There are multiple alternatives to Mozilla Thunderbird, like eM Client, BetterBird, Microsoft Outlook, Apple Mail, etc., for desktop on Mac & Windows. Web-based Thunderbird email client alternatives like Gmail and Zoho are gaining popularity for anytime access.
We have tested multiple email clients on Mac, Windows & Linux so that you can find the best replacement for Mozilla Thunderbird for your business or personal needs.
Thunderbird is a widely used email client developed by Mozilla. It is a free, open-source email client available for multiple Desktop OS and Android mobile devices.
However, users often wonder, “Is there something better than Thunderbird?” “Is the Thunderbird email outdated?” and more. Thus, they want to switch from Thunderbird and look for apps like Mozilla Thunderbird, just better.
Looking for a Thunderbird Email Client Alternative to Switch?
Thunderbird Migration Tool is an automated & secure desktop-based software for Mac & Windows. For moving the local folder, contacts, calendar, and settings to another desktop or web-based email client.
It can handle industry-scale migrations with ease. An accurate and integrity-focused tool that preserves all email attributes like attachments, metadata, and folder hierarchy. No matter the mailbox size.
Do not lose any data when switching from Thunderbird to an alternative email client. Download the free version of the tool and try the demo version.
Why Do Users Look for Alternatives to Mozilla Thunderbird?
Multiple drawbacks of using Thunderbird have inspired users to look for Mozilla Thunderbird alternatives, such as:
- Frequent Thunderbird Crashes
- Thunderbird Issues and Not Working
- Risk of data loss and corruption
- Low-level integration with other tools
- Outdated UI
- No direct cloud storage, only local
How to Choose the Best Alternative to Mozilla Thunderbird?
Before switching to any Thunderbird alternative, make sure you keep the following key considerations in mind:
- Are you looking for a free & open-source alternative to Mozilla Thunderbird?
- Is it for personal or business usage?
- OS compatibility of the selected email client.
- Do you need an Offline alternative with local storage, or do you need access on the go?
Top 7 Thunderbird Email Client Alternatives
After trial, testing, and considering multiple reviews from popular software listing websites. The top 7 alternatives to Mozilla Thunderbird for professional or individual usage, free or paid, and for multiple OS are:
| Email Client | Best For |
| Betterbird | Better version of Thunderbird |
| Microsoft Outlook | Best for business and professional users |
| eM Client | Best if you need both local & on-the-go access with an easy-to-use interface |
| Apple Mail | Native Secure & Free Thunderbird alternative for Mac |
| Mailbird | For Mac & Windows, especially for those who need Exchange support |
| Zoho Mail | For webmail-based professional usage |
| Evolution | Best Linux-focused Thunderbird alternative |
Betterbird as Alternatives to Mozilla Thunderbird
It is a fine-tuned version of the Thunderbird email client, initially released in 2022.
Device Support: Mac, Windows & Linux
Recommended For: Users who need familiar Thunderbird functionality
Cost: Free & Open-Source
Advantages & Features:
- Stored data locally and enables offline access
- No Ads
- Integration with contacts & calendar
- You can run it alongside Thunderbird
- No bugs like in Thunderbird
- Better performance with larger Mailboxes
Limitations & Disadvantages:
- Comparatively new as compared to a reliable industry-standard email client
- No premium version available
- Small customer support team
- No Mobile Version
- No EWS support
Uprising and gaining popularity as a free alternative to Thunderbird.
Outlook: Thunderbird email client alternative for Mac & Windows
Outlook is a credible and established email client. Developed by Microsoft and has been in the market since 1997.
Device Support: Has Web-Mail (OWA), Mac, Windows, iOS & Android Application
Recommended For: For business and enterprise-grade tools. Native email client for Windows devices.
Cost:
- 1 Year Free Plan with limited features
- Has multiple paid licenses for home and professional users starting from $1.99/month.
Advantages & Features:
- Anywhere cloud accessibility with local offline storage
- No Ads and better data security with international data privacy compliance.
- Variety of licenses for Businesses, enterprises, home users, and Education.
- Industry-standard tool used worldwide.
- Helpful customer support.
- Supports Exchange Server accounts.
- Extensive integration with tools such as Excel, Word, Teams, and SharePoint.
Limitations & Disadvantages:
- Paid email client
- No available on Linux
- Difficult for beginners switching from Thunderbird.
eM Client as a Replacement for Mozilla Thunderbird
eM Client is an all-in-one, modern desktop email tool for managing multiple email accounts, calendars, tasks, contacts, chat, and notes altogether.
Device Support: Windows, macOS, Android, iOS
Recommended For: Users looking for a modern interface with the latest tech advancements
Cost: Freemium model
Free Version: Only 2 email accounts can be used at once
Premium Version: Has VIP support & can add unlimited accounts
Advantages & Features:
- A variety of file format supported for import and export of emails
- Has AI-enhanced features
- Support business-level email services. For example: Google Workspace and Exchange server.
- Modern easy-to-use interface
Limitations & Disadvantages:
- The free version has limited account handling capabilities
- No cloud storage or accessibility
Apple Mail: Best alternative to Mozilla Thunderbird for iOS/Mac
Apple Mail, also known as Mac Mail or Mail App, is the native email client on Mac and iOS devices. Used by over 1 billion people across the globe for both personal and even professional/business use.
Device Support: iPhone, iPad, and Mac OS
Recommended For: Mac Users looking for a free Thunderbird email client alternative with a simple UI design and complete security.
Cost: Fully Free of Cost
Advantages & Features:
- No download & set-up required
- Extremely fast and simple UI
- Has Flags & Tags
- Offers advanced user-friendly filters
- Offers S/MIME Support
Limitations & Disadvantages:
- Limited to Mac and iPhone users
- Has limited third-party integrations
- Restrictive add-on support
Best suited alternative as both Apple Mail and Thunderbird support MBOX emails.
Mailbird as an Alternative to Mozilla Thunderbird
Users often wonder, “Is Mailbird better than Thunderbird?” Mailbird is a fair alternative to Mozilla Thunderbird for Windows & Mac.
It has been awarded by platforms like “G2” & “Clean Email” as a secure email client in 2025.
Device Support: Only for desktop Mac & Windows
Recommended For: Users looking for a customisable Thunderbird email client alternative with unique and helpful app integrations.
Cost:
Free Trial Version is available for everyday users
Personal/Pro License for better integration with Slack, WhatsApp, Google Calendar, and Facebook. Starting from 39$.
Advantages & Features:
- Better accessibility with wide-language support.
- Clean UI like modern SaaS apps.
- Built-In App Integrations with the Pro-Mailbird version.
Limitations & Disadvantages:
- No end-to-end encryption.
- Less Secure
- Performance Issues
- Lacks third-party integrations
- Limited customer support
- No option for print preview
Using the free version of Mailbird is recommended, but many users have reported that the premium version is not worth it.
Evolution: Thunderbird Email Client Alternative for Linux
Evolution Mail is a dedicated email client for Linux (GNOME). It is one of the best alternatives to Mozilla Thunderbird, especially for Ubuntu, Linux Mint, Fedora, and Arch Linux.
It has been a standard email client for Linux users since its launch in 2000.
Device Support: Only Linux
Recommended For: Users who need better integration with the Linux CLI.
Cost: Free and open-source alternative to Thunderbird
Advantages & Features:
- Root-level integration with GNOME
- Enable Microsoft Exchange on Linux devices
- Calendar, contacts, tasks, and meetings
- Large community support
Limitations & Disadvantages:
- Complex and technical interface
- No add-ons or third-party app integration
- Limited import options
For other Linux-based alternatives to Mozilla Thunderbird, consider Mailspring, KMail, and Claws Mail/Sylpheed.
Know More: How to Migrate Thunderbird to Evolution Email?
Zoho Mail
Zoho offers a trusted suite for cloud-based business software. Although Zoho Mail was launched in 2008, it has gained popularity since 2020 for its minimal, ad-free interface, with productivity tools.
Device Support: Cloud webmail, Zoho Mail Desktop Lite works on Mac OS and Windows. It has a dedicated app for iOS and for easy, anywhere access.
Recommended For: Small Business owners who need CRM integrated with an email client
Cost:
Free Webmail Plan is available
Paid Plans starting from $1–$1.25 per user/month
Advantages & Features:
- Cloud accessibility
- Multiple easy import options from other clients
- Wide variety of Business & Collaboration Tools
- Advanced Security Features
Limitations & Disadvantages:
- Do not store emails locally
- No Offline access
- The Zoho Desktop client only supports a Zoho Mail account
Mozilla Thunderbird V/S Thunderbird Email Client Alternative
Here is a quick comparison of Thunderbird and its alternatives to choose the best alternative to Mozilla Thunderbird for yourself.
Need help choosing the right alternatives to Mozilla Thunderbird for you?
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