-Box provides webmail and an IMAP/SMTP server for use with mobile devices and desktop mail software and also includes contacts and calendar synchronization.
    Pricing:
    • Open Source

    #Email #Self-hosted Email #Email Service Provider 115 social mentions

  5. Tutanota Landing Page
    Tutanota Landing Page
    5

    Tutanota

    Get your encrypted mailbox for free.
    Pricing:
    • Open Source

    #Email #Email Clients #Enterprise Communication 177 social mentions

  6. iRedMail Landing Page
    iRedMail Landing Page
    6

    iRedMail

    A fully fledged, free email server solution, an open source project (GPL v2).
    Pricing:
    • Open Source

    #Email #SMTP Server #Self-hosted Email 2 social mentions

  7. Roundcube Landing Page
    Roundcube Landing Page
    7

    Roundcube

    Web-based IMAP email client
    Pricing:
    • Open Source

    #Email #SMTP Server #Email Clients 16 social mentions

  8. Calendar Lock PEA Landing Page
    Calendar Lock PEA Landing Page
    8

    Calendar Lock PEA

    Calendar Lock PEA is an encrypted desktop calendar with a day, week and month view. The shown calendars are never stored unencrypted on your disk, but exist only in the RAM. Platform-independent, Open Source, no installation or registration required.
    Pricing:
    • Open Source

    #Calendar #Appointments and Scheduling #Encryption

  9. Thexyz Landing Page
    Thexyz Landing Page
    9

    Thexyz

    Secure premium email service with mobile sync apps for calendar, contacts, tasks, notes and FISMA compliant email archiving.
    Pricing:
    • Open Source
    • Paid
    • $2.95 / Monthly (25GB)

    #Email #Email Security #Email Archiving 1 social mentions

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If you think we've missed something, please suggest an alternative to Inbox by Gmail.
Please use the Feedback button if you think any of the listed products shouldn't be regarded as open-source.

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