Top 12 Open-Source Alternatives to Mailbird

Product categories

Calendar Email Email Clients Email Management Email Service Provider Enterprise Communication Group Chat & Notifications Hosted Email Kanban Productivity SMTP Server Self-hosted Email

Summary

The top open-source alternatives to Mailbird are Spark Mail, Mailspring, and Roundcube. 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.

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
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
Roundcube Landing Page
3

Roundcube

Web-based IMAP email client
Pricing:
- Open Source
#Email #SMTP Server #Email Clients 16 social mentions
FairEmail Landing Page
4

FairEmail

Open source, privacy friendly email app
Pricing:
- Open Source
#Email #Email Clients #Calendar 52 social mentions
Mail-in-a-box Landing Page
5

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
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
Tutanota Landing Page
7

Tutanota

Get your encrypted mailbox for free.
Pricing:
- Open Source
#Email #Email Clients #Enterprise Communication 177 social mentions
Nextcloud Mail Landing Page
8

Nextcloud Mail

💌 Mail app for Nextcloud
Pricing:
- Open Source
#Email #Email Clients #Enterprise Communication 5 social mentions
Mailpile Landing Page
9

Mailpile

Mailpile is a modern, fast web-mail client with user-friendly encryption and privacy features.
Pricing:
- Open Source
#Email #Email Clients #Email Management
Wavebox Landing Page
10

Wavebox

The powerful productivity browser like no other, multi-account sign-in, tab sleeping, groups & pins
Pricing:
- Open Source
- Freemium
- Free Trial
- $8.32 / Monthly
#Messaging #Enterprise Communication #Productivity 16 social mentions
Rainloop Landing Page
11

Rainloop

RainLoop is a web based email client.
Pricing:
- Open Source
#Email #Email Clients #Email Management
Kanmail Landing Page
12

Kanmail

An email client that works like a kanban board.
Pricing:
- Open Source
- Paid
- Free Trial
- $45.0 / One-off (Limited time v1 license)
#Email Clients #Kanban #Productivity 4 social mentions